Perceived organizational support and job satisfaction: a moderated mediation model of proactive personality and psychological empowerment

Drawing on social exchange theory, the purpose of this study is to examine the mediating role of psychological empowerment and moderating role of proactive personality in the relationship between POS and job satisfaction. The data were collected from 936 employees working in various manufacturing and service sectors by using self-report survey questionnaires by employing time-lagged cross-sectional study design. The study findings demonstrate that POS positively influenced psychological empowerment and job satisfaction. Moreover, it is also revealed that the relationship between POS and job satisfaction is weaker when employees’ proactive personality is higher rather than lower. The findings of the current study pose a framework for organizational representatives of both service and manufacturing industries to strengthen individual psychological empowerment and job satisfaction by offering organizational support to those individuals who are less proactive.


Introduction
A long-lasting employment bond comprises positive social exchange approaches in employee-employer relationship whereupon the needs of both parties are addressed [40]. In the exchange relationship, the employer is worried about the employees' devotion, engagement and trustworthiness toward them, while employees are conscious about whether their employer is keeping their promises by caring their well-being [48,61]. The theory of organizational support and construct of perceived organizational support (POS) was developed by Eisenberger and his research fellows in [26,27] using social exchange theory [15,37,40]. POS is defined as the perception of employees about the degree to which their contributions at organizations are valued, which implies that their associated well-being is given full consideration [5,26,61]. The organizational support theory states that individuals form POS, a universal faith that their employer has an advantageous or a disadvantageous inclination toward them [40,61]. Literature also confirms that individuals' POS helps boost their obligations toward organization in order to reciprocate favorably. Furthermore, they also want to satisfy their socioemotional needs and incorporate organizational affiliation into their social identity [21,29]. In addition, extant literature has shown that individuals' POS enhances both in-role performance such as goal attainment and extrarole performance such as helping and supportive behavior toward coworkers [29].
By utilizing social exchange theory as its grounding, researchers have begun to study POS in interpersonal connections with organizations and recognized it as a

Open Access
Future Business Journal *Correspondence: tahirabutt433@hotmail.com 1 School of Business Administration, National College of Business Administration and Economics, Lahore, Pakistan Full list of author information is available at the end of the article vital ingredient in subordinate-manager relations [65]. Meta-analysis conducted by Rhoades and Eisenberger [61] revealed the favorable treatments such as rewards from the organization, beneficial working conditions and fairness received by employees are directly linked to POS. Moreover, POS promotes auspicious outcomes such as high job satisfaction, lower turnover, enhanced dedication, positive emotions and better performance [77]. Multi-foci methods to social exchange have highlighted the significance of many sources of support, according to which individuals develop distinct give-and-take relationships with different organizational objectives [51]. The positive association of POS with job satisfaction, performance, organizational commitment and turnover intention has gained attention in number of employeeorganization-related studies [30,74]. Similarly, the outcomes that are relevant to organizational support are job satisfaction, innovative work behavior, learning goal orientation, core self-evaluations and organizational commitment [1,59,71,74,78]. Furthermore, the literature reveals that organizations achieve favorable outcomes if workers feel superior treatment within the organization [74].
Based upon the theoretical perspective of social exchange theory, the current study proposes that psychological empowerment influences the behavior of employees by facilitating them in preserving high-quality relationships. We suggest that psychological empowerment works as the intervening variable that links the POS with the job satisfaction. Psychological empowerment is defined as the perception of employees regarding the degree of their competence, influence and autonomy toward work environment and meaningfulness of their job [62]. It is the procedure by which employees achieve mastery and control in their lives, and develop a sense of critical understanding toward dealing their situation [12,55]. Researchers Chang and Liu [17], Savery and Luks [63], Laschinger and Finegan [50] contended that empowered employees at the workplace have increased personal, political and interpersonal powers that enhance their physical and mental health. Thus, another purpose of the current study is to investigate the linkage between perceived organizational support and job satisfaction via the mediating role of employees' psychological empowerment. However, the understanding of the work context that enables empowerment has significant practical and theoretical implications [16], but we do not know how and why this is the case. This research also examined whether and how proactive individuals might be a boundary condition for the impact of POS on psychological empowerment. In addition, it explored how the overall mediation process differs under various proactive personality levels.
Proactive personality refers to the tendency of individuals to take initiatives for establishing a positive environment [10,22,70]. Usually, people with a proactive personality are able to create positive change in the workplace environment irrespective of the hurdles and constraints faced by them [62]. Proactive personality research shows that proactive behavior influences meaningful changes in the workplace setting [10,44]. Researchers contend that proactive individuals are most probably ready for employment-related changes, given their predisposition to identify and respond to the job opportunities and make such changes that match with their interests at job [44,68]. In support of this reason, experiments have shown that proactive individuals can effect vocational adaptability through situations and samples [38,44,53,68,69]. However, there is vague understanding of the underlying mechanisms concerning how these effects arise. Examining these mechanisms probably offers counselors and psychologists with substitutes for intervention in the future [44]. For example, from these types of mechanisms, these experts probably gain comparatively advanced understandings concerning whether and how proactive employees feel psychologically empowered.
Psychological empowerment represents an employee's active and lively orientation to their respective role assigned at workplace, whereby empowered employees see their work environment as somewhat which can be shaped by their actions [66], which arouses their creative behavior [41,79], whereby it serves as a mediator that transmits the impact of proactive individuals to job satisfaction. Thus, this study aims at exploring how contextual characteristics such as POS can be associated with job satisfaction in general. Secondly, psychological empowerment is considered as an important mediating mechanism between perceived organizational support and job satisfaction. Furthermore, proactive personality moderates the relationship between perceived organizational support and psychological empowerment.
Research in organizational behavior draws our attention on a narrow range of job-related attitudes, and POS is one of them. In establishing the proposed associations in the model, the current research represented an attempt to contribute toward literature in number of different manners. The theoretical underpinning of POS is organizational support theory [29,48], which is also based upon social exchange relationship and attribution methods [15,73]. Organizational support scholars argued that employees tend to monitor their situations and make attributions for generous behaviors of organizations [26]. It is given that individuals tend to personify their respective organizations and consider positive and negative treatments which they receive from organizational heads as their perception of being favored or disfavored by organizations as well [65]. Research in the field organizations contended that there is a reciprocal relationship between individuals and organizations. Therefore, it is imperative to consider the organizational support given to the individuals besides focusing on just employee side of this relationship [20].
The tenets, attitudes and aspirations of each employee vary; therefore, motivational elements may be different too. POS can improve individuals' trust and beliefs that the organization identifies their performance and reward them accordingly [61,72]. As a consequence, individuals will reciprocate [9] the organizational support received by them in several ways and possibly will experience more satisfaction with their job. Therefore, the underlying purpose of the current study is to study the influence of perceived organizational support on job satisfaction.
Secondly, it examines whether psychological empowerment is well incorporated in POS and job satisfaction linkage. Psychological empowerment enables employees to participate in decision making and help in sorting out organizational problems by providing them independence and control [34]. For many years, scholars have examined behavioral consequences of psychological empowerment. Psychological empowerment fosters high-quality relationship by motivating an individual's behavior.
Thirdly, this study corroborates the impact of proactive personality and proposes that it weakens the relationship between POS and psychological empowerment. Proactive personality demonstrates the willingness and the tendency of an employee to go above and beyond their job requirements to exhibit extra-role performance [75]. Henceforth, this research is important to explore and gain insights on the relationship between POS and job satisfaction via the mediating role of psychological empowerment in Asian context. Additionally, to the best of our knowledge, the influence of proactive personality as a moderator has not been examined on the relationship between POS and psychological empowerment (Fig. 1).

Perceived organizational support and job satisfaction
Armstrong-Stassen [7] explained that individuals' behavior is influenced by their opinion about fundamental processes that constitute their organization and POS is among them. Few scholars have revealed a strong linkage between POS and job satisfaction [23,30,33]. In a longitudinal study conducted by Armstrong-Stassen [7], it was observed that managers who enjoy high levels of POS reported elevated levels of job satisfaction as compared to managers who supposed to enjoy lower organizational support. The potential description of this outcome is that POS can enrich individuals' trust and beliefs that their employer identifies and recompense their struggles to accomplish superior performance [61]. Research suggests that POS starts a social exchange process where individuals feel liable to support the organization in accomplishing its goals which leads to greater rewards. When an employee associates positively with their job and organization, this strengthens the association between them and within the realms of social exchange theory [14]. As a result, individuals reciprocate organizational support through numerous ways and are more satisfied with their jobs. It is given that employees with POS sense an intrinsic compulsion to be socioemotionally devoted to the work and the organization as well. Thus, they are highly loyal and satisfied with their job and organization [36]. On the basis of the above discussion, it is proposed that: Hypothesis 1 POS is positively related to job satisfaction.

Mediating role of psychological empowerment
Those individuals who perceive organizational support toward a working situation are likely to experience psychological empowerment [32]. Psychological empowerment is a bundle of circumstances that allows individuals or groups to think that they have a grip over their work [39]. An empirical support has been found about the direct association between POS and job satisfaction [76]. It has been discussed that when individuals experience empowerment, they recognize that their job is important and they can make decisions by their own. They see that their work effects the organizational effectiveness, which in turn advances job performance [18] and satisfaction. It is suggested that prudent organizations give power to its workforce by making them involve in decision making, which makes them believe that their work is meaningful [49]. A recent study has shown that employees' psychological empowerment is a source of competitive edge for organizations [56]. It is demonstrated that the employees who receive organizational support show more satisfaction toward their job and have lower turnover rate [49]. A recent study demonstrated that psychological empowerment works as an essential force that intervenes in the association between POS and job satisfaction [8]. Many researches on social exchange [2] and the norms of reciprocity [37] emphasize that employees feel obligated and are ready to assist their coworkers as well as their employers. Similarly, empowered individuals consider themselves as a significant part of the organization, are competent in accomplishing their goals, experience a sense of hold on their job and are involved in activities that affect the organization in a positive way [6]. In the same vein, previous research suggests that when individuals perceive high levels of psychological empowerment, it is highly probable that they feel motivated and dedicated toward their job responsibilities [56].
Furthermore, psychological empowerment works as the key motivator of the individuals' job satisfaction and previous findings have exhibited the positive association between job satisfaction and psychological empowerment [46]. In sum, it is believed that the individuals, who perceive that their organizations recognize their contributions, will feel a greater sense of psychological empowerment, which in return is linked to high job satisfaction [32,49]. Thus, it is hypothesized as: Hypothesis 2 Psychological empowerment mediates the relationship between POS and job satisfaction.

Moderating role of proactive personality
Specifically, the organizational support theory posits that individuals define their work contributions found on the degree to which they think that their organization is conscious about their welfare. When individuals observe that they are appreciated and employer backed them up, in return they tend to involve in desired actions such as they actively learn, exhibit supportive behavior, show commitment toward their organization and providing beneficial solutions. Individual characteristics such as personalities have an important role in affecting how individuals POS as well as how they act. The proactive, imaginative and tough character of adjustable individuals permits them to obtain these capabilities on their own and take organizational support [25].
By encouraging organizations to be more socially concerned about positive job-family links, workplace circumstances play a proactive role in outlining the vital job and societal consequences [47]. Psychologically empowered workers proactively carry out their work responsibilities [66]. A research revealed that highly proactive individuals are engage more in constructive behaviors such as learning, fabricating a promising work situation, recognizing avenues to grow [70].
In particular, proactive individuals are skillful at developing and maintaining positive give-and-take dealings in the working environment [52]. Therefore, it has been anticipated that proactive individuals with a powerful fundamental force may react to organizational support more favorably than inactive individuals [75]. Psychological empowerment enhances an individual's self-efficacy and the capability to influence one's job environment, promotes proactive behaviors and creative behavior and lets one to perform freely [19].
Organizational support theory advocates that employees' work effort is based upon how much their employing organization is conscious about them and their comfort [61]. The employees consider that they are valued and favored at work and then most probably involved in organization's desired behaviors, including helping others, learning keenly, stay with the organization for longer tenure and offering useful suggestions [61]. Previous research shows that individual differences like proactivity can play as a major force behind affecting how individuals perceive organizational support and behave [4,75].
Help and opinion from interaction with colleagues can deliver precious support to individuals when learning organizational prospects, team rules, grasping work information and adapting social norms of the organization [13]. It is given that highly proactive individuals are unrestricted by situational hindrances and are competent enough to bring changes to enhance their position in organizations [11].
Employees with proactive, resourceful and strong nature acquire and use support from their organization [25]. By modifying office environment to be more socially supported by having strong ties, employment perceptions play a proactive role that determines social outcomes [47].
Moreover, proactive employees also get involved in extra-role organizational behaviors such as designing a constructive working environment and recognizing new avenues [52]. It further helps management in developing such work circumstances where employees consider themselves empowered enough to proactively involve in sustainability behaviors [49]. By integrating the above arguments, it is argued that proactive individuals do not need organization support as they can choose, build and manipulate work conditions in their favor rather than taking organization help. Consequently, proactive personality fades the association between POS and psychological empowerment, as the less organizational support, the more proactive employees will be and the more they will be psychologically empowered. Subsequently, it is proposed that Hypothesis 3 Proactive personality moderates the relationship between POS and psychological empowerment, such that this relationship is stronger when proactive personality is low rather than high.

Sample and procedure
Data were collected from practitioners belonging to various job functions (e.g., administration, corporate services, engineering, construction works, information and communication technology, education, public relation and media) from both services and manufacturing organizations located in the Punjab province of Pakistan. For sample selection, purposive sampling was utilized in order to get responses from the information-rich cases by proper utilization of available means [31]. Moreover, in order to minimize the effect of common method bias, data were collected from participants in two waves (one-month gap between both the time waves) [58] through self-administered questionnaires prepared in English language as English is considered as the medium of communication across these organizations. The participants were asked to fill out the questionnaire for perceived organizational support and proactive personality at Time 1 (T1). One month later, data were collected at Time 2 (T2), where participants were asked to fill up the questionnaire for psychological empowerment and job satisfaction. The data were collected from the target respondents in a natural setting without any interference from the researcher.
By keeping in mind the possibilities of missing data and nonrespondents, our team approached 1200 full-time employees from manufacturing and services organizations. In response, we received back 1186 questionnaires, from which 936 were completed and valid; besides that, those with incomplete and missing data were removed from the analysis.
In the sample of 936 respondents, the majority were from services industries (821, 87.7%) and the remaining respondents belong to manufacturing industries (103, 11.0%); 651 participants were male, while 285 were females (30.4%). The average age of the respondents was 29.68 years (SD = 7.24) with average education level of 15.67 years (SD = 1.51). The average length of time spent with current organization was 5.06 years. In addition, the majority of the respondents were singles (501, 53.5%).

Measures
For measuring the study variables, well recognized and most extensively used scales were adopted from the previous studies.
Perceived organizational support Perceived organizational support was measured using eight-item scale developed by Eisenberger et al. [28]. Employees were requested to assess the degree of their perceived organizational support by using a five-point Likert scale ranging from 1 = strongly disagree to 5 = strongly agree. One of sample items is "My organization strongly considers my goals and values, " and its internal consistency was 0.88.
Job satisfaction We measured overall job satisfaction by a single-item scale developed by Scarpello and Campbell [64] that assessed participant's satisfaction with their current job on seven-point Likert scale ranging from 1 = not at all to 7 = very much. The item for overall satisfaction is "Do you mostly enjoy your work in this organization. " Psychological empowerment To measure psychological empowerment of employees, 12-item scale was used by Spreitzer [66]. The sample item is "The work I do is very important to me, " and it is measured on a fivepoint Likert scale ranging from 1 = strongly disagree to 5 = strongly agree. The internal consistency for this scale was 0.85.
Proactive personality Proactive personality was measured using 5-item scale developed by Janssen et al. [43]. Employees were asked for their proactive personality using a six-point Likert scale ranging from 1 = very strongly disagree to 5 = very strongly agree. The sample item is "wherever I have been, I have been a powerful force for constructive change, " and its internal consistency was 0.76.
Control variables We controlled for several potentially relevant variables including thriving at work (joint connection of learning and vitality), age (1 = less than 20 till 6 = 60 and above), gender (1 = male, 2 = female), marital status (1 = single, 2 = married, 3 = widow, 4 = divorced), education level (1 = graduate, 2 = postgraduate, 3 = doctorate) and tenure (1 = 0-5 till 5 = 21 and above). Previous research indicated that particularly age, marital status and years of experience significantly correlate with job satisfaction [45,54]. It is purported that gender differences should be given due consideration in the attitude-performance equation in the domain of organizational studies, as Crossman and Abou-Zaki [24] also suggested that job satisfaction level among males is generally more than females. The educational level is also critical as the employees with different educational levels exhibit diverse attitudes and satisfaction level at work [3]. Employee tenure is controlled due its impact on job satisfaction and POS. Owens et al. [57] noted that works at their beginning of job or career with particular organization are more excited and energetic about their work.

Data analysis
Frequency analysis was used to determine the demographic characteristics of the sample, descriptive statistics were used for control and study variables, reliabilities of scales were computed and correlation matrix was computed as well. Confirmatory factor analysis was conducted to test the construct validity of the measurement model, while regression analysis was used to test the moderated mediation hypotheses and validity of the model. Table 1 presents the mean, SDs, correlation values and Cronbach's alphas. Correlation coefficients are in the anticipated directions and provide preliminary support for our study hypotheses. For the control variables, it is examined that the relationship between gender and marital status is negatively significant (r = − 0.16, p < 0.01); age and gender (r = − 0.21, p < 0.01); and tenure and gender (r = 0.15, p < 0.01), and the relationship between tenure and marital status is positively significant (r = 0.43, p < 0.01); that between age and marital status (r = 0.59, p < 0.01) is positively correlated.

Confirmatory factor analysis
Confirmatory factor analysis (CFA) was conducted in order to determine instrument validity by using Fornell and Larcker [35] validity assessment criterion. At first, we examined full three-factor measurement model in which the items were permitted to associate substantially with their respective factors. Then, following up by other combination of our items related to our three study variables in AMOS 24 was examined. Results of our hypothesized full measurement model (perceived organizational support, proactive personality and psychological empowerment) represented a reasonably good fit, which can be seen in Table 2 The full measurement model was also compared with other different factor models in order to find out the best fit model for our data. Further, results showed that the full measurement model is the best fit model for our dataset and that other models did not provide an acceptable model fit at p < 0.05. The findings suggest that perceived organizational support, proactive personality and psychological empowerment are distinctive constructs.

Construct reliability and validity
The composite reliabilities (CR) of all of our study constructs lie within the range of 0.77 to 0.89, and AVE values are greater than 0.53; hence, the convergent validity is found to be satisfied. Besides, the criteria of discriminant validity set out by Fornell and Larcker [35] are also fulfilled, as AVE values of every construct of the study are found to be greater than their corresponding squared correlation.

Test for moderated mediation
In order to compute moderated mediation tests, hypothesized theoretical model was evaluated, in which the influence of POS on job satisfaction was seen via psychological empowerment that was conditional on proactive personality. Here, moderated mediation technique was used and was run in one step by using SPSS Process Macro Model 7 [60] with 95% confidence interval based on 5000 bootstrap samples. Further, the coefficients of the model were estimated, whereby proactive personality interacts with perceived organizational support to influence psychological empowerment of employees, which in return impacts job satisfaction. It is given that results of moderated mediation analysis are presented in Table 3. Firstly, the results support our assumptions for the hypothesized moderated mediation model. Secondly, when psychological empowerment is taken as outcome variable, Table 3 depicts the R 2 value which tells us that Table 2 Fit statistics from measurement model comparison All models are compared with full measurement model, i.e., five-factor model which includes (perceived organizational support, proactive personality, psychological empowerment, and thriving at work is divided into learning and vitality), where job satisfaction is excluded as it is a global measure. A. Three-factor model, where perceived organizational support and proactive personality are taken as a combined factor and psychological empowerment as a separate factor. B. Two-factor model, where psychological empowerment and perceived organizational support are combined into one factor and proactive personality as a separate factor. C. One-factor model, where psychological empowerment and proactive personality are combined into one factor and perceived organizational support as a separate factor. D. Onefactor model in which all four constructs are combined into one factor χ 2 Chi-square, df degrees of freedom, TLI Tucker-Lewis index, IFI incremental fit index, CFI comparative fit index, AGFI adjusted goodness-of-fit index, RMSEA rootmean-square error of approximation, SRMR standardized root-mean-square residual n = 936; **p < 0.05  psychological empowerment explains 25% of the variance in proactive personality in individuals and moderation is shown up by a significant interaction effect (β = − 0.10) that explains the relationship is negative and significant and also that as psychological empowerment increases, proactive personality decreases in the individuals. Given that p value p < 0.01, i.e., p = 0.00, shows that psychological empowerment is a highly significant predictor of proactive personality, then the boundaries of the zone of significance are between − 0.16 and − 0.04, which defines that psychological empowerment is significant to proactive personality.

Models
The model further illustrates the positive direct effect of job satisfaction on POS as β = 0.41, SE = 0.06, p < 0.01. The conditional indirect effect of job satisfaction on POS through psychological empowerment was probed at three different values of proactive personality: one SD below the mean (i.e., 3.80), on the average (4.40) and one SD above the mean (5.00). The indirect effect was significantly different from zero among low (β = 0.27, 95% CI = 0.15 to 0.41); average (β = 0.23, 95% CI = 0.14 to 0.33); and high (β = 0.19, 95% CI = 0.13 to 0.27) for proactive personality individuals. In addition, the index of moderated mediation reveals that the conditional indirect effect of psychological empowerment in the analysis of job satisfaction regressed on POS × PP is significant as indirect effect was − 0.07 and 95% bootstrapping CI of this relationship did not include zero (LLCI = − 0.16 to ULCI = − 0.04). Moreover, results demonstrated that the positive impact of POS on job satisfaction through psychological empowerment increases as proactive personality decreases in the employees. These findings are in the anticipated direction (Fig. 2).
Conditional indirect effect of X on Y can be estimated through the following regression equation: where X is the perceived organizational support (POS), Y is the job satisfaction, W is the proactive personality and M is the psychological empowerment.
This moderated mediation graph shows the indirect effects of POS on job satisfaction through psychological empowerment at higher (1 SD higher) and lower (1 SD lower) levels of proactive personality. These findings provided support for our Hypothesis 3 (Fig. 3).

Discussion
The main focus of the study was to examine the influence of POS on job satisfaction and to provide an insight into the complex mechanism of moderated mediation. Psychological empowerment functions as a mediator between POS and job satisfaction, and proactive personality showed an indirect effect on the association between POS and psychological empowerment. The current study findings provide support for the hypothesized model, which are as follows: Being consistent with Hypothesis 1, the results demonstrated the positive association between POS and job satisfaction. Our results supported the findings of Alcover et al. [5]. The results show that the positive role of POS on job satisfaction is persistent in case, when individuals perceive that their organization assesses their participation to the organizational goals favorably and are conscious about their welfare. Resultantly, they experience job satisfaction.
Favoring Hypothesis 3, the present study findings provide support for moderated linkage, corroborating the extent of the negative impact of proactive individuals whereby it weakens the relationship between POS and psychological empowerment. Proactive individuals help managers to progress in such environmental situations where individuals feel empowered to proactively involve in sustainable behaviors. Subsequently, the organizational support is not required by the employees as they create and impact job situations in their favor by themselves, rather taking organization's help. Thus, proactive personality has moderated the connection between POS and PE in a manner that the said association is robust when PP is less rather than high.

Theoretical contributions
This research offers imperative contribution in the literature by associating and encompassing the previous outcomes in multiple manners. Organizational behavior centers attention on a very few work-related attitudes, and POS and job satisfaction are two of them. The individuals and organizations are involved in a give-and-take relationship when research on the organization is considered. In establishing the proposed associations in the moderated mediation model, the current research will make several contributions.
First, we contributed to the research on POS by suggesting and confirming the positive association between POS (i.e., a characteristic where working behavior of individuals and attitudes are influenced by an individual's perception of main phenomenon that describes their organization) and job satisfaction (among thorough researched constructs in management research/ organizational behavior). Using social exchange theory, we contend that psychological empowerment can exert mediating effects linking POS and job satisfaction.
Psychological empowerment support employees in their decision making and problems solving thus providing independence and control. These results are of great significance as they give understanding into how employees or individuals may affect other individuals' psychological insights, learning and vitality at work, which in turn influence their behavior. Although past researches had not provided ample evidences for the linkage between psychological empowerment and proactive personality, we advanced the literature of proactive personality as a moderator.

Practical implications
Our findings contribute to overcoming the problems of employees in manufacturing and service sectors as the findings also provide practical implication for managers and practitioners. This research was able to manage a strong understanding of POS, job satisfaction, psychological empowerment and proactive personality.
Manufacturing and services managers should focus on creating and enhancing employee belongings stimulus to avoid the employee turnover. Organizations can strive to provide advocates that are customized to address individual employee's necessities. The individuals remain in the firm if he/she realizes a high support level (in terms of social and emotional support) [42]. If an employee receives the support, he/she will perceive it as favorable characteristic of a firm. For estimating the employee's performance in comparison with their jobs, job satisfaction is a vital feature that benefits the organization [42]. Managers must understand that every employee has different necessities and expectations which need to be fulfilled. Thus, they should provide support to their employees, including motivated working conditions, flexible working hours and fairly paid salary which resultantly can enhance job satisfaction.
The management should uphold and strengthen the prevailing levels of psychological empowerment and should make strategies to improve it as it can move toward work efficiency and satisfaction without financial expense. Management should empower employees through involvement, support system, information sharing, rewards, tasks handling and by providing chances to take decisions.
Proactive individuals are uneffected by situational factors and probably generate variations to mend their position in the organizational hierarchy [11]. The proactive and adaptable employees acquire and use support from their organization to make situation in their favour [25]. Organizations change their policies to be more socially supported by providing positive work-family association. Lastly, this study will offer assistance to managers who are interested in inspiring individual's satisfaction with his job by enhancing psychological empowerment, job satisfaction and POS within their organizations.

Limitations and future directions
Firstly, by investigating the variable associations, the research revealed an important relationship between PE and POS but still said the association needs more comprehensive explanation. A supposition regarding their association stated at the time when employees are empowered by the organization the organizational support is realized. Forthcoming studies should further explore the association between these variables.
The second potential limitation is that this research studied different manufacturing and services industries of Lahore, Pakistan; however, individuals from other cultures and identities may reveal diverse psychosomatic insights. Accordingly, comparisons can be observed by taking into account cultural differences.
The third limitation is that causality between the study variables cannot be drawn because of cross-sectional research design. So, it is suggested that future studies should conduct experimental/longitudinal strategies to discover the possible reciprocal relationships.
Our unit of analysis was individual based. Comparison was performed between the variables like individual's perceived organizational support effect on individual's job satisfaction, etc. So it is recommended that future research must include unit of analysis in the form of groups or departmental levels [67] as well as teams.
This research work observed the direct association between psychological empowerment and job satisfaction. In the future, it should be seen that psychological empowerment could have an indirect relationship with job satisfaction.
We controlled employee age, gender, marital status, educational level, job type and work experience in order to avoid confounding effects on examined relationships. As in future studies, these could be added as study variables with different demographic characteristics possessing different constituents or consequences of POS, job satisfaction, psychological empowerment and proactive personality.
Lastly, in the future, it is suggested that proactive personality could also function as a moderator of the other associations of the current study model, i.e., between psychological empowerment and job satisfaction. It is given that having the critical role of proactive behavior in organizations, effective measures should be taken to inspire employee proactivity. Examining these mechanisms would probably offer counselors, scholars and psychologists the substitutes for interventions in the future.

Conclusion
This research work makes vital additions in the fields of organizational behavior and applied psychology. The integrated study model revealed the relationship between POS and job satisfaction through the mediating role of psychological empowerment and the moderating impact of proactive personality. The practical findings provide support for organizational support theory and social exchange theory, which entails the groundings for the linkage between these associations. The study examines the intervening effect of psychological empowerment on the relationship between POS and job satisfaction. In addition, the study provides a contribution to the proactive personality by drawing attention to its indirect effect mechanisms that influence the relationship between POS and psychological empowerment. This research highlighted the importance of the fact that the organizations are not compelled to just focus on the empowerment of the employees but should also care for their well-being. The more they channelize the energies of their employees, the more they are satisfied with their job.