Happiness at Work and Motivation for a Sustainable Workforce: Evidence from Female Hotel Employees

: Employment practices that support happiness at work are critical tools for developing a sustainable workforce. In today’s challenging environment, both economically and environmentally, the contribution of a sustainable workforce, which is the most critical asset for hospitality businesses to survive and succeed, cannot be ignored. This study explores the effects of motivational dimensions on happiness at work. These relationships were evaluated using the SPSS for Windows 25.0 and AMOS 23.0 programs. For this purpose, data were collected from 271 female employees in various four- and ﬁve-star hotels in North Cyprus. As predicted, the results revealed that motivational dimensions affect the dimensions of happiness at work. This study conﬁrmed that a better understanding of employees’ needs and demands would encourage motivation and result in happier employees. The ﬁndings offer important implications for hospitality industry organizations seeking to maximize employee happiness in the workplace and strive for the sustainability of their workforce.


Introduction
Today's evolving and changing dynamics at an easily noticeable speed make it difficult for businesses to survive in the global competitive environment. In this challenging environment, both economically and environmentally, it has become necessary for hospitality organizations to focus on customer satisfaction by differentiating themselves from others to survive and succeed. In this context, the contributions of its employees, who are the most critical assets of the service sector and the backbone of its competitive advantage [1], cannot be ignored. The hospitality industry and other sectors have increasingly begun to offer their employees more uncertain, unpredictable, and risky working conditions [2]. This manifested itself as an increase in stress levels in employees and a general worsening of their physical and mental health [3]. A sustainable workforce can only be achieved by supporting employees' happiness at work (HAW) and paying attention to the working environment [3]. Likewise, retaining highly motivated employees and a healthy working environment are a must for a sustainable workforce in the hospitality industry [4]. Poor working conditions, low wages, temporary employment, high employee turnover, and inequality of opportunities for women are some of the challenges that are faced by those working in the hospitality industry [5].
Given that women workers comprise 70% of the worldwide hotel industry workforce, their critical role should not be denied [6]. However, their numerical superiority does not reflect their leadership roles in the industry [7]. Although the hotel industry tends to hire women employees due to the nature of the services provided [6], women are still underrepresented in senior roles [8]. Women are often employed as waitresses, receptionists, or cleaning staff in low-skilled and low-wage service jobs, which are seen as an extension of their roles at home [9,10].
Due to the difficulty of finding effective ways of achieving positive improvements in perceptions and attitudes [11] of these "emotional labours" [12], employees' motivation has become vital issues highlighted by managers and colleagues [13][14][15]. Working conditions in the hospitality industry are characterized by low wages, long working hours, and high intention to leave-far from satisfying and motivating employees [16][17][18]. On the other hand, organizational managers create and encourage HAW when they increase motivation in their subordinates [19]. HAW provides an environment where employees can work while feeling good. Since hospitality employees consist of unhappy employees who try to host their guests and make them happy [20][21][22], increased levels of happiness will inevitably have a positive effect on customers.
Given that the average adult spends most of his life working, this time will be much longer in the hospitality industry characterized by long working hours. Therefore, the HAW of employees is in the interest of organizations and even society.
A research model using Herzberg's motivation-hygiene theory was designed to address what is missing in the hospitality literature and reveal the relationship between the two variables: motivational dimensions and HAW. Motivational dimensions are (1) growth and achievement; (2) work itself, responsibility, and recognition; (3) interpersonal relationships; (4) working conditions; and (5) salary. While growth and achievement, and work itself, responsibility, and recognition are intrinsic motivating factors (motivators), interpersonal relationships, working conditions, and salary are extrinsic motivating (hygiene) factors. HAW consist of (1) engagement, (2) job satisfaction, and (3) affective organizational commitment dimensions. The analysis of the current study provided evidence for increasing the happiness levels of female hotel employees in Northern Cyprus. Therefore, this study can be used effectively to develop a sustainable workforce and customer satisfaction. As discussed above, we aim to contribute to motivation and HAW literature; at the same time, we aim to make inferences and contribute as a practical guide for managers who want to increase the HAW of employees by creating facilitating conditions for meeting the psychological needs of employees.
In the continuation of the study, previous studies on Herzberg's motivation-hygiene theory and HAW were reviewed in the literature review section. In the methodology section, hypotheses are developed by reviewing the literature revealing the relationship between motivational dimensions and HAW, and the specific procedures and methods used in the study are explained. The statistical analysis results are shown in the analysis and findings section. The discussion and conclusion section, where the theoretical and practical values of the research are explained, is followed by the implications and limitations sections.

Herzberg's Motivation-Hygiene Theory
One of the most challenging tasks of managers and leaders can be said to be "getting people to do their jobs in the best way possible" [23]. As a word, motivation originates from the Latin word 'mover' or 'to move.' Motivation is described as how to provide a person with something to motivate him/her to do something [24]. It is essential because it leads to success and inspires people to act; it is "the 'driving force' behind the behavior." [25].
In 1959, Herzberg and colleagues developed the motivation-hygiene theory, influenced by Maslow's hierarchy of needs, and in the first publication [26], the research consisted of two hypotheses: 1.
The factors causing positive job attitudes and those causing negative attitudes are different; 2.
The factors and the performance or personal effects associated with sequences of job events extending over long periods differ from those associated with sequences of short-duration events.
After completing a comprehensive literature review of over 2000 job satisfaction studies, Herzberg [26] studied more than 200 employees working in nine different factories in the USA's Pittsburgh region to determine the factors that affect employees' working environment and cause satisfaction or dissatisfaction. According to the research data, the factors that cause job satisfaction and dissatisfaction are divided into two categories; the first category is the motivators associated with growth and self-actualization. In general, motivators are part of the job context and are often managed by employees. Motivators are complex and subjective, intrinsic to the job, and are often very difficult to measure. The presence of growth factors can lead to job satisfaction, but their absence causes no job satisfaction. According to Herzberg, responsibility and advancement are the only way to increase motivation through job satisfaction. Motivation factors included achievement, recognition, work itself, responsibility, advancement, and possibility for growth [27,28].
The other category was hygiene factors associated with avoiding unpleasantness. Hygiene factors are typically extrinsic and are under the control of the supervisor or someone other than the employee [27,28]. When using the term "hygiene," Herzberg implied the medical meaning of the term. In other words, it is used to mean "eliminating the hazards from the environment [29]. According to Herzberg, a "hygienic" environment prevents dissatisfaction with a job, but it cannot take a person beyond that. Hygiene factors included company policies and administration, the relationship with supervisors, interpersonal relations, the working conditions, and the salary and are easier to measure than the motivators. Job dissatisfaction occurs when these hygiene factors fall below the level that the employee considers acceptable. According to Herzberg, hygiene factors cannot motivate. When used to motivate, it can have long-term adverse effects [27,28]. While many studies have criticized Herzberg's theory [30,31], Bassett-Jones and Lloyd [32] stated that the theory is still applicable and valid as in the 1960s.

Happiness at Work (HAW)
Interest in employee well-being in organizations emerged with positive psychology rising in the 1990s [33]. Later, sociologists and management scientists began to show interest in the subject [34].
While happiness varies according to many approaches and disciplines, it is not surprising to find many different definitions even within the same disciplines. Namely, meaningfulness, well-being, joy, satisfaction, quality of life, and pleasure are used synonymously with happiness [35,36]. Two concepts of happiness can be mentioned: The first is hedonic happiness and manifests itself as pleasant feelings and favorable judgments about happiness. The second is eudaimonic happiness. It can be presented as the non-contradictory things needed to live a moral, meaningful, and virtuous life that is compatible with one's actions and fulfilling [37,38]. After both hedonic and eudaimonic aspects of well-being were measured and found to be strongly related, the usefulness of making this distinction was questioned [39,40]. Seligman [41] uses the abbreviation "PERMA" for happiness, consisting of Pleasure, Engagement, Relationships, Meaning, and Achievements. Fisher [42] defines HAW as "Employees' happy feelings towards the job itself, the job characteristics and the organization as a whole." Furthermore, it concludes that happiness should be seen as an essential factor for the employee to continue to function [42]. HAW has also been defined as a combination of good relationships, career development, and feeling valued in the workplace [43].
Fisher's [42] HAW consists of three dimensions. These three dimensions are engagement (ENG), job satisfaction (JS), and affective organizational commitment (AOC). Engagement is about a unique sense of energy and motivation associated with feeling excited and passionate at work. Job satisfaction is the attitudes towards working conditions such as salary, career opportunities, and peer relationships. Affective organizational commitment is the feelings of commitment and compassion to the organization.
Increasing competition in the hospitality industry creates a concern among hotels to satisfy their customers more than their competitors and thus to gain their loyalty. Ho-tel businesses that want to get ahead in the sector can realize their increasing customer demands by motivating their employees [44,45], who are always in direct contact with customers and are vital parts of service delivery [46]. The need for employees and the importance to be given in return for labor-intensive hotel businesses should be more than other businesses because the execution of the services and the satisfaction of the customers largely depend on the employees. In other words, increasing customer satisfaction and providing services quickly, ultimately, and regularly depend on highly motivated employees [47]. Whether customers are happy with the service provided or not is directly related to the happiness of the employees. Therefore, ensuring that employees are motivated and happy becomes the most critical issue in service delivery [48].

Model and Hypotheses
This research aims to analyze the effect of motivation dimensions on HAW of female employees. Motivation consists of "Growth and Achievement", "Work Itself, Responsibility, and Recognition", "Interpersonal Relationships", "Working Conditions", and "Salary" dimensions [28,49]. HAW consists of "Engagement", "Job Satisfaction", (JS), and "Affective Organizational Commitment" (AOC) dimensions [50]. Accordingly, the research design of the study was created and shown as in Figure 1.

The Relationship between Motivational Dimensions and HAW
In the literature, motivation and happiness-related concepts are explained with different approaches. While some studies [43,51] reveal that happy individuals have a higher motivation than unhappy individuals, other studies state that highly motivated individuals become individuals with higher levels of happiness [19,52,53]. With the correlation between 0.50 and 0.60, job satisfaction and life satisfaction directly and significantly affect each other [54,55]. Chiumento [43] found that 50% of the happiest people at work are more motivated than others and suggested that those happiest are 180% more energetic, 108% more engaged, and 79% more likely to enjoy their work. Hassanzadeh and Mahdinejad [51] reported a significant relationship between happiness and achievement and intrinsic motivation [53]. Therefore, the high level of HAW will reflect the employees' motivation to succeed in the workplace.
In 1959, Herzberg [26] asked employees to describe when they felt particularly good or bad in their job. As a result, employees reported feeling the best when connected with events that included achievement, recognition, responsibility, and growth opportunities. Motivation and hygiene theory states that employees still do their jobs properly without motivating factors, but employees are more engaged and exceed the job's minimum requirements if there are motivators.
According to Kahn [52], when employees' basic needs are met, positive emotions emerge, and they become more cognitively and emotionally engaged. Chitiris [56] stated that employees supported by career development experiences could be productive and reliable even if their other needs are unmet. Faulkner and Biddle [57] mentioned the process of adaptation to positive emotions: Even if the conditions supporting the positive state are maintained, it will not continue due to adaptation to the situation. However, if the chosen type of activity is meaningful, such as learning new skills, the favorable situation may last longer. Spreitzer et al.'s [58] concept of thriving at work, including employee happiness and well-being, combines the sense of progress towards learning, growth, and self-actualization as a structure [59]. In addition, Karatepe and Uludag [46] found that internal factors such as sense of achievement and personal growth positively affect AOC and JS. Lundberg et al. [60] obtained similar results supporting previous studies with seasonal hospitality works in Sweden.
Based on the motivation-hygiene theory and studies mentioned above, we hypothesize that growth and achievement would positively influence happiness dimensions, and therefore we formed the following hypotheses: Hypothesis 1 (H1). Growth and Achievement will positively influence ENG.
The effect of motivation on employee satisfaction, based on Herzberg's theory, has been investigated in many previous studies in the hotel environment [46,56,[60][61][62][63]. Ryan and Deci [64] state that intrinsic motivation factors arise from doing the job for one's good and, as a result, provide a state of well-being. Furthermore, in the Gallup Workplace Audit [65], issues such as the availability of recognition and praise have been recognized as antecedents of engagement. De Silva and Yamao [66] revealed that higher manager and supervisor evaluations result in higher employee commitment. In addition, Fisher [42] defined HAW as "...happy feelings towards the job itself". Based on the motivation-hygiene theory and the studies mentioned above, we suggested that intrinsic factors such as work itself, responsibility, and recognition would positively influence happiness dimensions, and we formed the following hypotheses: Hypothesis 4 (H4). Work itself, responsibility, and recognition will positively influence ENG.
Hygiene factors, namely extrinsic motivation, do not come from within a person but arises from external factors [67]. Despite the large number of studies demonstrating that intrinsic motivation has a direct and positive effect on engagement [62,63], few studies examine the relationship between extrinsic motivation and engagement and suggest a positive relationship [68,69]. Chitiris' [56] study revealed that hygiene factors have a substantial effect on JS, but the contribution of motivators is minimal. This study was supported by another study conducted in the US and Canada in 1995 [61]. Future studies have also obtained results that found a significant positive relationship indicating that as extrinsic motivation increases, JS increases [70,71]. Ogihara and Uchida [72] found that in the workplace, individualism, the "loosely linked individuals," or the lack of interpersonal relationships is negatively associated with subjective well-being. Again, in a study investigating the role of friendship on happiness, interpersonal mattering is an important and influential predictor of happiness [73]. Based on these studies, we suggested that extrinsic factors such as interpersonal relationships would positively influence happiness dimensions, and we formed the following hypotheses: Hypothesis 7 (H7). Interpersonal relationships will positively influence ENG.

Hypothesis 9 (H9). Interpersonal relationships will positively influence JS.
Loscocco and Spitze [74], in their study on female and male factory workers, found that all kinds of working conditions significantly affect employee well-being, and this did not indicate a difference according to gender. Demerouti et al. [75] suggested that working conditions affect life satisfaction or happiness through changing the person's characteristics or the environment. For example, working conditions may change the person's mood, energy level, skill, or health and cause the person to be happy or unhappy. Based on these studies, we suggested that extrinsic factors such as working conditions would positively influence happiness dimensions, and we formed the following hypotheses: Hypothesis 10 (H10). Working conditions will positively influence ENG.

Hypothesis 12 (H12). Working conditions will positively influence JS.
A study of 6000 subjects in the USA revealed that happiness increases as income increases [76]. Studies comparing countries' income levels have determined that the average national happiness is higher in countries with low-income differences [77]. According to Kahneman and Deaton [78], having more money is associated with experiencing greater daily happiness. Hwang [79] found that there are significant differences in happiness levels depending on salary. Nurses with a salary of more than 301 million KRW (South Korean Won) had a higher sense of happiness than nurses with a lower salary. Based on these studies, we suggested that extrinsic factors such as salary would positively influence happiness dimensions, and we formed the following hypotheses: Hypothesis 13 (H13). Salary will positively influence ENG.

Data Collection and Analysis
Kyrenia and the Iskele/Famagusta region, which host the most tourists in Northern Cyprus, are the most popular tourist destinations with their many attractions. For this reason, these regions have been chosen as the target research areas. The population was selected from among female employees in four-and five-star hotels. The Ministry of Tourism and Environment Tourism Planning Office [80] shows 21 five-and four-star hotels in these regions. Twenty of these hotels are located in Kyrenia and one in the Famagusta region. Since there are no statistics on the number of female employees, the authors contacted human resources managers to determine whether they were willing to collaborate with this project and determine the number of women working in their hotels. It was found that 680 women worked at these hotels. Then, 500 questionnaires were distributed between September 2019 and February 2020 to the hotels' human resources departments. Participants were guaranteed anonymity and confidentiality in the cover letter attached to the questionnaires. In total, 300 questionnaires were collected, and 29 of them were discarded due to incomplete information. Finally, 271 valid questionnaires were used for data analysis (54.2% applicable response rate). Guilford [81] suggested that the number of participants should be at least 200 cases to apply statistical analysis methods, and this study meets this criterion with a sample size of 271. The distribution of the participants in the study according to their sociodemographic characteristics is shown in Table 1. Considering the mid and senior-level managers, 60.9 percent of the participants work as managers and supervisors due to the traditional flat structure of the hotels. In this context, managers are evaluated with their managerial functions within the business, such as operations, quality control, sales, and front office tasks [82,83]. The data collection method in this study is questionnaires. Three sections were designed in the questionnaire to collect data. The first part of the questionnaire includes motivation, the second part, HAW. The last part includes questions about the demographic information (age, marital status, weekly working time, department, position levels, education, time worked in the current workplace, and the sector). While the motivational dimensions constituted the independent variable, HAW constituted the study's dependent variable.
Diagnostic tests, reliability, and validity tests have been performed. For scale reliability, Kaiser-Meyer-Olkin (KMO) and Item Total Score Correlation analyses were conducted. An "Exploratory Factor Analysis (EFA)" via the SPSS program and a "Confirmatory Factor Analysis (CFA)" using the AMOS program were performed to confirm the validity. In line with the hypotheses formed, path analysis was applied to investigate the effect of the scales' dimensions on each other.
Before applying EFA to the scales, the KMO test was applied for factor analysis. Results of the analysis are given under the EFA tables. As the value for both scales was over 0.8, it was concluded that the entire sample was sufficient for Factor Analysis (Tables 2 and 3). In addition, when the Bartlett's Sphericity test results were examined, it was seen that the obtained chi-square values were acceptable.

Motivation Scale
The Motivation scale in this study was developed by Guzel [49] and is based on Herzberg's motivation-hygiene theory. It was previously used by Gökkaya and Türker [84] in hospitality industry research. However, exploratory and confirmatory factor analyses have not been made before. The motivation scale consists of 21 items that address five dimensions ( Table 4). The study participants were asked to rate their answers on a fivepoint Likert scale ranging from strongly disagree (1) to strongly agree (5). To reveal the factor design of the motivation scale, a principal component analysis was chosen as the factorization method, and varimax, one of the orthogonal rotation methods, was chosen as rotation. In the EFA conducted to reveal the factor design of the motivation scale, it was determined that the scale has five sub-dimensions. These factors explain 70.849% of the total variance. The reliability of the motivation scale and its sub-dimensions were evaluated separately. It was found to be 0.908 for the overall scale, and it was found to have a good level of reliability (Table 2). When the correlations between variables are examined, it is seen that the factor loads of the items are above 0.40, and all correlation relations are significant (Table 4).
According to the CFA, it was determined that the structural equation modeling results of the scale were significant at the p = 0.000 level, and the 21 items and five sub-dimensions that make up the scale were related to the scale structure. Improvements are made in the model. While making improvements, variables that reduce compliance were determined, and a new covariance was created for those with high covariance among residual values. Then, in the renewed fit index calculations, it is shown in the table that the accepted values for the fit indices are provided (Table 5).

HAW Scale
The HAW scale is based on Fisher's [42] conceptualization of HAW. It was first developed by Salas-Vallina, Alegre, and Fernández [88,89], and it was later shortened by Salas-Vallina and Alegre [50]. The shortened version (SHAW) was used in this study. Salas-Vallina and Alegre [50] claim that this new scale will widely capture positive attitudes in the workplace and be used more efficiently and effectively. The scale consists of nine items in total, three items for each dimension (ENG, AOC, and JS). The ENG sub-dimension is on a 7-point Likert scale ranging from Never (0) to Always (Every day) (6); AOC is on a 7-point Likert scale ranging from Strongly disagree (1) to Strongly agree (7); and JS sub-dimension in 5-point Likert scale ranging from Strongly disagree (1) to Strongly agree (5).
To reveal the factor pattern of the HAW scale, principal component analysis was chosen as the factorization method and varimax from the orthogonal rotation methods as rotation. The EFA conducted to reveal the factor design of the HAW scale determined that the scale has three sub-dimensions. These factors explain 85.012% of the total variance. In multi-factor designs, more than 40% of the explained variance is considered sufficient [90,91]. The reliability of the HAW scale and its sub-dimensions were evaluated separately. It was found to be 0.903 for the overall scale, and it was found to have a good level of reliability (Table 3).
When the correlations between variables are examined, it is seen that the factor loads of the items are above 0.40, and all correlation relations are significant (Table 6). According to the CFA, it was determined that the structural equation modeling results of the scale were significant at the p = 0.000 level, and nine items and three sub-dimensions that make up the scale were related to the scale structure. Improvements are made in the model. While making improvements, variables that reduce compliance were determined, and a new covariance was created for those with high covariance among residual values. Then, in the renewed fit index calculations, it is shown in the table that the accepted values for the fit indices are provided (Table 7).

Path Coefficient and Level of Significance
The following part of this section will examine the relationship between the variables in detail. After the path analysis, in which the hypothesized variable relationships were investigated, 13 of the 15 hypotheses were supported, as presented in Table 8.
Evaluations revealed that growth and achievement did not have a statistically significant effect on engagement (Table 8). However, it turned out to be statistically significant on the AOC, where a one-unit increase in growth and achievement resulted in a 0.434-unit increase in AOC (Table 8). Thus, H2 was supported, but H1 was not. Other measurements are given below, respectively.
Path analysis results showed that growth and achievement had a positive and statistically significant effect on JS. A one-unit increase in growth and achievement led to an increase of 0.532 units in JS (Table 8). Thus, H3 was supported.
The relationship between work itself, responsibility, and recognition and the HAW dimensions revealed that the independent variable has a positive and statistically meaningful effect on three dependent variables. A one-unit increase in work itself, responsibility, and recognition lead to a 0.590-unit of increase in engagement, a 0.736-unit increase in AOC, and a 0.597-unit increase in JS (Table 8). Thus, H4, H5, and H6 were supported.
The results of the path analysis revealed that interpersonal relationships have a positive and statistically meaningful effect on three dimensions of HAW, where a one-unit increase in interpersonal relationships lead to a 0.156-unit increase in engagement, a 0.486-unit increase in AOC, and a 0.251-unit increase in JS (Table 8). Therefore H7, H8, and H9 were supported.
When the relationship between working conditions and HAW dimensions was tested, it was seen that working conditions have a positive and statistically meaningful effect on three HAW dimensions. A one-unit increase in working conditions lead to a 0.543unit increase in engagement, a 0.626-unit increase in AOC, and a 0.533-unit increase in JS (Table 8). So, H10, H11, and H12 are supported.
The evaluations revealed that salary did not have a statistically meaningful effect on engagement but had a statistically meaningful effect on AOC and JS, where a one-unit increase in salary lead to a 0.238-unit increase in AOC, and an increase of 0.414 units in JS (Table 8). Thus, H14 and H15 were supported, but H13 was not.

Discussion and Conclusions
The path analyses supported most of the hypothesized relationships. As discussed earlier, hospitality industry employees are unhappy due to heavy workload, poor working conditions, and long working hours [20,21]. Despite recognizing the importance of motivation and HAW for organizations, little is known about the impact of motivational dimensions on HAW. With this recognition, this study, seeking the answer to whether or not motivational dimensions affect HAW, proposed and tested a research model that builds on and expands on the previous research.
For this, the relationships between motivational dimensions and HAW dimensions were tested. It has been observed that the work itself, responsibility, and recognition, interpersonal relations, and working conditions affect engagement positively. This finding reveals that the better the relations and working conditions among the employees in an organization, the higher the responsibility and recognition given to the employees, and the more engaged the employees are. However, growth, achievement, and salary do not have significant relationships with engagement. Considering that this study was conducted on women employees, this result may reflect the lack of growth and achievement opportunities. Despite studies pointing out the relationship between money and happiness [76][77][78][79] our research did not find a significant relationship between salary and engagement. However, it turned out to have a positive effect on AOC and JS dimensions.
Findings revealed that AOC was positively affected by all motivational dimensions. This result is consistent with studies showing that both intrinsic and extrinsic factors positively affect AOC [46,60,66,92,93].
As shown in Table 8, results revealed that both intrinsic and extrinsic factors significantly affected JS. Although this result is partially consistent with Herzberg's theory, Herzberg only emphasized the influence of intrinsic factors on JS. The theory stated that extrinsic factors would not cause JS, but its absence will cause no JS. Different studies reveal the effect of intrinsic and extrinsic factors on JS [46,56,[60][61][62][63]70] and our result is consistent with these studies.
We believe this research contributes to the relationship between employee motivation and happiness, a well-known but not well-defined relationship. Today, HAW is essential for organizations to achieve sustainable workforce employment. Our research proposes a model for promoting happiness in hospitality industry organizations. Motivation is an essential source and a reason for HAW development. In line with previous studies [19,27,52,53], our study reveals if organizations encourage motivation by providing employees good working conditions, giving growth opportunities; appreciating their achievements (monetary and nonmonetary); supporting interpersonal communication through positive attitudes, and thus HAW. This study confirmed that a better understanding of employees' needs and demands would encourage motivation and result in happier employees.
Our second contribution demonstrates that the happiness scale can be applied in the hospitality industry. The motivation scale also overcame dimensionality, reliability, and validity and ensured maximum strength for them. Although the motivation scale has previously been measured as reliability and validity and used in the hospitality industry, EFA and CFA exceeded the dimensional features in this study.
Based on the results, we recommend that the managers in the hospitality industry and the managers of the human resources departments take measures to increase employee motivation. Thus, the employees' happiness in the workplace will increase; however, an important step will be to create a more sustainable workforce by increasing their engagement, affective organizational commitment, and job satisfaction.

Implications
The primary purpose of this study is to increase motivation and happiness at work in hospitality organizations. Furthermore, our findings have important implications for organizations wanting to maximize the happiness at work of their employees. Employee turnover has been one of the critical managerial problems of the hospitality industry [94,95]. From this viewpoint, a sustainable workforce must put forth practices that increase employee motivation and significantly more workplace happiness. Accepting employee happiness as a corporate value will be a critical decision for management to sustaining the workforce. Encouraging and sustaining HAW in the working environment means investing in motivational dimensions by management. In addition, our proposed model for HRM in the hospitality and other industries will help maintain employee engagement, commitment, employee satisfaction and, therefore, customer satisfaction, service quality, and workforce sustainability in line with HRM objectives.

Limitations
This study has some limitations. First, the questionnaires were filled out by hospitality industry employees. Therefore, we acknowledge that different conclusions can be drawn if the same research is conducted in other sectors. Second, this study is cross-sectional and suggests that longitudinal studies should clarify our model as motivation and HAW levels can change over time. Third, self-reported questionnaires can lead to subjective responses. Given these limitations, new questions may be suggested for future research. How does the effect of motivation on HAW differ in a study comparing men and women? What role does the age, department, or education of the employees play in this relationship? Future re-search should examine moderator factors. A final limitation concerns the generalizability of the results to other cultures and countries. Since the example is from only one country, it will be interesting to examine whether the relationship between motivation and HAW is different in different cultures. Institutional Review Board Statement: Ethical review and approval were waived for this study based on the consent of the thesis advisor, which is acknowledged by the ethical committee of the Cyprus International University.