1. Introduction
Sustainable business models are increasingly recognized as a crucial component of business management in the global marketplace [
1]. These models have gained considerable popularity in theory and practice given the increasing competitive pressures, the rapidly changing situation in many industries and, accordingly, the need to find new ways to be present in the global marketplace [
2]. Sustainable business models are not only important for enterprises, but also for not-for-profit organizations and social enterprises, as they can guarantee their survival. According to R. McGrath [
3], the business model concept offers strategists an innovative way to consider the available options for action in an uncertain and rapidly changing environment. It has also been recognized that to remain competitive in the long term, companies should use multiple business models, as using just one may not ensure their future survival [
4].
Although environmental and social issues have been of interest to researchers since the 1960s, there is no established theoretical basis in economics and management science, and there is a lack of clarity, conceptual consensus, and consistency in the use of the term “sustainable business models” [
5]. There is also no agreement on the definition, categorization and boundaries of this concept [
6]. However, the necessity to develop sustainable models is recognized because of their vital importance to businesses’ sustainability. Research conducted by S. Schaltegger, G. Hansen, and F. Lüdek-Freund [
7] has indicated that companies that have implemented sustainable practices tended to perform better financially than companies that did not [
7]. In addition, a literature review by M. D. T. De Jong, K.M. Harkink, and S. Barths [
8] found that companies with sustainable practices had a lower capital cost and were characterized by a greater ability to attract and retain customers and employees. The literature also emphasized that the development of sustainable business models can have a positive impact on the competitiveness of international companies [
9]. Research indicates that there are numerous business models, each of which may be sustainable or not. This is determined by the extent to which companies incorporate TBL activities into the strategy adopted [
10].
The issue of sustainable business models has appeared many times in research conducted in recent years. The concept of Sustainable Development is gaining importance in the business world and its implementation in enterprise strategies is becoming more and more common, taking the form of sustainable business models. However, their research so far is limited in scope. The selection criterion for research is usually the territory in which the surveyed enterprises operate, the sector or industry in which they operate, the form of ownership, or the processes specific to the surveyed enterprises. An example of research determined by territorial scope is research on international enterprises [
11]. An example of research limited to one sector or industry may be research on enterprises operating in the construction [
12], energy [
13], or telecommunications [
14] industries. An example of research conducted using the form of enterprise ownership criterion is research on family enterprises [
15]. Researchers of sustainable business models sometimes limit their research interests to selected processes specific to the studied enterprises. The aim of such research is to identify and categorize practices that fall within the area of a given process. An example of this may be the study of activities in supply chains in terms of their environmental, economic, and social sustainability in small- and medium-sized enterprises in Jordan [
16].
A review of the research on sustainable business models shows a somewhat fragmented picture, serving as an inspiration for the authors to undertake more comprehensive research. The research conducted on a nationwide sample of enterprises operating in various sectors (production, trade, services) aims to create a more complete and holistic picture of the application of sustainable business models in one country. This perspective allows for the possibility of broader implications for education and business practice.
The research problem addressed in this paper is the analysis of sustainable development measures in 231 large, medium, and small Polish enterprises operating in the industrial, commercial, and service sectors, which will allow for the extent to which sustainable business models are used by the companies surveyed to be determined.
The article aims to present the concepts and elements of sustainable business models in the context of literature research and to analyze the development of sustainable business models in small, medium, and large enterprises operating throughout the country.
The article is structured in six parts. The first part is an introduction to the article. Part two presents the theoretical framework of the research, including sustainable business models with their dimensions—economic, social, and environmental. The TBL concept is also discussed. The third part describes the methodology, including the aim of the research and the research questions, the research tool, the research group, and the statistical methods used in the analysis of the results obtained. The fourth part presents and analyzes the research results. The fifth section presents a discussion of the results and their implications as well as research limitations. The sixth and last section presents conclusions and directions for future research.
3. Materials and Research Methods
3.1. Research Issues
The research issue addressed in this article is to examine sustainability measures in small, medium, and large Polish enterprises operating in the industrial, commercial, and service sectors. It will allow us to determine the extent of sustainable business models used by companies.
The conceptualization of sustainable business models was based on the assertion that, in the long term, they involve proactively managing value creation, both financial and non-financial, for the different stakeholder groups and providing opportunities to meet the current and future needs of all market participants. The dimensions of sustainable development expressed by the TBL concept—economic, social, and environmental—were taken as the research frames. The following questions were posed in the research:
3.2. Research Tool
The survey used a diagnostic survey method with an online questionnaire. This methodology allowed for a representative sample of enterprises, increasing the reliability and generalizability of the results. In preparing the survey questionnaire, inspiration was drawn from the tool constructed by M. Fryczyńska, H. Kinowska, and A. Lulewicz-Sas [
68]. The questionnaire consisted of four parts:
A set of questions related to the economic aspect of sustainable development—7 questions
A set of questions related to the environmental aspect of sustainable development—7 questions
A set of questions related to the social aspect of sustainable development—7 questions
A set of questions about the company and the demographic characteristics of the respondents (company size, industry, respondent’s position).
Table 1 presents, in summary form, the content of the individual items that relate to the activities undertaken in the company.
The questionnaire used a seven-point Likert scale, the extremes of the scale being “definitely no” (1) and “definitely yes” (7). The internal consistency of the questionnaire was assessed using Cronbach’s alpha coefficient, which was 0.97.
3.3. Research Sample
The questionnaire was concerned with sustainable business models used by enterprises (researched objects). Therefore, it was assumed that the respondents should be people occupying positions within the company structure that provide access to such information. The following individuals were considered: chairman, board member, director, manager, and HR manager. The research was conducted on a sample of 231 different-sized enterprises (
Table 2). The sample was obtained commercially, by the specialist research agency Nationwide Research Panel Ariadna, which surveyed a nationwide sample of businesses in late 2022/2023.
3.4. Analysis Procedure
An exploratory factor analysis was used to answer the research questions formulated, which identified latent variables representing hidden patterns and relationships in the data. Exploratory factor analysis using the maximum-likelihood method with varimax rotation and imposed number of factors was conducted on 21 items. It was preceded by the Kaiser–Meyer–Olkin (KMO) test. Based on this, the overall measure of sampling adequacy (MSA) was found to be 0.94 and the KMO for individual items to be between 0.89 and 0.97. Based on Bartlett’s test, the correlation matrix was determined not to be an identity matrix (p < 0.05), making the data suitable for factor analysis.
In the first step, the factor analysis was conducted with an imposed number of one factor, assuming that there was a univariate model that would allow a high level of all items, which would be equivalent to achieving an equilibrium between them.
The analysis conducted on the univariate model showed that the percentage of explained variance was far too low to consider the model adequate for the relationship under study. The percentage of explained variance by a single factor in each business category is presented in
Table 3.
As the percentage of explained variance for the entire surveyed group of companies and for each of the subgroups mentioned appeared to be small, a scatter plot analysis was conducted in the next step, and the Kaiser criterion was used for the entire surveyed group. They indicated the validity of a two- or three-factor solution (
Table 4). Also, the chi-squared test value (
Table 5) indicates a better fit of such models to the data.
As the three-factor solution was characterized by a higher percentage of explained variance and a lower chi-squared test value (
p-value statistically significant), therefore the three-factor solution was also used in further analyses relating to individual company categories. Depending on the company size, it allowed for 64 to 71% of the total variance to be explained (
Table 6).
All analyses were conducted using the psych package.
4. Research Results
The factors distinguished throughout the surveyed group of companies are presented in
Table 7.
Factor 1 comprised 11 items that were used to diagnose the companies’ activities in the economic (items 2; 3; 4; 6; 7) and environmental (16; 17; 18; 19; 20 and 21) dimensions. Factor 2 consisted of 8 items classified in the questionnaire as economic (1; 5), social (10; 11; 12; 13; 14), and environmental (15) dimensions. Factor 3 consisted of two items (8; 9) originally assigned to the social dimension.
Also, concerning the different categories of companies (small, medium, large), three factors were identified. However, after analyzing them, it became apparent that item 8 was not classified under any of the factors in small companies due to its very low loading. Therefore, further analysis was already conducted without this item, which further increased the percentage of explained variance to 0.65, 0.72, and 0.71, respectively. Moreover, each variable was strongly correlated with only one factor. The factor loads for the three factors after the removal of item 8 are presented in
Table 8.
After removing item 8 in the small business group, factor 1 combined 11 items from the economic (2; 3; 4; 6; 7) and environmental (16–21) dimensions. Factor 2 consisted of nine items, including six from the social dimension (9–14), two from the economic dimension (1; 5), and one from the environmental dimension (15). Factor 3 was not identified in this group.
In the group of medium-sized enterprises, thirteen items from the economic (2–7) and environmental (15–21) dimensions were classified under the first factor. Factor 2 included five items, four from the social dimension (11–14), and one from the economic dimension (1), while factor 3 consisted of two items from the social dimension (9–10).
Factor 1 for large companies combined eleven items, including five from the economic (2–4; 6–7) and six from the environmental dimension (16–21). Factor 2 combined six items, four from the social dimension (9; 11–13; 15), and one each from the economic (5) and environmental (15) dimensions. Factor 3 contained three items including two from the social dimension (10; 14) and one from the economic dimension (1).
5. Discussion and Implications
5.1. Results Discussion
The surveyed companies integrated TBL dimensions in varying manners, depending on the perception and interpretation of economic, social, and environmental activities. In small businesses, activities with an economic and environmental dimension are seen as one large activity category. The second can be described as social in a broad sense. In medium-sized and large companies, alongside the social dimension, there is also an aspect that is more oriented towards the employee as a human being, with his or her specific needs. This aspect can be described as psychological. It is present in both categories of companies, although partly differently perceived.
One of the elements of sustainable business models is sustainable human resource management. Research on this topic was conducted by M. Fryczyńska et al. [
68], who focused on connecting individual dimensions (economic, social, environmental, ethical) of sustainable human resources management. The authors found that the economic, social, and ethical dimensions form a whole, while the environmental one is perceived as separate. This is partially inconsistent with the results of the presented research, in which individual dimensions co-occurred within the identified factors. However, the comparison of results has a limited scope due to the differences in the research sample and the distinguished dimensions of sustainability.
The results of the conducted research indicate that all surveyed enterprises use sustainable business models, but those models are slightly differently structured. Similar conclusions with regard to two categories of enterprises (small- and medium-sized enterprises) were reached by the authors of other studies, conducted on a sample of 100 small- and medium-sized enterprises operating in the Silesian Voivodeship in Poland [
69]. However, different research methodology applied in the research did not allow for a direct comparison of the importance of individual dimensions of sustainable development. The research presented in this article focused on the (inter-)connections and ways of integrating individual dimensions, while the mentioned authors focused on determining the degree of their implementation in enterprises.
With regard to large enterprises, the presented research can be compared with research conducted on a sample of the 30 largest companies from the Warsaw Stock Exchange—the WIG 30 index [
70]. Using the content analysis method and the Likert scale, the scope and quality of the information provided in the reports were examined. These studies also revealed the application of sustainable business models by companies. The reporting methods reflect the differences in practiced sustainable business models. Also, in the case of this study, due to the different methodologies, a more detailed comparison of the results was not possible.
Other research in Poland has also indicated only partial sustainability of companies’ activities. According to research conducted in 2022 on a nationwide sample of large companies, there is a gap between declarations (90% of researched companies) to conduct Environment, Social, and Governance (ESG) activities and their actual implementation (67%). Only 48% of companies have translated the objectives of the sustainability strategy into individual company areas. The survey results also indicate a disproportion in companies’ approaches to various aspects of ESG. During the period covered by the survey, 27% of companies did not include objectives related to tackling environmental change in their strategy for the next 2–3 years, compared to only 13% for financial objectives and 16% for corporate governance. This may indicate a partial lack of consistency and coherence in planned activities [
71]. This is also confirmed by research conducted on a sample of companies of different sizes operating in the Podlaskie Voivodeship (Poland) [
72].
The results obtained in the presented research are partially consistent with the results of other studies related to sustainable business models applied in Polish enterprises. However, unlike most of them, this research focused on the structure of the business models used and not the degree of implementation of their individual dimensions. Thus, examining the structure of sustainable business models fills the existing research gap in the Polish literature on the subject. The study of sustainable business models has implications both for education and for business.
5.2. Academic Implications
Knowledge about sustainable development and business ethics is important for a student’s future professional career, which proves the importance of education for sustainable development. Meanwhile, there is a lack of effective implementation of the principles of sustainable development in teaching processes [
73]. Therefore, higher education institutions should be expected to systematize the existing knowledge about sustainable development and include its elements in their educational processes. The first step is to realize that there exists a natural hierarchy between nature, society, and the economy. As such, it requires an appropriate hierarchy of moral, social, and economic values in the management of sustainable organizations. This indicated the necessity to include axiological content in educational programs. The next step is to select appropriate teaching methods. This is what constructivist pedagogy offers, referring to activating methods that shape the ability to apply knowledge in practice [
74]. For this purpose, the educational potential of business games and learning via online platforms can be used [
75,
76]; hence, taking advantage of the role of digitalization in creating future managers’ attitudes towards sustainable development.
5.3. Managerial Implications
Effective performance of managerial roles in organizations using sustainable business models requires knowledge of the level of advancement in sustainable development practices and the ability to implement and monitor them. This means the need to develop appropriate methods, tools, and procedures to continuously obtain information on the maturity of the model used. One such tool may be the questionnaire used in the present research.
Running a business based on a sustainable model requires specific intellectual capital from managers. This applies, in particular, to green intellectual capital, which has a positive impact on sustainable business results [
77].
5.4. Corporate Policy Recommendations
Since the application of sustainable business models offers companies a competitive advantage, it is necessary to introduce the principles of sustainable development into the company’s strategy. This requires that the company sets the principles leading to achieving the goal of a sustainable organization. The research conducted among small, medium, and large enterprises offers guidance on what direction to pursue, what goals to set and what tools to use to achieve them. Digital transformation has turned out to be helpful in this respect, as it has a positive impact on the innovation capabilities of enterprises thus indirectly contributing to their sustainable development [
78].
5.5. Research Limitations
The research conducted has certain limitations. Firstly, there is the geographical scope limitation as the survey focuses on enterprises operating in Poland. Secondly, the survey method is based on the subjective responses of respondents. Despite efforts to ensure the sample is representative, not all sectors of the economy were equally represented in the survey, which may affect the picture of the implementation of sustainable development principles in Polish enterprises. Another limitation is the size of the research sample. This limits the possibility of generalizing the results to all small, medium, and large enterprises operating in Poland and other countries with different economic and social conditions.
6. Conclusions and Directions for Future Research
The TBL model turned out to be useful for the empirical verification of the type and effectiveness of enterprise activities undertaken for sustainable development. It allowed for both the diagnosis of the level of implementation of individual practices in the area of each TBL dimension and the creation of business models on its basis that facilitate the implementation of sustainable development goals.
The TBL model that was applied to Polish enterprises allowed for the distinguishing of the three factors into which their activities were grouped. Factor 1 could generally be called “green economy”, because all activities concerned, to a greater or lesser extent, environmental issues while often considering economic calculation in their pursuit. Factor 2 had a mainly social dimension, while considering the financial aspect of such activities. Factor 3 concerned the employee’s ability to support personal development of the employee.
Differences were found in the implementation of sustainable business models in small, medium, and large Polish enterprises. Those differences concerned the methods of integrating the individual dimensions of sustainable development. In small enterprises, there were two factors, and in medium-sized and large enterprises—three. Moreover, in the group of large enterprises, the presence of an economic dimension was observed in each of the three factors, unlike in medium-sized enterprises, where it occurred in two factors. This indicates greater integration of this dimension in large enterprises compared to medium-sized enterprises.
Sustainable business models are researched in different contexts [
79]. The predominant trend in this research relates to the environmental aspect of sustainable development [
7,
80]. However, there is a notable lack of in-depth research on other aspects of TBL. There have also been no attempts to integrate the sustainable business model with the sphere of social innovation, which remains largely separate [
81,
82]. Combining these fields can lead to the emergence of new conceptualizations of business models for sustainability and the discovery of unique ways to innovate business model components. This creates the prospect of further research in this area. There is also a growing recognition that new forms of business are needed, moving away from the paradigm that assumes infinite growth [
83,
84]. Responsible managers are challenged to create more innovative business models with greater social and environmental sustainability benefits. Analysis of companies that are leaders in the introduction of innovative sustainability practices and with high social performance would help find ways to implement sustainable business models and, as such, should be an area for further research.