Economic Business Sustainability and Strengthening Human Resource Capacity Based on Increasing the Productivity of Small and Medium Enterprises (SMEs) in Makassar City, Indonesia

: The dynamics of urban development coupled with economic growth have contributed positively to the development of small and medium enterprises (SMEs). Optimizing the utilization and strengthening of the capacity of SMEs’ human resources will encourage increased productivity of economic enterprises and the sustainability of small and medium enterprises (SMEs). This study aims to analyze (1) strengthening the capacity of human resources (HR) of small and medium enterprises to work as a determinant of increasing the productivity of small and medium enterprises (SMEs) and labor absorption; (2) the effect of strengthening the capacity of human resources (HR), business productivity, technology utilization, and business diversification on the sustainability of small and medium enterprises (SMEs); and (3) optimizing the role of government in supporting business development, increasing productivity, business stability and sustainability of small and medium enterprises (SMEs). This study uses a sequential explanatory design approach. Data were obtained through observation, in-depth interviews, surveys, and documentation. Qualitative analysis in this study was carried out through a process of data reduction, data presentation, and conclusion drawing, while the quantitative analysis in this study uses quantitative descriptive analysis, correlation, and multiple regression. The results showed that strengthening the capacity of human resources, coupled with the use of technology, and followed by diversification of business, had a positive contribution to increasing the productivity of small and medium enterprises (SMEs). Fur-thermore, strengthening human resource capacity, business productivity, technology utilization, and business diversification simultaneously have a positive and significant correlation to the sustainability of small and medium enterprises (SMEs) with a determination coefficient of 72.3%. This study recommends that government policy support through strengthening human resource capacity, increasing business productivity, technology utilization, and business diversification have an impact on the sustainability of small and medium enterprises (SMEs) in Makassar City, Indonesia.


Introduction
The economic growth of big cities and metropolitan areas in developing countries is directly related to industrialization and modernization, and the coordinated development of industrialization and urbanization has become a common goal and concern for these existing reliance on manual bookkeeping. These seven factors are directly related to the quality of human resources in relation to product innovation efforts, business diversification, business management, and product marketing of SMEs. Furthermore, government policy support plays an important role in encouraging increased business productivity, innovation, and creativity toward the sustainability of SME businesses [27]. Human resource development is an important activity to be carried out by any economic business organization so that the knowledge, abilities, and skills of the workforce are in accordance with the demands of the job and given responsibilities [28,29]. Optimal performance can be achieved by a person or group of people, according to the authority and responsibility provided by strengthening the capacity of human resources in order, to achieve organizational goals [30]. Thus, strengthening the capacity and competence of human resources will have an impact on optimizing the performance of SMEs. This means that strengthening the capacity and competence of human resources followed by mastery of technology will encourage increased business performance, increased income, and the welfare of SME players in Makassar City.
Strengthening the capacity of human resources is very important to support the sustainability of small and medium enterprises. This means that quality resources will contribute to increasing the productivity of economic enterprises. Thus, increasing the productivity and sustainability of SMEs in Makassar City will have an impact on economic growth and absorption of labor towards reducing unemployment and poverty. Furthermore, the economic sustainability of SMEs in the study is contextualized on four basic principles, namely, (1) economic sustainability, which is oriented toward the effectiveness and efficiency of business management based on the management of potential production and market factors, (2) social sustainability, which is oriented toward creating social cohesion, strengthening business capacity, and creating social responsibility for SMEs actors toward their social environment, and (3) environmental sustainability, which is oriented toward efforts to build awareness of SMEs actors toward their environment through clean business products, product recycling, and ensuring environmental stability in which their business is based on pollution control-stored environment. Thus, the business sustainability of SMEs in this study is contextualized on economic, social, and environmental sustainability based on strengthening human resource capacity.
Research results that support this study include (1) the results of the study by Pech and Vrchota [31], which confirmed that SMEs' economic enterprises have a greater opportunity if they use technology, are easily accessible, and invest in Industry 4.0, thus encouraging increased profits for SMEs; (2) research conducted by Andalib and Halim [32], which emphasized that the challenges faced by SMEs are related to financial performance, regulation, and innovation so that efforts to increase the productivity of SMEs are needed by building innovation and creativity; and (3) research conducted by Nigri and Baldo [33], which emphasized that the effectiveness and efficiency of financial and human resource management will have an impact on economic performance and the sustainability of SME businesses. The three results of these studies are at an intersection with the affirmation that SMEs' economic enterprises that utilize technology, innovation, effectiveness, and efficiency of financial management will have an impact on increasing the profitability and business sustainability of SMEs. The focus of this study is more oriented toward strengthening the capacity of human resources, followed by mastery of technology and diversification of business that will have an impact on increasing economic productivity and the sustainability of SMEs. Thus, the novelty of this research is that strengthening the human resource capacity of SMEs through government policy support, coupled with the ability to utilize technology, will encourage increased business productivity, business diversification, and the economic sustainability of SMEs businesses.
The sustainability of SMEs in Makassar City is very important and strategic to support economic growth, job creation, and social justice toward strengthening human resource capacity and increasing the productivity of economic enterprises. This study is aimed at examining and analyzing the strengthening of human resource capacity toward increasing business productivity, technology utilization, business diversification, and the sustainability of SMEs. Thus, this study is aimed at answering research questions, namely, (1) how can strengthening the capacity of the human resources of SMEs work as a determinant of increasing business productivity and labor absorption? and (2) how is the effect of strengthening human resource capacity, business productivity, technology utilization, and business diversification on the sustainability of SMEs?

Conceptual Framework
SMEs play an important role in economic growth, employment, and the distribution of development. They create job opportunities and are an important driver of growth in the gross domestic product (GDP). As for the moderating effect of entrepreneurial orientation (EO), innovativeness in entrepreneurship positively and significantly regulates the entrepreneur's ability (EA)-SMEs' sustainable growth (SMESG) relationship; proactiveness positively regulates the relationship between almost all EA dimensions and SMESG, and risk tendency regulates the EA-SMESG relationship in terms of creativity and ability to control risk [34,35].
The SMEs that predominantly contribute to economic growth in Indonesia are in the industrial, trade, and transportation sectors. It is often stated in the literature that one comparative advantage of micro-small to medium-sized enterprises (MSMEs) relative to their larger counterparts (LEs) is their flexibility and capacity to move from one product to another when market demand changes, and they can easily expand when the economy grows and contract in the case of economic crises [36,37]. Furthermore, in the social realm, SMEs have the ability to reduce income inequality and social disparities. Income redistribution can cause large-scale transformations in the human resource structure, essentially changing economic outputs via its impact on life satisfaction and motivation for work [38]. Thus, the role of SMEs is to provide goods and services to consumers with low purchasing power and provide such to urban consumers with higher purchasing power. SMEs also contribute by providing raw materials or services for large businesses and local governments. Increases in output and productivity can increase the wages paid by SMEs and lift millions of people out of poverty [39].
The empowerment and increased productivity of SMEs are very important and strategic for strengthening the structure of the national economy. Economic globalization has posed many challenges for SMEs due to increasingly fierce competition [24]. SMEs are developed to create independence, are highly competitive, and play a major role in the production and distribution of basic resources, raw materials, and capital necessary to face free competition. SMEs receive the highest priority among policymakers regarding the socio-economic situation of a country [40]. The strategic attributes of SMEs that enable optimal development include (1) the innovation and use of technology for product development, (2) the formation of humanitarian relations that are mutually beneficial, (3) the ability to create job opportunities and absorb labor, (4) flexibility and the ability to adapt to market conditions, and (5) managerial dynamics and entrepreneurial roles. SMEs are at the heart of a nation's wealth creation, job creation, and economic development [41]. SMEs are divided into several categories, namely, (1) livelihood activities-SMEs whose aim is to provide a living, more commonly called the informal sector; (2) micro-enterprises-SMEs that have the character of craftspeople but are not yet entrepreneurial; and (3) small dynamic enterprises-SMEs that have an entrepreneurial spirit and are able to accept subcontracts and export jobs. The observed high levels of emotional intelligence and trends of ever-increasing interpersonal skills as managers increasingly experience working with people is a strong argument for the sustainable development of SMEs [42,43].
SMEs have the potential to be developed through broad market support, the availability of readily available raw materials, and the availability of human resources. Adaptability has emerged in the management/entrepreneurship literature as a business strategy for innovation, performance, and responding in a flexible manner to ever-changing contexts [44]. Furthermore, several things need to be optimized in relation to SMEs, including (1) good management support for the development of SMEs, (2) business and product planning to minimize failure, (3) the mastery of science and technology to support business sustainability, (4) efficient and effective production systems, and (5) the ability to make breakthroughs and innovations, thus differentiating the competitiveness of SMEs. The challenges presented by global competition force SMEs to grow and lead innovation initiatives [45,46]. They must often rely on technology-based capabilities [47], conveyed and supported by larger companies geographically collocated in regional clusters [48]. According to [49], the newer a company is the more it has, to be globalized, which requires a timely flow of information [50], to explore the market and identify profitable opportunities [51], market share, profitability, products, services, capital, intellectual property [52], technology [53], and sustainability [54,55].

Human Resources and Productivity of SMEs
Human resources are an important factor in driving economic growth and increasing the productivity of SMEs. Some of the key aspects for human resource development are information, technology, training, education, new skills, automation, communication, innovation, professionalism, productivity, artificial intelligence, digitization, and electronic recruitment [56,57]. Increasing per capita opinion is closely related to human resource development in terms of honesty, authority, knowledge, and work performance, so it is necessary to increase the capacity of human resources through training, through evaluation to assess how effective these efforts are to exploit the potential of existing human resources [58]. Furthermore, scientific developments and technological advances require SMEs to be able to harness human resources to become more efficient and produce products more quickly. In today's dynamic and competitive business world, where the exchange of ideas is proficient, "sustainable competitive advantage" (SCA) is no longer deeply rooted in an organization's physical resources but is instead influenced by the nonphysical human resources of the organization [59,60]. Thus, strengthening the capacity of human resources and the use of technology will have an impact on increasing the productivity, business diversification, and business sustainability of SMEs. Technology capability has a positive and statistically significant relationship with company performance in the manufacturing industry, but not in the service industry, whereas innovation culture has a positive and statistically significant relationship with firm performance in the service, but not the manufacturing industry [61,62].
Kuznets [63] stated that business innovations fall into two categories, which are (1) cost reductions that do not result in any change in product quality and (2) innovations that create new products and demand for these products. Furthermore, cultural factors, such as hard work, honesty, and courtesy contribute positively to the business development of SMEs. A sustainable economic enterprise is oriented toward developing a culture in which employees are effectively involved in company activities, leading to long-term success [64,65]. Capital resources also play an important role in managing natural resources through the support of science and technology to encourage the improvement of SMEs. Optimizing resource potential and strengthening human resource capacity through the use, of technology and cultural changes in society should encourage economic growth and SME development [66].
Capital resources are inventories of factors of production that can be physically produced. If the stock of capital increases within a certain time frame, this is called capital accumulation or capital formation. This transition has a profound bearing on human productive capabilities, adaptability, creativity and values, the organization of the economy, public policy, social awareness, and lifestyles, thereby influencing sustainability [67,68]. The formation of venture capital means not directing all activities to merely meet the urgent needs and desires of consumption but carefully directing the improvement of the quality of goods, capital, equipment, machinery, transportation facilities, factories, and equipment. Thus, the formation of capital is an investment in the form of capital goods that can increase capital stock and production output. The total factor productivity (TFP) of a region is perhaps the most highly appropriate indicator of economic performance and is most related to technological complexity and production effectiveness [69].
Human resources are everyone in the organization who is selected through a process of recruitment and selection processes that are responsible the task of personnel management to achieve organizational goals [70][71][72]. Thus, human resource management is a policy, practice, and system that affects employee behavior, attitudes, and performance in relation to the utilization, development, assessment, remuneration, and management of employee groups [73,74]. Furthermore, to deal with changes in the organizational environment, both micro and macro, which are constantly changing and complex, every economic business actor and company must be dynamic in order to adapt and make efforts to strengthen the capacity, competence, and improve the quality of the workforce used.
Hasibuan [75] mentioned that the development and strengthening of human resource capacity is part of an effort to improve the technical, theoretical, conceptual, and moral abilities of employees in accordance with job requirements through education and training. This means that planned and organized training and development aimed at increasing the knowledge, skills, and abilities of employees will influence employee attitudes towards the work and responsibilities given [76]. Thus, strengthening the capacity and competence of human resources will build honesty, responsibility, cooperation, creativity, and employee discipline toward the ability to utilize technology, diversify business ventures, increase productivity, and sustain the economic business.

SMEs' Product Quality and Service Quality
The quality of SMEs' products is related to service quality as an integral part of the SME business management process. Innovative technology-based entrepreneurship will be able to encourage entrepreneurs and employees, economic business continuity, and the growth of SMEs [77]. The two main factors that affect service quality are the expected service and perceived service, that is, if the service received is as expected, the service quality is perceived as good or satisfactory. The special characteristic of a multilingual organization is that, when dealing with the influence of the perceived quality dimension, it is necessary to consider the perceived quality of the individual services and the overall perceived quality of the multilingual organization and overall satisfaction with it [78,79]. The dimensions of access, financial aspects, and employee competencies are important aspects of service quality, along with other subscales, for increasing customer satisfaction [80]. Conversely, if the service received is worse than expected, the service quality is perceived as poor [81]. Service quality is measured in several stages in terms of the service that is experienced (delivered service). At various points, the relation to internal processes involves the end service perceived by the consumer and the input of the service delivery process. The service industries are mostly customer-driven, and their survival in a competitive environment largely depends on the quality of the services provided by them [82,83].
Input consists of the sources used through information-system-based services [84]. Service quality has two cycles: First, the quality of a service is defined and formulated. The actual service is delivered by the operational employee, a response is provided by the customer, and the service quality design can be modified. Second, customers have their own perceptions coupled with their experiences of quality elsewhere [85]. Furthermore, service quality is defined as the totality of the features and characteristics of a product or service related to the product's ability to meet consumer needs and desires in terms of the value of use, product design, and marketing. The customer has always been and always will be a priority in the development of a new product; it is necessary to first understand his/her requirements and expectations [86]. Indicators for measuring product quality include (1) the types/variations of the many types of products that can be offered to consumers and meet their needs, and (2) the uniqueness of the product based on consumer judgment. Consumer intelligence refers to the idea that multi-dimensional quality supports various roles, so it is very important to explore each segment's profile in this regard in terms of demographic and behavioral characteristics [87,88].
Consumer satisfaction is very important for a business entity and the economic sustainability of SMEs. For instance, positive relationships have been found between these drivers and the adoption of sustainable practices, access to new markets and gaining a competitive advantage [89,90], a positive brand image and increased customer base [91], and internal social relations with employees [92,93]. Without consumers, a business entity cannot survive [94]. SMEs can become stable and sustainable by implementing (1) sustainable development with a customer-focused perspective and sales, (2) sustainability in trade, and (3) customer-centricity and sustainability [95]. Thus, every business venture must be able to provide products/services that can meet the needs and desires of consumers so as to achieve consumer satisfaction. New communications and computing technology, and the establishment of reasonably open global trading regimes, mean that customers have more choices, variegated customer needs can find expression, and more transparent alternatives can be supplied. Businesses, therefore, need to be more customer-centric, especially since technology has evolved to allow the provision of information and customer solutions at lower cost [96].
The level of customer satisfaction is a function of the difference between the perceived performance and desired or expected performance. Retailers need to continuously improve customer experience in different shopping situations to maintain customer satisfaction in the long term and achieve sustainability [97]. If performance is below expectations, consumers are disappointed [98]. Customer satisfaction is the level at which the needs, wants, and expectations of consumers are met, which results in repeat purchases or continued loyalty [99]. Consumer satisfaction is reflected in the results of products or services that can meet their needs or wants in consumption. This means that consumers evaluate a product or service according to their needs or expectations, which can lead to dissatisfaction [100]. Thus, customer satisfaction value refers to the consumer's experience with a product or service obtained. Customer satisfaction and a positive relationship with a company, in general, can affect both areas, such as by reducing stress, creating positive social interactions and relationships, enabling more well-considered purchases, thus reducing both costs for consumers and the impact on the environment [101,102].

Economic Business Sustainability of SMEs
Business organizations have a direct relationship with the use of production factors as a unitary economic system. Strategic programs and basic infrastructure modernization are considered the primary and best ways to promote local economic development [103]. Economic business organizations and strategic programs complement each other (complementary) with capital and labor to increase SMEs. Economic development policies play an important role in increasing the productivity of SMEs [104]. The concept of modern economic growth requires entrepreneurs to be organizers and risk-takers in the face of uncertainty. Furthermore, entrepreneurs have special abilities for work compared to society in general. Sustainable entrepreneurship (SE) is oriented toward social and environmental goals leading to economic success [105].
Schumpeter [106] stated that an entrepreneur does not need to be a capitalist in the sense that the main function of economic business organizations is to make reforms and innovations. In the social innovation process, social enterprises collaborate with various stakeholders regarding their business and social goals [107]. Thus, economic enterprise organizations include governments, banks, and other financial institutions involved in advancing the economy and the sustainability of SMEs. SMEs play an important role in the development of economic enterprises, including start-ups that spark innovation, increase productivity, and bring about structural change [108]. Increasing the productivity of SMEs toward the sustainability of economic enterprises is contextualized on the follow-ing three basic principles: First is economic sustainability, in this case, ensuring the sustainability of economic enterprises in a sustainable manner and promoting economic efficiency through efforts to optimize the use of natural resources. The sustainability of the economic business will be related to stakeholders, the environment, and the community as a single system [109].
The second is social sustainability, in this case, encouraging the increase in the productivity of SMEs in the direction of creating jobs, reducing productive unemployment, reducing poverty, and creating social cohesion. Economic business sustainability refers to a balance between dimensions, namely, economic, social, and environmental in the direction of increasing productivity and optimizing the utilization of human resources [110]. The third is environmental sustainability, in this case, encouraging an increase in the productivity of economic enterprises coupled with saving the environment toward fulfilling people's basic needs, recycling products, clean products, and controlling environmental pollution based on the participation of SME business actors. The productivity of economic enterprises is oriented toward several features, namely, waste management and disposal, promoting environmentally friendly product designs, reducing greenhouse gas emissions, safer supply of raw materials, and encouraging competitiveness and innovation, and employment [111]. These three basic principles will require support for strengthening the capacity and competence of human resources, followed by mastery of technology. Human resource development is one of the principles that must be implemented consistently, meaning that employee development must be carried out with a long-term perspective and future competencies as the basis for implementing Industry 4.0 [112,113].
Referring to the theory used as a reference in this study, efforts to promote the sustainability of SMEs based on strengthening human resource capacity will require policy support from the government, including (1) the use of environmentally friendly technology in relation to increasing the productivity of SMEs will require strengthening the capacity of human resources and (2) diversifying SMEs through innovation and building creativity, hard work, recognizing target markets, and knowing consumer tastes and expectations. Both of these aspects are developed to encourage increased economic productivity of SMEs through support for the use of venture capital from formal financial institutions and economic business cooperation toward optimization of product marketing. Thus, efforts are needed to expand financial support and cooperation support for SMEs and entrepreneurs, so that they can continue to play their role in investment, growth, innovation, and employment [114,115]. Increased business productivity of SMEs, coupled with the ability to access potential markets, will encourage increased income, absorption of productive labor, and business stability. The economic sustainability of SMEs will be created through the support of strengthening human resources in a sustainable manner.
The hypotheses proposed in this study include (1) there is a positive and significant relationship between strengthening human resource capacity on the sustainability of small and medium enterprises (SMEs); (2) there is a positive and significant relationship between business productivity and sustainability of small and medium enterprises (SMEs); (3) there is a positive and significant relationship between the use of technology on the sustainability of small and medium enterprises (SMEs); and (4) there is a positive relationship between business diversification and the sustainability of small and medium enterprises (SMEs). The conceptual framework of this study is presented in Figure 1.

Research Design
It is apparent that the number of SMEs in Makassar City has continued to increase over time. The research approach chosen in this study combined qualitative and quantitative assessments. Case studies were selected with the following considerations: (1) the productivity of developing SMEs is not optimal for supporting the economic growth of Makassar City, (2) human resources are not yet optimal in supporting the economic enterprise performance of SMEs, and (3) the mastery of technology and business diversification are not optimal in supporting the stability of SMEs. Furthermore, the qualitative approach in this study aimed to reveal the potential and constraints of SMEs in increasing the productivity of developing economic enterprises. In this context, it is assumed that the development of SMEs in Makassar City can be improved through strengthening the capacity of human resources and the use of technology to increase the stability of the developed economic enterprises. Thus, the quality approach was used for interpreting the meaning of the dynamics of SMEs developing in Makassar City. This information was collected through observation and in-depth interviews. City A quantitative approach was used to study and analyze the characteristics of SMEs, the conditions, and problems of human resources for SMEs, and the productivity of SME businesses in Makassar City. This information was collected using a questionnaire instrument. The quantitative approach in this study employed percentage analysis, multiple regression analysis, and correlation analysis. Furthermore, the answer to each question in the questionnaire was based on an ordinal and interval scale for measurement. According to the approach chosen, i.e., the case study, this type of research is a combination of quantitative-qualitative approaches [116]. The reasons the researchers combined the two approaches include (1) the specific nature of SMEs cases in Makassar City, (2) the prominent consistency and sequences of the observed cases, and (3) to obtain data from two different realities; hence, it was necessary to combine the two approaches, namely, quantitative and qualitative.
The qualitative approach in this research is used to study and analyze the strengthening of the human resource capacity of SMEs to work as a determinant of increasing business productivity and labor absorption, which is followed by an interpretation of the meaning of the dynamics of SMEs that develop in the field. The process and meaning are not strictly tested or measured in terms of quantity, quantity, intensity, or frequency. More emphasis is placed on the nature of the social construction of SMEs. Furthermore, a quantitative approach is used to analyze the effect of strengthening human resource capacity, business productivity, technology utilization, and business diversification on the sustainability of SMEs. This information is collected through a survey using a questionnaire instrument. Thus, the data collection techniques used in this study were observation, indepth interviews, questionnaires, and documentation. The results of the data obtained are then discussed qualitatively and quantitatively. The combination of the qualitative and quantitative research in this study is presented in Figure 2.

Study Area
This study was conducted in Makassar City by identifying the presence of SMEs distributed in 15 districts. This study was conducted from February to August 2020. Furthermore, in order to make it easier to obtain data, the location of this study was differentiated based on the types of businesses developed by SMEs actors. The SMEs in Makassar City were divided into several categories, which are (1) culinary businesses, including food and beverage businesses; (2) fashion business, including clothes, shoes, and accessories retailers; (3) business in the technology sector, including website writers, website creation services, social media administrator services, and buyers and sellers of technology tools; (4) cosmetic businesses; (5) automotive business, including buyers and sellers of vehicles and spare parts, and workshops; (6) souvenir businesses, including sellers of traditional clothing, key chains, regional souvenirs, and regional handicrafts; and (7) agribusinesses, including agricultural business, fisheries, and sellers of animal husbandry and agricultural products.
There are 2764 small and medium enterprises (SMEs) in Makassar City and a total of 16,492 business units engaged in various sectors of economic activity [21]. SMEs predominantly develop in the centers of economic activity and new development areas in Makassar City. They are predominantly located in strategic locations and easily accessible in terms of accessibility and population movement. Furthermore, the development trends of SMEs are different in terms of the numbers of workers employed and the use of technology. The results of preliminary observations suggest that the capacity and competence of the human resources and technology used in SMEs are closely related to the type of business being developed and the factor of the capacity of the business capital used. Table 1 shows the small and medium enterprises (SMEs) in Makassar City. The dominant developing SMEs are located in Mariso District, as much as 18.70%, Rappocini District, as much as 14.76%, Bontoala District, as much as 13.78%, and UjungPandang District, as much as 13.17%. Furthermore, 0.18% of SMEs in the Sangkarrang Islands District is the smallest number. These small and medium enterprises (SMEs) are predominantly developing in the centers of economic activity in Makassar City. Thus, the existence of the location of the SMEs is closely related to the system of socio-economic activities, the ease of movement, and the distance from the location of human settlements.

Method for Collecting Data
The data in this study are divided into two categories, namely, primary data and secondary data. Primary data in this study were obtained directly in the field through observation, in-depth interviews, and questionnaires. Meanwhile, secondary data were obtained from various sources in the form of documents related to the potential and profile of SMEs developing in Makassar City. Furthermore, the data collection method is divided into two stages, namely qualitative and quantitative data. (1) Qualitative data were obtained through field observations, in-depth interviews, and documentation. The instrument used in qualitative research is the researcher himself who acts in the data collection process, establishes research focus, and selects key informants as data sources. These data are used to provide an overview regarding the existence of SMEs in Makassar City. The data collection results are then presented in the form of descriptions and categorizations.
(2) Quantitative data were obtained using a questionnaire instrument. These data are used to describe the development of SMEs in Makassar City in relation to business productivity carried out by SME actors. The results of data collection through questionnaires are presented in tables and diagrams.

Observation
Data collection was carried out through observations in this study using instruments, namely, field notes, periodic notes, cameras, and checklists. The aim is to understand the situation, conditions, and characteristics of SMEs in Makassar City. The observations used in this study to trace data include (1) investment development, technology use, and SMEs' business management, (2) shifting of SMEs normative space, (3) rationalization of actions in carrying out SMEs' business activities, and (4) human resource capacity in SMEs. The data obtained through observation are used to compare the characteristics of small and medium enterprises in Makassar City. The results are then linked to the assumptions and theories used in this study. Thus, the observations in this study are aimed at exploring and observing the conditions and characteristics of SMEs that are developing in Makassar City.
In addition, observation is also used to observe SME actors in developing their business activities continuously within a certain period of time, both individually and in groups, in addition to the efforts made to increase business productivity in relation to the capabilities of their human resources, without manipulating and controlling that took place in the field. This process is carried out by recording field findings that allow or qualify for use in interpretation and analysis. Furthermore, the results of the data obtained through observation are used to compare and categorize the types of SMEs that are developing in Makassar City. The aim is to differentiate the adaptability, shifting normative space, and rationalization process of actions by SMEs in responding to changes in the environment. This categorization is carried out in a qualitative manner (low, moderate, and upper) for the purpose of classifying the types of businesses developed by SME actors.

In-Depth Interviews
In-depth interviews in this study were conducted for two purposes, namely, (1) to obtain an overview from informants regarding the efforts of SME actors in developing their business activities and (2) to obtain a description of the characteristics and types of businesses developed by SME actors. The instruments used in in-depth interviews included a tape recorder, camera, and interview guides, equipped with freelance notes and a data checklist. Thus, in-depth interviews that were used in this study to trace data involved (1) the mode of production carried out by SMEs actors, (2) the strength of the production business, (3) production relations, (4) ownership of business capital, (5) production relations, and (6) the technology and investment used. The data obtained through indepth interviews were then categorized (low, moderate, and upper). The categorization is used for interpretation using a qualitative approach. Furthermore, the results of the categorization are used to show the differences in the types of SME businesses and the ways in which economic business management has been carried out in relation to the human resources that are owned and utilized. Thus, the information obtained from informants has a relationship with the productivity of small and medium enterprises (SMEs), only differentiating and without value. This means that these results are not rigorously tested but are used for the purposes of exploration and interpretation.

Questionnaire
The data collected through questionnaires in this study were used for two functions, namely, (1) descriptive, describing the conditions and characteristics of the SMEs that developed in Makassar City and (2) measurement, in this case, referring to the characteristics of the data obtained in the field. Measurement of questionnaire data was conducted using ordinal scales and ratios. The purpose of using the questionnaire is to provide an overview of some of the characteristics of developing SMEs in Makassar City based on the type of business being developed. The questions posed to respondents are divided into two categories, namely, structured, and unstructured. Furthermore, the questionnaire in this study was used to trace data, including (1) the human resource capacity of SMEs was measured using the following indicators: education level, skills and expertise, ability to manage businesses, ability to carry out work, quality of work produced, mastery of technology, and the productivity of the workforce used; (2) the productivity of SMEs was measured using the following indicators: business effectiveness and efficiency, labor productivity, and capital productivity utilized; (3) utilization and mastery of technology was measured by the following indicators: utilization of technology, skills and knowledge, service to consumers, and marketing of products through the use of technology; (4) SMEs business diversification was measured by the following indicators: the complexity of the business being developed, business governance, business performance and business competitiveness, and the marketing of the resulting business products; and (5) SMEs business sustainability was measured by the following indicators: business growth, income level, product quality, competitiveness, and business environment conditions.
Based on the data obtained through a questionnaire, the scale of data measurement in this study is divided into two categories: First, data were measured using an ordinal scale, which in this case, showed categories based on the parameters and indicators used. The category was then given an assessment, namely, 5 for the very supportive category, 4 for the supportive category, 3 for the sufficiently supportive category, 2 for the less supportive category, and 1 for the unsupportive category. Second, the ratio scale in this study was used for the questions posed in the questionnaire, which can be distinguished, sorted, had a certain distance, and allowed for comparison; in this case, it was used to measure the types and characteristics of economic enterprises developed by SME actors. Furthermore, the measurement results of the two scales then produced the quantitative data that were used as the basis for statistical analysis.
Questionnaires were distributed to 15 districts in Makassar City. Furthermore, respondents who filled out the questionnaire in this study were grouped based on the type of business, business status, labor used, length of business, and business productivity. Furthermore, the questions posed in the questionnaire include (1) capacity and competence of human resources used, (2) productivity of small and medium enterprises (SMEs), (3) mastery and utilization of technology used in managing and developing businesses, (4) methods and efforts made in business diversification, and (4) efforts made to maintain business stability and sustainability. Thus, the criteria for actors filling out the questionnaire in this study are (1) small and medium enterprises (SMEs), (2) the type of business being developed, (3) having a business location and employing a workforce of three to five people, (4) being married and having family dependents, and (5) having been in business for five years.

Research Informants and Respondents
Qualitative data were collected from the informants in this study. The informants were determined by snowballing, that is, the researchers determined the SME actors to be interviewed based on information obtained from the SME community association in Makassar City. This means that the key informants selected were actors able to provide good information about the existence of SMEs in Makassar City. The next step was finding out other SME actors that could be interviewed, whose information was obtained from the key informant. The goal was to obtain the same information and pictures of the SME actors. Furthermore, apart from the informants, several respondents who had been interviewed were also identified. The aim was to explore some of the questions answered in the questionnaire that required more detailed explanations. The selected informants were the SMEs that were being researched.
Referring to the snowball method used, the number of informants was 16. Of these, 10 people were non-respondents and 6 were respondents. The 10 non-respondent informants were identified based on information from the SME groups. Based on this information, the base informant was determined; information was then obtained from the base informant to identify the next informant, etc. until 10 people had been selected. Thus, all the informants who were non-respondents were identified through the snowball method. The six informants who were respondents were chosen based on the following criteria: (1) conducting economic business activities, (2) having developed economic relations with other economic enterprises, (3) being able to provide good information about the development and obstacles faced by SMEs, and (4) being able to provide good information about economic relations and the ways in which SMEs reach potential markets. The snowball method used in this study is presented in Figure 3 below.

Option E
The research sample in this study was determined using purposive sampling, based on the conditions and characteristics of the SMEs in Makassar City, which the researchers determined based on certain and specific characteristics, i.e., the sample (respondents) had to be local, residents currently developing economic enterprises, with families, and business actors having run their SMEs for at least five years and with regular consumers. The questionnaire answers were then analyzed using statistics, percentages, and frequencies. Sampling refers to Cohran [117] with the following formulation: where n is the sample size Z² is the confidence level of 95%, d is the desired level of accuracy, p is the estimated proportion present in the population, q is 1-p, and Z is the value obtained in the statistical table containing areas below normal. The appropriate number of samples was determined to be 350. The number of respondents in this study is presented in Table 2 below. Ujung Tanah  8  1  8  Sangkarrang Islands  5  1  9  Mamajang  81  10  10  Rappocini  408  55  11  UjungPandang  364  39  12  Wajo  25  5  13  Manggala  323  24  14  Biringkanaya  63  8  15  Tamalanrea  25 5 Source: Authors' elaboration.

Data Validity and Reliability
The validity of the data in this study was divided into two categories as follows: the First category is the validity of the qualitative data obtained from observations and indepth interviews. The stages of the validation process that are carried out include (1) extension of observations for the purpose of increasing data trust and credibility, which means to examine and deepen information in different situations in order to obtain data for certainty and consistency; (2) increasing persistence for the purpose of obtaining data results that are more accurate and continuous at different situations and times, which is used to obtain data for certainty and sequence of events so that it can be definite and systematic; and (3) triangulation in testing the credibility of the data, which is carried out by checking various sources of data obtained.
Testing the validity of quantitative data in this study was carried out on the results of the data obtained through a questionnaire, which was divided into two categories, namely, the validity of the factors and the validity of the items. Factor validity is measured when items are arranged using more than one factor (there are similarities between one factor and another). Furthermore, the measurement of the validity of the factor is carried out by correlating the factor score (the sum of the items in one factor) with the total factor score (the total of all factors). The validity of the item is indicated by the correlation or support for the total item (total score), and the calculation is carried out by correlating the item score with the item's total score. The results of the correlation coefficient are used to measure the level of validity of an item and determine whether an item is suitable for use. Determination of whether or not an item is used refers to the significance test of the correlation coefficient at the 0.05 significance level, meaning that an item is considered valid if it has a significant correlation to the total score. In this study, variable I is in the form of purely discrete or dichotomic data, while variable II is in the form of continuous data. Thus, the measurement of the validity of the data used is the biserial point correlation technique. The formulations used in testing the questionnaire data validation are as follows: where n is the amount of data or samples, rxy is the correlation coefficient between variable X and variable Y, ∑xiyi is the multiplication between variables X and Y, ∑x²і is the sum of squares of the x-value, ∑y 2 і is the sum squared of the y-value, (∑xі)² is the sum of the xvalue squared, and (∑yі)² is the y-value, which is then squared. After the correlation number is known, the next step is to calculate the t value of r. If t count is greater than t table, it means that the data are significant (valid) and suitable for use in testing the research hypothesis. Conversely, if the t count is less than or equal to the t table value, it means that the data are not significant (invalid) and therefore not included in testing the research hypothesis. Data reliability in this study refers to the degree of stability, consistency, predictive power, and accuracy, that is, a measurement that has high reliability is a measurement that produces reliable data. Reliability shows the extent to which the measurement results can be trusted [118]. The reliability of the data in this study is used to determine whether the instrument used is reliable or not; in this case, the answer given by the respondent is in the form of an ordinal scale, namely, 5 for the very supportive category, 4 for the support category, 3 for the moderately supportive category, 2 for the unsupported category, and 1 for the very unsupportive category. Furthermore, the instrument in the study is said to be reliable if the reliability coefficient ( ) is greater than 0.6. Thus, in the instrument reliability study using the Alpha Cronbach technique. The Alpha Cronbach formulation used is as follows: where is the reliability sought, the resulting α coefficient of reliability ranges from 0 to 1 in providing this overall assessment of a measure's reliability; if all of the scale items are entirely independent of one another (i.e., are not correlated or share no covariance), then α = 0, and if all of the items have high covariances, then α will approach 1 as the number of items in the scale approaches infinity. In other words, the higher the α coefficient, the more the items have shared covariance and probably measure the same underlying concept. n is the number of question items tested, ∑ is the total variance score for each item, and is the total variance. Furthermore, the basis for decision making in the reliability test, namely, (1) if the Cronbach's Alpha value is greater than 0.60, then the questionnaire is declared reliable or consistent and (2) if the Cronbach's Alpha value is less than 0.60, then the questionnaire is declared unreliable or inconsistent.

Data Analysis Method
The data analysis in this study consisted of two stages. Firstly, data were analyzed using a qualitative approach. This meant that the data collected through observation and in-depth interviews were analyzed. Second, data were analyzed using a quantitative approach, that is, researchers collected information on the object of the research using a ques-tionnaire instrument and then analyzed it using quantitative descriptive statistics, correlation, and multiple regression. The data obtained were then subjected to combined qualitative and quantitative analysis. The steps taken for qualitative research were also used for quantitative research. At the time of interpretation and analysis, the data set was reduced by categorization for the qualitative data and statistical analysis for the quantitative data. The two types of data were then subjected to triangulation interpretation; the questionnaire data were explored again through two methods qualitative and quantitative. This combination was to strengthen the validity of the analysis results.

Qualitative Data Analysis
The qualitative analysis in this study was used to answer research questions, namely, strengthening the capacity of human resources for SMEs to work as a determinant of increasing business productivity and labor absorption. Furthermore, qualitative data analysis in this study was carried out during the data collection in the field and after the data collection had been completed. At the time of the interview, the researcher analyzed the answers of the interviewed informants; in this case, the analysis was carried out interactively. Thus, qualitative analysis in this study is divided into three categories, namely, data reduction, data presentation, and conclusion drawing. Data reduction was carried out with the following considerations: (1) the data obtained in the field was quite large, complex, and complicated, and therefore, data reduction and similar data grouping were required for interpretation needs; (2) the results of field findings were then identified and summarized referring to the focus of the study, its aspects, and themes, then the conclusions were formulated based on field facts; (3) the reduced data were then used to provide a clear picture based on the focus and study objectives to be achieved; and (4) data reduction was conducted by providing codes for certain aspects according to the objectives to be achieved in this study.
Qualitative data analysis in this study was carried out in the field and during the data collection process. The activities carried out by researchers were separating information into categories, coding, creating information in a story, and presenting writing qualitatively. Encoding is the process of dividing data into several parts of a classification system [119]. Thus, the data analysis study was conducted using a qualitative approach, namely, domain analysis, taxonomy, components, and analysis of cultural themes.

Quantitative Analysis
The quantitative analysis in this study was used to answer the research question of what is the effect of strengthening human resource capacity, business productivity, technology utilization, and business diversification on the sustainability of SMEs? Multiple regression analysis was used to determine how much influence the independent variables X1 (human resource capacity), X2 (business productivity), X3 (technology utilization), and X4 (business diversification) had on the dependent variable Y (SME sustainability). Thus, multiple regression analysis was used to predict the value of the dependent variable when all the independent variables have known values. The multiple regression analysis model is presented in Figure 4. A multiple variable relationship model with four independent variables-X1, X2, X3, and X4-and one dependent variable, Y, was developed, to determine the relationships of X1 with Y, X2 with Y, X3 with Y, and X4 with Y. Those of X1 with X2, X2 with X3, X3 with X4, and X1 with X4 were determined using a simple correlation technique. The relationship of X1, together with X2, X3, and X4, with Y was determined using multiple correlations. Correlation analysis uses the following formulations: where rxy is the correlation between the x and y values, x is the deviation from the mean for the value of variable X, y is the deviation from the mean for the value of variable Y, ∑ is the number of times the value of x and y, x² is the square of the x value, and y² is the square of the y-value. Furthermore, the model Multiple regression analysis is expressed by the mathematical equation as follows: Y = a0 + a1X1 + a2X2 + a3X3 + a4X4 + e (5) where Y is the dependent variable, X1, X2, X3, X4 are independent variables, constant a0 and coefficients a1, a2, a3, and a4 are obtained from sample data, ε is the error or residue, and R ² is the coefficient of determination.

Determinants of Human Resource Capacity and Productivity of SMEs
The SMEs in Makassar City have a tendency to occupy strategic locations and be located in the centers of commercial activities. SMEs in the manufacturing and service industries play an increasingly important role in economic development. SMEs have the potential to support economic growth and employment [120,121]. The productivity of SMEs in Makassar City is generally still constrained by the low mastery of technology due to the inadequate competence of human resources. Traditionally, it is believed that SMEs lack the ability to adopt and persistently practice social sustainability [122]. Thus, these SMEs, the motors of economic growth, are not yet optimal and sustainable. A role should therefore be played by the government, universities, and companies to build an entrepreneurial ecosystem to promote the entrepreneurial sustainability of SMEs [123].
It was found in the field that the weak mastery of technology by SME actors is influenced by several factors, including (1) the ability and skills of the workforce being relatively low, (2) product marketing remaining focused on meeting local needs, (3) access to information and product marketing through online media remaining limited, (4) the types of products marketed still being limited in relation to business diversification, and (5) products being insufficiently competitive to compete in regional and global markets. These five factors have an impact on the production ability of SMEs in Makassar City in terms of the products produced still being limited. SMEs have socio-economic relevance worldwide and must be prepared to survive and respond to the market's challenges, which sometimes translated into differentiation and innovation capacities [124,125].
The results in the field show several factors that become obstacles to increasing the productivity of SMEs in Makassar City in relation to the capacity of human resources. First, limited business capital means that SME players have not been able to increase the number of goods produced, therefore the benefits obtained are not optimal. Product excellence, market potential, the fulfillment of customers' needs, pre-development, capabilities, and the utilization of resources are factors with significant effects on the performance of a new product [126,127]. The characteristics of business management in SMEs necessary to obtain maximum profit are quite complex because various problems related to complicated combinatorial optimization require the use of many intricate iteration procedures [128]. This study's results illustrate that the lack of business capital for SMEs occurs due to difficulties in obtaining financing capital from formal financial institutions and meeting the requirements set. In many developing countries, obtaining financial services at affordable rates under fair terms has been a significant challenge for SMEs [129]. Second, some SME actors lack experience in business management. This means that SMEs' economic efforts only focus on producing goods but have not considered expanding and diversifying their business ventures. As a result, the businesses that have been developed have not changed significantly. Forms of economic value include profit, return on investment, financial resilience, long-term viability, and the business stability of SMEs [130].
Third, there is a lack of product innovation. In this case, the products produced by SMEs have not been able to compete in regional and national markets due to their low quality and competitiveness, only meeting local needs. Innovation can involve different types of change and depends on the organization's resources, capabilities, strategies, and requirements [131]. Fourth, there are difficulties in distributing goods. In this case, SMEs have not been able to build business networks through the use, of information technology. The entrepreneurial business network provides a platform for building business relationships; identifying, developing, or acting upon economic opportunities; sharing information; and seeking potential business partners for ventures [132]. This study found that SME actors in Makassar City only focus on distributing goods to certain partners and collectors whose reach is not yet wide and dominant only on a local scale. This is due to the suboptimal creativity of the SME actors. Creativity is an important element of entrepreneurship in the sense that individuals must be creative to identify and take advantage of opportunities [133]. Fifth, SME players have not been able to utilize and optimize online marketing for the products they produce; therefore, the distribution of goods is limited and has not reached potential markets. SMEs are very important for meeting market needs and should adopt sustainable marketing as part of business strategies for the purpose of providing long-term benefits in the social, economic, and environmental dimensions [134].
Sixth, SMEs do not take advantage of branding because they do not understand the importance of branding for the products they produce and the businesses they develop. The brand congruence of a business builds trust and commitment and influences the economic behavior of consumers toward an item [135]. This study found that most SME players in Makassar City only focus on selling and have not thought about the quality of their product brands. The components of ethical marketing include product, price, place, and promotion with an ethical consideration of the brand-consumer relationship and perceived product quality in a transaction [136]. Seventh, the SMEs in Makassar City have not been able to implement customer loyalty programs, in this case, related to member registration, customer communities, and regular promotions. The survival of SMEs relies on innovation and organizational culture, which are important components for realizing product innovation goals [137].
Eighth, the dominant SMEs still rely on manual bookkeeping. It was found that manual bookkeeping by SME actors is very vulnerable to damage, loss, and mistakes in recording sales. The sales reporting systems and business managements are still traditional. It is very important for SMEs to use modern methods of management, making decisions in an environment of uncertainty while taking advantage of limited resources [138]. Furthermore, to remain competitive, SMEs must secure and maintain technology; a business needs to stay informed about future technology while developing a maintenance and asset replacement strategy [139].
The findings in the field illustrate that the rationalization of the actions of SMEs in Makassar City in relation to the use of technology and human resource competence shows differences based on the type of economic business being developed. The adaptation and rationalization of the actions of SMEs in Makassar City, based on the type of business, are presented in Table 3. Table 3. Comparison of adaptation processes, shifting normative spaces, and rationalizing processes for SMEs' actions. There are several possible interpretations for these results, such as the following. First, human resource capacity, business productivity, and employment are closely related to developments in investment, technology, and business management. The production procedures in fashion and cosmetic businesses are categorized as effective; this is influenced by investment support, technology, and management. Furthermore, the efforts made by SME players in the fashion business are building investment cooperation networks based on economic motivation and developing possible business opportunities. This means that SME business actors in the fashion sector have the ability to build business cooperation, including the use of technology, when compared to other SMEs. Open innovation (open flows of knowledge regarding market needs and the potential of technologies, in addition to collaboration with customers) is a concrete precondition for business model innovation [46]. Sanderson [140] states that technology is a tool, technique, and form of knowledge possessed by members of society and is used in fulfilling the necessities of life and economic activities that cannot exist without technology, but the economy is something greater than the level of technology.

Adaptation of Economic Enterprises and Rationalization of the Actions of SMEs Culinary Fashion Cosmetics Agribusiness Souvenir Automotive
In the culinary sector, investment, technology, and management development are categorized as low. This is influenced by the ability of SMEs to access very limited sources of venture capital. Likewise, the investment network built is also very limited, and the mastery of technology is still relatively simple. This means that the economic business patterns developed tend to be simple and only aimed at meeting the needs of local consumers, making them less adaptive in response to stimuli for environmental change. Thus, business protection and innovation are needed in SMEs to attain sustainable business management [141]. Furthermore, agricultural, souvenir, and automotive businesses are categorized as medium in development. This is influenced by three main factors-(1) the difficulty in procuring raw materials, (2) the limited skills and abilities of the workforce, and (3) inadequate production reserves. The three types of business are relatively stagnant in terms of business development and profits. Information technology plays a vital role in improving the productivity and competitiveness of SMEs. The dynamic business environment has brought fierce competition among SMEs and, therefore, requires the owners to actively interact with internal and external members [142,143].
Second, the shift in the normative space for SMEs in Makassar City shows a difference in terms of production procedures. The shift in the normative space in the fashion, cosmetics, souvenir, and automotive businesses is categorized as moderate. This study finds that the mechanisms, production procedures, and work systems of the four types of businesses are contractual and collective, based on the efforts made to reach a certain position. The ability and position that can be realized are largely determined by the adaptive capacity of each individual workforce. Furthermore, in culinary and agricultural businesses, the shift in the normative space shown is categorized as low. This is due to the influence of values and traditions that are still inherent and quite strong, and hence the principles of togetherness are still characteristic of the SMEs developing their business. This means that expertise and skills are not the basis for the development of economic enterprises. Additionally, the positions and statuses of the workers employed are relatively similar.
Third, the adaptation process of SMEs is followed by the rationalization of actions by each SME actor. (1) For the fashion and souvenir businesses, the rationalization of actions is categorized as high; (2) the cosmetic and automotive businesses are categorized as medium; and (3) the culinary businesses are categorized as low. The differentiation of the rationalization of actions of the small and medium business actors is based on the motivation of each business in its efforts to maintain its existence and achieve prosperity. In a contemporary complex and competitive business environment, the adaptation of appropriate strategies is particularly important for furthering the development of companies in the SME sector [144].
Fourth, the human resource capacity of small and medium enterprises (SMEs) illustrates that culinary, agribusiness, and souvenir businesses are categorized as low, while clothing, cosmetics, and automotive businesses are categorized as medium. These results indicate that the small and medium enterprises that are developing in Makassar City have not been optimal in increasing the productivity of SMEs. Field facts that are found illustrate that the human resource capacity of SMEs is categorized as low. This means that the ability and competence of employees, leadership, and business management are still carried out traditionally. Limited knowledge, limited mastery of technology, and traditional business management will hinder innovation, creativity, and business productivity [145]. Furthermore, the differences in the mode of production and the SMEs' economic business management system are presented in Table 4 below. Table 4. Differences in production modes and SME business management.

Mode of Production
Relatively simple and tends to be traditional; the use of technology is very limited.
Simple move towards the use of modern technology.
Production Power Family as a production force and business unit.
Companies and business units as production forces, however, are still limited.
Production Relations Local context and very limited. Local and regional in character through the production network and business relationships.
Ownership of Business Capital Individuals and families. Individuals in family business groups.

Type of Production Relationship
The employer-worker relationship is egalitarian.
The employer-worker relationship is egalitarian and moving towards the transitional (contractual) type.
Technology and Investment The use of technology is simple and has not been aimed at efficiency but is more of a service nature. The capital used is very limited.
The use of technology is simple and moving towards the use of modern technology. The use of a limited amount of investment includes the utilized business capital. Source: primary data and analytical results. Table 4 shows the production and management procedures for SMEs. There are substantial differences between the six distinct categories. There are three important categories that show the most basic distinguishing elements-the forces of production, production relations, and the use of technology and investment. Possible interpretations for these results include the following. (1) the power of production determines the pattern of production relations among SMEs; therefore, the power of production is important in business management; (2) the relationship between the production processes in medium-sized enterprises shows a pattern of cooperation in the production business leading to profit creation; (3) the ability to acquire business capital and develop business networks in medium-sized enterprises is shown through the cooperative relationship between production elements and the capital turnover system in relation to business development; and (4) small businesses are characterized by very limited capital ownership, including local production relations, and are susceptible to market fluctuations. Thus, government policy becomes an important element in the development of SMEs, which includes promotional activities, innovations, and the optimization of small business enterprises [146].

Human Resource Capacity and Business Sustainability of SMEs
Human resources play an important role in business development and the productivity of economic enterprises. Increasing the productivity of SMEs in relation to human resource competence is a key factor for their success and performance. Furthermore, the business environment tends to change in both micro and macro fashions, requiring SMEs to be able to respond, be dynamic, and be able to adapt to changes in the strategic environment. The responsibility of SMEs is shown by their ability to make changes through developing and improving the quality of the workforce employed. The need to contribute to society, both socially and environmentally, and maintaining financial profitability has slowly become a focal point for businesses [147]. The capacity and competence of SMEs in Makassar City is presented in Figure 5 below.  Interpretations that can be put forward in connection with these results are as follows: (1) the education levels of SMEs are as follows: 27.4% very supportive of the development of SMEs, 18.3% were supportive, and 54.3% were not supportive; (2) regarding the skills and expertise of the workforce utilized by SMEs, 25.1% were included in the very supportive category, 20.9% supportive, and 54% were not supportive; (3) for the ability to manage SMEs businesses, 29.1% were included in the very supportive category, 18.3% supportive, and 52.6% not supportive; (4) regarding the ability to manage the work and duties of employees, 30.8% were in the very supportive category, 17.7% supported, and 51.4% not supportive; and (5) the quality of work of SMEs showed that 31.5% were in the very supportive category, 19.7% supportive, and 48.8% not supportive. Therefore, it is necessary to make efforts to empower SMEs in Makassar City through strengthening the capacity of human resources to increase the productivity of economic enterprises in a sustainable manner. Sustainable entrepreneurship, based on the principles of sustainable development, also includes social sustainability, expressed in personnel policy, which includes management and care for all employees [148]. The productivity of the SMEs in Makassar City is presented in Figure 6. These results can be interpreted as follows: (1) the productivity of SMEs in relation to business effectiveness and efficiency showed 28% in very supportive categories, 24.3% in supportive categories, and 47.7% in not supportive categories; (2) labor productivity in relation to business productivity showed 25.1% in very supportive categories, 18% in supportive categories, and 56.9% in not supportive categories; (3) the utilization of business capital in relation to increasing the business productivity of SMEs showed 26.3% in very supportive categories, 21.1% in supportive categories, and 52.6% in not supportive categories; and (4) the productivity of business capital in relation to increasing the business productivity of SMEs showed 22.3% in very supportive categories, 21.1% in supportive categories, and 56.6% in not supportive categories. Thus, it can be concluded that SMEs in Makassar City still need guidance and assistance to increase the productivity and stability of economic enterprises in a sustainable manner. It is, therefore, necessary to increase support for SMEs, including in financial management, production, business management, and market access [149]. Furthermore, missions, visions, and strategies are very important in supporting SME economic enterprises to maintain business sustainability in the long term [150]. The use of technology by SMEs in Makassar is presented in Figure 7 below.  (2) the skills and knowledge of SME actors showed 20.9% in very supportive categories, 21.7% in supportive categories, and 57.4% in not supportive categories; (3) the business promotion carried out by SME actors showed 15.2% in very supportive categories, 16.3% in supportive categories, and 68.5% in not supportive categories; (4) consumer confidence in the resulting products showed 34.4% in very supportive categories, 20.6% in supportive categories, and 45% in not supportive categories. Thus, it can be concluded that the inability to master technology, limitations in business management, and the lack of promotions carried out have positively contributed to the weak consumer confidence in the products of SMEs and suboptimal business productivity. In particular, SMEs will need access to technology that is easy to implement and fits the characteristics of the SMEs but compatible with the overall approach [151]. The diversification of SME businesses in Makassar City is presented in Figure 8 below.  (2) the business governance of SME actors showed 19.4% in very supportive categories, 18% in supportive categories, and 62.6% in not supportive categories; (3) business performance in relation to the business productivity of SMEs showed 20.6% in very supportive categories, 15.4% in supportive categories, and 64% in not supportive categories; (4) the business competitiveness of the products produced showed 13.7% in very supportive categories, 12% in supportive categories, and 74.3% in not supportive categories. Thus, it can be concluded that the dominant SMEs in Makassar City have not been able to manage their businesses effectively, and hence the business competitiveness of the products produced is still low; training and coaching efforts are needed to foster creativity and sustainable business innovation. Changes in business patterns, independence, supplier closeness, and optimization of customer service are needed to create a sustainable SME business [152]. Furthermore, the business continuity of SMEs is presented in Figure 9 below.  Figure 9 shows the business sustainability of SMEs in Makassar City. Interpretations that can be proposed in relation to these results include (1) business growth obtained an overview of 26.29% with the supportive category, 17.4% with the supportive category, and 56.57% with the not supportive category; (2) the level of business income obtained an illustration of 25.15% with the supportive category, 20% with the sufficiently supportive category, and 54.85% with the not supportive category; (3) the quality of the resulting product obtained an overview of 27.15% with the supportive category, 20.86% with the sufficiently supportive category, and 51.99% with the not supportive category; (4) the business competitiveness obtained a picture of 24.86% with the supportive category, 17.43% with the sufficiently supportive category, and 57.71% with the not supportive category; and (5) the business environment obtained an overview of 50% with the supportive category, 28% with the sufficiently supportive category, and 40% with the not supportive category. The five categories measured indicate that business continuity toward business stability in SMEs is not optimal. Field facts found indicate that human resources in terms of capacity, competence, and mastery of technology are quite low, as well as limited business capital and inability to access potential markets have a positive correlation to the stability of small and medium enterprises (SMEs) in Makassar City. Business competition tends to increase especially against large and modern competitors, placing SMEs inside a vulnerable position due to the traditional business management system in production and marketing [153,154]. The effect of strengthening human resource capacity, business productivity, technology utilization, and business diversification on the sustainability of SMEs is presented in Table 5 below.  Table 5 shows the effects of strengthening human resource capacity, business productivity, technology utilization, and business diversification on the sustainability of SMEs in Makassar City. It can be inferred from these results that (1) human resource capacity; (2) the use of technology; (3) business diversification; and (4) strengthening human resource capacity, business productivity, technology utilization, and business diversification all have a positive correlation to the sustainability of SMEs. Thus, it can be concluded that the effect of strengthening human resource capacity, business productivity, technology utilization, and business diversification explains 72.3% of the sustainability of SMEs in Makassar City.

Strengthening the Capacity and Competence of Human Resources in SMEs
In terms of the ability to master technology, business management, business innovation and diversification, and the ability to access broader potential markets, the human resources of the SMEs in Makassar City are still very limited and could be improved in capacity and competence. Thus, a process of business mentorship and training is needed to realize economic empowerment promoting the sustainability of SME economic enterprises. Human resource management covers the various activities needed to ensure the economic sustainability of SMEs [155]. Furthermore, several actions and strategies are needed to encourage the increased productivity of the SMEs in Makassar City, including (1) reviewing and evaluating the business processes developed by SMEs for economic diversification; (2) improving the governance and economic management of SMEs; (3) improving the expertise and skills of the workforce regarding the mastery of technology; (4) optimizing the use of business capital to make production more effective and efficient; (5) identifying consumer needs and improving the innovation and creativity of SMEs actors to allow them to reach a broader potential market; and (6) increasing business productivity and the quality of the products and their packaging to increase their competitiveness. There are different drivers in society that are relevant and warrant the attention of professionals and decision makers, such as sustainability, digital transformation, innovation, and entrepreneurship [156].
The strengthening of the capacity and competence of the human resources of SMEs in Makassar City will require the following support in action and policy from the government: (1) the provision of business mentoring in the form of training and workshops for SME workers; (2) providing opportunities for liaison with university resources, in this case, utilizing the results of higher education research to improve resource utilization and technological mastery; (3) skill and managerial development through technology strengthening cooperation; and (4) training in business management based on strengthening the organizational capacity and leadership of SMEs. Furthermore, strengthening the capacity and capability of SMEs in terms of their human resources to increase their competitiveness in production and subsequent reach to potential markets will require various forms of support, including (1) increasing access to finance through the government, banks, and non-bank institutions; (2) increasing investor networks and support for issues encountered in running businesses including SMEs; (3) effective business promotion based on information technology systems through partnerships with potential investors; and (4) financial management assistance to SMEs to help them to run their businesses effectively, efficiently, and accountably.

Business Stability and Sustainability of SMEs
Government support for increasing the productivity of SMEs in Makassar City will have an impact on the stability of economic enterprises. The competence of human resources based on human capital is very important to consider as the lifeblood of an organization, and human capital is a crucial resource for innovating and developing an organization [157]. The strategic steps needed to achieve business stability and economic sustainability for the SMEs in Makassar City include (1) establishing business independence and strengthening the capacity of the workforce, management, and leadership; (2) build cooperation and networks among SME players through mutually beneficial information exchange processes; (3) the management of business finance to increase productivity and business innovation; (4) technology-based financial management to facilitate efficient corporate financial allocation; (5) the provision of additional business capital through the support of formal, non-formal, and government financial institutions; (6) enhancing the managerial and personal capabilities of SME actors and ensuring adequate workforce competence in the mastery of technology and information; and (7) building business partnerships through government policy support for enabling SMEs to reach potential markets and become more sustainable.
The sustainability of the SMEs in Makassar City will also require several forms of support, including (1) government cooperation with SMEs and private actors who build and develop training and information centers based on joint production houses oriented towards the research and development of potential products for SMEs; (2) helping the managers of SMEs to establish a work contract system based on improving the quality of labor resources and guaranteeing work safety; (3) training in the management of SMEs in the industry to improve the quality of leadership; and (4) improving the quality of the workforce through rewards and punishments. These four factors-in addition to increasing productivity, business innovation, the mastery of technology, and product assurance for consumers-will have an impact on the business stability and business sustainability of SMEs. Sustainability in the context of the business world refers to a company's ability to survive and succeed in a dynamic, competitive, and challenging business environment [158]. The business continuity of SMEs in Makassar City is presented in Figure 10.

Conclusions
In general, the productivity of SMEs in Makassar City is still constrained by limited mastery of technology, product innovation, and product marketing. This condition occurs due to the low human resource capacity and due to limited access to business capital from formal financial institutions. As a result, the economic enterprises developed by SMEs do

Performance of
SMEs not experience significant changes. The capabilities and limitations of human resources and the inability of SMEs to utilize technology in relation to online-based product marketing and limited product innovation, in addition to traditional business management, are inhibiting factors in increasing the productivity and profitability of the business being developed. Thus, government policy support is needed in the form of actions and strategies to encourage increased productivity of SMEs in Makassar City. The actions and strategies required include (1) evaluation of business processes developed by SME entrepreneurs toward business optimization and diversification of economic enterprises; (2) business governance fostering, which is carried out continuously; (3) increasing the capacity of SME resources, expertise, and skills of the workforce through training, followed by mastery of technology; (4) optimizing the use of business capital toward the effectiveness and efficiency of production; (5) identifying consumer needs through developing innovation and creativity for SME actors to be able to reach a wider potential market; and (6) increasing business productivity, followed by an increase in the quality of SME products and their packaging in the direction of increasing product competitiveness. Furthermore, in order to optimize the strengthening of the capacity, capability, and competence of SME human resources toward increasing production competitiveness and potential market access, government policy support is needed, including (1) increasing access to finance facilitated by banks and non-banks; (2) building investment cooperation to support SME business development; (3) promotion of effective information technology-based businesses through partnerships with investors; and (4) assistance in financial management for SMEs in order to run their business effectively, efficiently, and accountably.
Increasing the productivity of SMEs in relation to strengthening the capacity of human resources is a key factor for the success and performance of SME entrepreneurs. Thus, efforts are needed to empower SME business actors towards increasing productivity and business stability in a sustainable manner. Furthermore, the inability and weak mastery of technology, limitations in business management, and the lack of promotional activities carried out by SMEs have contributed positively to the weak consumer confidence in the products they produce. Thus, the strategic steps needed to support this include (1) building business independence through strengthening the capacity of the workforce, optimizing business management, and leadership; (2) building a cooperative network among SME entrepreneurs through mutually beneficial information exchange processes; (3) management of business finances to increase productivity, followed by business innovation; (4) technology-based financial management to utilize financial allocations effectively and efficiently; (5) support for additional venture capital through formal, non-formal, and government financial institutions; (6) increasing the managerial and personal capabilities of SMEs players, in addition to increasing the competence of the workforce in mastering online-based information technology; and (7) building business partnerships through government policy support to assist SMEs in accessing potential markets in a sustainable manner.
The sustainability of small and medium enterprises (SMEs) in Makassar City will require assistance, including (1) cooperation between the government and SMEs and the private sector to build and develop training and information centers based on joint production houses that are oriented toward research and development of products UKM that can be managed collectively; (2) assisting the management of SMEs toward the development of a work contract system that is oriented toward improving the quality of labor resources and ensuring work safety; (3) improving SME management through training in the industry to improve leadership quality; and (4) improving the quality of the workforce through performance appraisals based on reward and punishment. Thus, the new outcomes from this research emphasize that strengthening the capacity of the human resources of SMEs through the support of government policies, coupled with the ability to use technology, will encourage increased business productivity, business diversification, and the economic sustainability of SME entrepreneurs.
Because the study was carried out in a limited scope, only considered a few parameters and variables for testing, and was focused on strengthening the capacity of human resources to increase the productivity and sustainability of small and medium enterprises (SMEs) in Makassar City, it is recommended that the next researchers conduct more studies on (1) SMEs business development models based on the utilization of natural resources and (2) optimizing the role of SMEs in regional and urban economic growth. Both studies are intended to complement the results of this study.

Data Availability Statement:
We fully support open scientific exchange through MDPI in sharing and archiving research data from this study. We fully comply with the provisions that have been set by referring to the established journal guidelines.