1. Introduction
Employee motivation to engage in knowledge sharing has been shown to result in a great deal of organizational effectiveness and success. Research has demonstrated that knowledge sharing can have a significant impact on important outcomes such as creativity, problem solving, and decision making [
1]. Valuable knowledge resides within the minds of individual employees, who share this knowledge with other individuals to enable the collective utilization of information. Despite the organizational benefits of knowledge sharing, employees are frequently unwilling to share their knowledge, as it turns their valuable knowledge into a public good. Knowledge sharing enables others to approach specialized knowledge and provides leeway to claim the associated benefits, such as reputation and status [
2].
Scholars have recently explored leadership as a tool to address this challenge and to facilitate knowledge sharing in organizations. The existing literature has provided initial evidence that different leadership styles, such as transformational, empowering, and respectful leadership, can facilitate knowledge sharing [
1,
3,
4]. However, the mechanisms through which leaders affect knowledge sharing at an individual level still have not been explored [
5]. Hence, Bavik et al. [
5] considered the extrinsic motivation of followers, in combination with their moral identity, as mechanisms linking ethical leadership to employee knowledge sharing. The present research depicts a follower-centric mechanism that focuses on subjective well-being and social media in combination with ethical leadership, in order to promote knowledge sharing in employees.
Organizations have recently become much more focused to setting up ethical codes and organizing ethical committees to ensure ethical compliance within the organization, as an ethical atmosphere is a key element of organizational culture, which affects the overall administrative strategies. It can empower satisfaction and commitment, which are essential for the comfort of employees. One of the main factors affecting employee welfare is leadership. Leadership portrays the association between manager and employee, in which the manager should understand how to deal with people. A leader acts with high stimulus and fine divine change to run a superior leadership style [
6,
7].
Ethical leadership refers to the demonstration of reliable approaches with suitable norms and values, as perceptible through a leader’s action and affiliations [
8]. Related to numerous leadership styles and factors, employees want ethical leadership due to its inherent characteristics, such as trust, equity, responsibility, ethicality, respect, and understanding of human rights. It assists employees in making intricate decisions, looking for useful guidance, and communicating opportunities, thus resulting in an increased feeling of empowerment and employees showing more willingness to share knowledge when working in stressful environments [
9].
In the organizational perspective, knowledge must flow inside the organization to facilitate growth and competitiveness. It is vital not only for individuals but also for organizations to improve their performance and to confront ethical conflicts [
10,
11,
12]. Organizations must help their employees to practice KS by providing them a healthy and caring atmosphere [
13]. Organizations have recently become more focused on establishing ethical working climates, as this is a key element of organizational culture affecting overall managerial policies.
In some situations, an organization undergoes an inactive flow of KS—for example, when employees perceive themselves as strangers due to the embarrassing actions of others, leading to feelings of worthlessness—which is not beneficial for the well-being of the organization or its employees; this kind of differentiation invites pessimistic attitudes and feelings [
14].
The current study highlights the aspects necessary to encourage KS behavior among employees, concentrating on the leadership techniques which can motivate the KS behavior of employees. This relates to motivating employees to transform their qualified knowledge into organizational knowledge, even though several studies have been carried out considering knowledge as a source of competitive advantage, as well as how to generate, maintain, share, and use it inside an organization [
13].
Employees are considered important assets of organizations; for this reason, there has been a recent increase in interest in their subjective well-being, due to serious problems such as rethinking goals, social adjustment, psychological capacity, and employee happiness. Incidentally, it has been identified that ethical leadership characteristics can predict the dimensions of SWB [
15]. Subjective well-being suggests frequent pleasant emotions, infrequent unpleasant emotions, and life satisfaction, where these three factors are are combination of cognitive and affective components. Cognitive effects are based on an individual’s beliefs and attitudes about their own life, while affective effects are based on their positive or negative feelings. Overall, SWB indicates what an individual thinks and feels about their life [
16,
17].
The significance of social media and its number of users have been increasing dramatically, where workplace and companies have been strategically implementing such tools to support their employees and improve their abilities [
18]. Facebook, Instagram, Twitter, and Whatsapp, among others, are platforms where people can connect with each other, share their opinions, and enhance KS [
19,
20]. Many different researchers have different views about SM and have devoted their attention to exploring the influential factors of SM, such as with respect to technological, organizational, and environmental frameworks, but have not shown how SM assists in character building and recognition [
21,
22]. Perceived supervisor support (PSS) theory explains the model of the current study and highlights the following points [
23]: leaders are supportive when they believe and have confidence in employee competencies, value their contributions, offer assistance, and are concerned about their happiness.
Ethical challenges in the workplace have recently become a critical issue. Due to the intensive human interactions in the hospitality industry, employees confront the challenges of ethical decision-making and ethical dilemmas. Ethical business practices add value for customers and increase business profitability and efficiency [
24]. However, researchers have found that, regardless of the importance of ethics, it is not generally emphasized by managers in the hotel industry [
25]. Therefore, by identifying and reducing the ethical perception gaps with respect to the hospitality industry, the current study will meet the perception of the hospitality industry through practicing ethical leadership and imposing ethical values.
The hotel industry of Pakistan was selected for data collection. This industry is proliferating among industries of Pakistan. According to the World Travel and Tourism Council 2019, the contribution of hotel industry in GDP was 10.3%. This industry is eminent source of foreign exchange earnings of Pakistan. Hotel industry of Pakistan has capacity to provide employment opportunities to large number of people. Hotel industry contribution to employment grows 3% in 2019 (WTTC, 2019).
This study has two research questions: First, can ethical leadership increase KS when employees face indifferent behavior and become emotionally cold? Second, do subjective well-being and SM successfully mediate between ethical leadership and knowledge sharing? This study has the following major contributions, which fill gaps in the literature; previous research has examined SWB and SM separately, but this study combines both into one model (as mediators). Furthermore, previous studies have examined the effect of social media on KS, but we study SM through the aspects of social interaction and recognition to enhance KS.
This study was conducted in a non-Western country (Pakistan), examining leader behavior through the lens of moral values and investigating ethical leader behavior as a predicator of KS. We also try to identify whether ethical leadership fosters an ability to care about the emotions, well-being, and individuality of employees. Last, we test a serial mediation model, in an attempt to identify the affiliation between ethical leadership and knowledge sharing through the mediating effects of subjective well-being and social media.
3. Research Methodology
3.1. Sample and Procedure
The data in this study were gathered under a research project that aimed to look into the relationships between ethical leadership and knowledge sharing (KS) with the mediating role of subjective well-being (SWB) and social media (SM) in employees of the hospitality industry (Hotel) in Pakistan.
Figure 1 describe the graphical relationship among study variables.
Hotel industry of Pakistan was selected for data collection. This industry is proliferating among industries of Pakistan. According to the World Travel and Tourism Council 2019, the contribution of hotel industry in GDP was 10.3. This industry is eminent source of foreign exchange earnings of Pakistan. Hotel industry of Pakistan has capacity to provide employment opportunities to large number of people. Hotel industry contribution to employment grows 3% in 2019 (WTTC, 2019).
At present, the concentration of the industry is to bring the continuous innovation in their working style—which is realistically possible by managing uncertainties and developing the emotions of employees toward KS [
77]. An insecure environment shapes ruthless strain among employees and, if a manager fails to create feasible opportunities, then several psychological disorders could result in the employees. Previous studies have confirmed that many psychological issues are caused by environmental factors, not personal weaknesses [
78,
79].
For our research, we chose the 500 employees of the 10 best downtown hotels of metropolitan cities of Pakistan such as Faisalabad, Lahore, Islamabad and Karachi and requested to participate in this study three times, with a 2-week lag time. Due to time saving and cost-efficient approach, the convivence sampling method was applied to collect data from desired respondents.
Before collecting data, we contacted the associated HR departments for approval, collected the list of managers and employees of different departments, and confirmed that these organizations honored employee emotions towards KS. During the meeting, the following questions were emphasized:
Does your company give value employees ideas, well-being and individuality?
Do you provide time-to-time opportunities to your staff to participate in decision making?
Data were collected from both leaders and followers, in order to reduce the threat of common method variance. Therefore, managers and employees in human resource, information technology, marketing, front office, and guest relationship representative departments were included for data collection. Face-to-face meetings were arranged to inquire about participants’ potential willingness to take part in the survey before the questionnaires were given to the different departments. We did not know any respondent personally and made sure that they read the instructions and statement of confidentiality attached with questionnaire, stating: Please read the instructions carefully, complete the attached questionnaire and your honesty is highly appreciated. In addition, we provided envelopes and advised respondents to place their complete questionnaires in the envelope, seal it, and hand it to the relevant departmental manager.
The potential participants mostly engaged in office work where communication was essential. Data were obtained from 105 department managers (supervisors) and 395 employees (subordinates), with a minimum of 5 employees working under 1 manager, and the information and answers of all participants were kept confidential. Each form was marked with a specific ID, to match the feedback forms from time one to time three. For time one (i.e., the first survey), we collected the demographic information of leaders and asked the subordinates to rate the ethical leadership level in their workplace, as well as to share their individual background information. For time two (i.e., the second survey), we requested the same subordinates to rate their SWB and SM with respect to their workplace. For time three (i.e., the third survey), we requested each leader to rate their subordinates with regard to KS.
A total of 500 constructive questionnaires were distributed, of which 406 constructive questionnaires (94 supervisor and 312 subordinates) were collected after the elimination of incomplete responses, with a response rate of 81%. Of the 406 participants, 70% were male respondents and 30% were females. 60% respondents were between the age of (26–35 years), 80% of them had at least master degree. Very few (20%) respondents had bachelor degrees. As far as organizational tenor is concerned, 60% respondents had worked there more than 5 years and only 10% had worked there less than 1 year.
3.2. Survey Measures
The questionnaire was designed in English after an extensive literature review, which was based on pre-existing measures and a pre-test conducted to ensure participant identity and content accuracy before the final exchange. Six PhD scholars analyzed the questionnaires after managers of the selected organizations had examined it thoroughly and minor corrections were made after their suggestions. A 5-point Likert scale, ranging from “strongly disagree” to “strongly agree”, was applied to evaluate ethical leadership, knowledge sharing, subjective well-being, and social media.
Table 1 provides the complete description of measures. Please see the questionnaire of all items in
Appendix.
3.3. Control Variables
We collected demographic variables such as age, gender, and experience, according to previous studies, as these variables have the capacity to influence the tendency of an employee’s towards sharing knowledge with others.
3.4. Analytical Strategy
The partial least squares variance-based structural equational modeling approach (using PLS 3.2.6) recommended by Ringle [
83] was applied to examine our research model. We used PLS because (1) the research model was complex, according to the type of relationships hypothesized (i.e., both direct and mediation) and its level of dimensionality (i.e, containing both first- and second-order constructs); and (2) we utilized latent variable scores in subsequent analyses of predictive relevance in the implementation of the two-stage approach for modeling the multi-dimensional construct. Evaluation of the measurements and of the structural model was performed separately, following the guidelines of Hair et al. [
84]
5. Discussion
In this study, we examined the process by which ethical leadership enhances knowledge sharing (KS) among employees, as employees are influenced by the behavior of leaders, who probe employee feelings for KS. Our results showed that ethical leadership is positively connected with KS, considering the mediating roles of subjective well-being (SWB) and social media (SM). After applying three-path mediation effects, our finding supports our hypothesis.
Ethical leaders give worth to the contributions of employees and understand their emotions, seeking to extend and promote friendly links. By attaining high psychological satisfaction/value, employees become more motivated for KS without any stress. Ethical leader transparency and meticulous communication open doors for employee knowledge sharing. Inspiring employees through role modeling and emotional support encourages them to think critically and share knowledge. Providing subordinates with more opportunities for self-determination serves to facilitate knowledge sharing. Other studies, such as [
41] and [
46], have provided further solid evidence of this relationship.
Our results also provide evidence that subjective well-being mediates the relationship between ethical leadership and knowledge sharing. The rationale behind this strong relationship is that ethical leadership improves SWB through care, self-belief, and confirming the helpfulness of employee’s ideas, which are helpful in their engagement in KS. Consequently, SWB encourages participation and reduces the generation of negative emotions in the workplace. Ethical leadership, through reducing anxiety and emotional instability, improves the subjective well-being of employees, thus promoting their knowledge sharing. Other studies, such as [
52] and [
53], have provided firm proof of this relationship.
Furthermore, our study findings exposed that social media also mediates the relationship between ethical leadership and knowledge sharing. In reason for this intervention is that social media can enhance work practices and enable new ways of knowledge sharing in organizations, thereby increase organizational competitiveness. An ethical leader can enhance the social individuality of employees by connecting them through social media (e.g., using Facebook or Twitter) and promoting leader–employee knowledge-based interactions. Our framework highlights the statistically significant importance of social media, under which employees change their choice from a freerider position to a co-operative strategy in which they share knowledge. Other studies, such as [
70] and [
68], have provided firm evidence of such relationships.
Finally, we tested whether ethical leadership could take an indirect approach to KS, as mediated through subjective well-being and social media interactions. By integrating the results of both mediators, we discerned a serial mediation function which operates in such way that ethical leadership encourages SWB in employees through hedonic values and social uniqueness through SM interaction, both of which serve to promote knowledge sharing. Other studies, such as [
61] and [
76], provides further evidence of this relationship.
5.1. Theoretical Contributions
The results of this study comprise essential contributions to the literature in several manners, primarily pointing out that a manager who shows ethical leadership characteristics can, indeed, enhance knowledge sharing (KS).
First, by simultaneously looking into the contextual and developmental factors, we upgrade the KS literature by setting up the perspective of employee emotions. This provides incredible enlightenment with respect to how ethical leadership should be considered as essential in the future future, in order to recognize employee emotions towards KS. Employees emotions indicate how they interpret their leader’s treatment and allows us to identify the relationships between ethical leadership and KS [
46]. Previous studies have found different, individual aspects which stimulates KS, such as thinking styles, culture, aptitude, and personality; aside from these earlier-acknowledged aspects, the leadership style has also been indicated as most decisive contextual factor to understand KS. We found that subjective well-being and social media were positively correlated with each other. The current approach clarifies the significant serially mediating effects of SWB and SM (developmental factors) and ethical leadership (contextual factors) on knowledge sharing within one model.
Our study also advances perceived supervisor support theory by explaining how an ethical leader has the ability to value employee contributions and offer emotional support. This theory presents new outlook and explanations, regarding how ethical leadership can increase self-awareness and decrease triviality and reticence [
26], as leaders may focus on the growth requirements of employees and allow them to face different challenges that encourage their progress and self-belief in their work. Furthermore, managers who demonstrate ethical leadership behaviors give a voice to employees in decision making and listen to what they say [
48].
High well-being employees are more likely to undertake a positive approach to KS under hectic work circumstances than those with low well-being. Differentiation in feelings and stress are intensified by a lack of opportunities to develop professionally. PSS theory presents moral outlook to lift the confidence of employees, through proper care and proving to them the value of their efforts, eventually leading to happiness, peace of mind, and a quality work–life balance. Our findings revealed that well-being has considerable impact on KS, where an employee who is enthusiastic about KS is more innovative [
60].
Our study also enriches the individuality of employees under the perspective of social identity and personality making. PSS theory states—how the quick response of leaders increases the efforts at workplace and make employees enthusiastic for KS [
8]. KS, as mediated through SM, leads to knowledge-seeking, contributions, and social interactions. Our findings revealed that SM platforms offer rapid knowledge flow and that ethical leaders can provide a welcoming approach through SM to improve communication and interactions with their employees [
61].
Finally, our findings theoretically support and develop that “social model of emotion” for KS and explain the significance of the feelings, levels of happiness, and individuality of employees [
6].
5.2. Practical Contributions
The results of the present study provide some practical insights which are ethically important in protecting the well-being and individuality of employees. We propose that the ethical behavior of leaders can enhance KS and, thus, cultivating ethical leadership is significantly important. Considering insufficient organizational resources, leaders are passionate to identify which dynamics are most complimentary for understanding employee’s emotions for KS. Therefore, the results of our research can facilitate managers, in this respect.
An organization should identify the significance of ethical leadership. We propose that the support of ethical manners has an intimacy intended to enhance KS, in the form of the fair treatment of employee’s self-confidence and showing concern for their well-being. Organizations should instruct and stimulate leaders to be energetic in their role by taking on their responsibilities, interacting with employees warmly, and giving direction, feedback, and moral support.
These results offer a practical structure through which organizations can analyze the level of happiness and individuality of employees. Managers should not overlook the learning and well-being environment where employees can share knowledge, which affects the psychological conditions of employees through several phases, such as job satisfaction, commitment, and engagement. We propose that, by having ethical leaders, an organization can facilitate the positivity of their employees, who consequently become more engaged in KS and can better protect themselves from emotional exhaustion.
According to previous results, emotional coldness is not genetic; when a working environment is psychologically safe, employees are led to KS and organizations can better carry out innovative and enthusiastic activities such as praise, innovation awards, and internal contests, in order to stimulate well-being and uniqueness. This strategy serves to strengthen the awareness of managers in identifying the conditions of employees and analyzing their past success—failure ratios.
Finally, an organization should consider the emotional care of employees and pay more attention to their desired satisfaction level. Managers should carry out flexible job design, open communication, and ethical practices, allowing employees to feel inner pride in their work and to eventually support KS.
5.3. Limitations and Future Research Directions
While the present research has meaningful outcomes, some inexorable deficiencies must be underlined, which can be helpful in designing future studies.
First, the research was carried out only in Pakistan and, so, it is not apparent to what level our results can be generalized. Furthermore, our research achieved significant results within a single organization type (hotels), thereby limiting our findings. Different and diverse organizational settings, such as banking, manufacturing, telecom, and health industries, may increase the credibility. Second, a cross-sectional method was applied for data collection, which may have generated ambiguity in clarifying causes and effects; therefore, future research should re-test the presented hypotheses by applying a longitudinal approach in each period, in order to verify the reasons and consequences. Third, while SWB and SM were found to be significant mediators between ethical leadership and KS, in the future other mediators can be tested, such as job crafting, autonomy, fear of future, happiness, and passion. Finally, the present research focused on how ethical leadership affects KS when employees become emotionally cold; in the future, ethical leadership and KS must also be explored under the framework of emotional exhaustion and reduction of personal accomplishment. Other leadership styles can also be considered, with a comparison of which style can create significant results.