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Leader-member exchange (LMX) generally refers to the leadership process centered on the interactions between leaders and direct reports. The basic premise of high quality leader-member exchange relationships holds that direct reports gain tremendous benefits through these partnerships. LMX is perhaps the most commonly researched theory of leadership. However, few studies have specifically examined the role of dyad members’ sex as a predictor of quality LMX. Several studies investigating the role of dyad members’ sex and quality LMX examined the effect of sex in an aggregated variable, demographic similarity, which often included other demographic characteristics such as age, education level and race, yielding mixed results. This article’s purpose is to (a) review the evolution of leader-member exchange theory, (b) examine literature regarding potential effects of sex of dyad members on quality leader-member exchanges, and (c) discuss implications and future research concerning the role of dyad members’ sex and leader-member exchanges.

Accumulating evidence suggests that Team-member exchange (TMX) influences employee work attitudes and behaviours separately from the effects of leader-member exchange (LMX). In particular, little is known of the effect of LMX differentiation (in-group versus out-group) as a process of social exchange that can, in turn, affect TMX quality. To explore this phenomenon, this chapter presents a multi-level model of TMX in organizations, which incorporates LMX differentiation, team identification, team member affect at the individual level, and fairness of LMX differentiation and affective climate at the group-level. We conclude with a discussion of the implications of our model for theory, research, and practice.

With the increasingly intensifying competition and the development and maturity of the modern organization, employees have no longer fully been attached to the organization. The employee‐organization relationship gets more and more attention. As spokespersons of their organizations, the leaders in all levels, to a considerable extent, have an effect on the understanding of the employee for the organization. The purpose of this paper is to explore leader and member exchange (LMX) relationships' impact on employees' organizational commitment and discuss the mediating effect of perceived organizational support (POS) during the period.

A sample consisting of 423 employees in four organizations was investigated. After testing the reliability of all questionnaires, the authors constructed a model of the mediating effect of POS between LMX relationships' impact on employees' organizational commitment and used structural equation model technology to verify it.

The results showed that: affect, loyalty and professional respect have a significant impact on affective commitment but the result of the contribution is not significant. So, work exchange (contribution) was different from social exchange (affect, loyalty and professional respect) in the influence on employee's organizational affective commitment. POS had an intermediary effect between the affect exchange and affective commitment in the organization. Leader‐membership has an important implication for the employee‐organization relationship. The exchanges of different dimensions between the leader and the member were different no matter for the affected contents of the attitude to the organization of the employee or for the affecting mechanism.

All variable data came from the same employee questionnaires, which may lead to potential problems of same source bias or common method variance. In order to test the influence of common method variance, this research carried out Harman's one‐factor test.

The organization should emphasize developing the relationship between the leaders from various levels and the members, and in particular the social exchange out of the work must not be neglected.

The present study explores LMX's influence on employees' affective commitment towards the organization from a social exchange perspective. The authors adopted multi‐dimensions LMX, which is different from prior studies (e.g. Wayne et al. and Zhou and Bao) to discuss the mechanism of LMX's impact on subordinates' attitudes to the organization.

Relying on the principles of the social exchange theory, the current study is aimed at investigating the impact of team-member exchange relationships (TMX) among school management team (SMT) members on school outcomes (organizational citizenship behavior [OCB], job satisfaction and innovation) via the mediating role of leader-member exchange (LMX) relationships between principals and SMTs.

Data were collected from multiple sources in 86 elementary and junior high schools to avoid one-source bias: 86 principals, 357 SMT members and 683 schoolteachers who were not members of the management teams.

The results revealed a positive relationship between TMX and teachers' job satisfaction and OCB, but no significant link between TMX and innovation. LMX partially mediated the relationship between TMX and OCB and between TMX and teachers' job satisfaction. Full mediation was found in TMX-innovation relationship.

The findings carry a message for school principals and policymakers regarding the importance of developing and maintaining high-quality horizontal and vertical exchange relationships among the SMT members for their positive influence on school outcomes.

To the best of the authors' knowledge, this is the first study to examine the link between TMX and LMX as a team phenomenon, and specifically in the educational setting. The finding that there is a positive link between the two constructs may imply that SMTs contribute to school success not only directly by exhibiting high-quality TMX but also indirectly through the high-quality LMX.

The purpose of this paper is to identify a number of limitations of the theory on leader‐member exchange (LMX). This paper aims to argue that under certain conditions high quality LMX can be dysfunctional. It proceeds to identify the antecedents and outcomes of dysfunctional LMX.

This paper examines the theory on LMX and justice to identify the conditions that lead to dysfunctional LMX and its consequences.

A review of the extant literature indicates that favouritism by the leader and the reliance on impression management by followers can lead to dysfunctional LMX. This can then lead to negative reactions from group members and undermine work group cohesiveness.

This paper points to new directions for research in LMX. It highlights the need to recognize that under certain conditions high quality LMX can be perceived as unfairness.

Managers need to recognize issues needing their attention in developing quality exchange with their subordinates. Failure to address these issues can undermine work group performance.

This study contributes to the debate on the role of LMX. Specifically, it attempts to add to the discussion in the emerging literature on dysfunctional LMX.

This paper aims to examine the mediating roles of self-efficacy and team commitment in linking service employees’ relative leader-member exchange (RLMX) with customer service behaviors and also the moderating roles of team-level differentiations in leader-member exchange (LMX) and team-member exchange (TMX) in influencing these mediation processes.

Data were collected from 467 customer-contact employees working in hotel restaurants. Hierarchical linear modeling analysis was used to test the mediation hypotheses, and moderated path was used to assess the moderated mediation.

Self-efficacy and team-commitment both mediated the relationship between RLMX and customer service behaviors. The differentiations in LMX and TMX significantly interacted with RLMX in predicting self-efficacy and team commitment and also moderated the indirect effects of RLMX on customer service behaviors.

Future studies need to incorporate customers’ or immediate supervisors’ ratings of subordinates’ customer service behaviors and replicate the findings in different countries and work settings.

Hospitality managers should foster a work environment wherein they develop equal quality relationships with their subordinates in a workgroup and promote high-quality relationships among subordinates in the workgroup to improve subordinates’ self-efficacy, team commitment and, subsequently, their customer service behaviors.

This study incorporates both self-efficacy and team commitment as motivation-based and social exchange-based mediators, respectively, in predicting customer service behavior. It also extends the boundary condition for the mediations by considering the team-level differentiations in both vertical exchange (LMX) and horizontal exchange (TMX).

Emotional intelligence (EI) is deemed important in developing interpersonal relationships. However, in the development of team-member exchange (TMX), the effect of EI on TMX and the team context have been largely ignored. For filling these gaps, this study explores the effect of employee EI on employee TMX and introduces EI-based leader-member exchange (LMX) differentiation as a team context to moderate the EI-TMX relationship.

Data were drawn from 51 teams (consisting of 293 followers and 51 team leaders) selected from 30 companies (across the industries of technology, real estate, commerce and manufacturing).

Results revealed that employee EI was positively related to employee TMX. EI acted as the basis of LMX differentiation (EI was positively related to LMX, EI variety was positively associated with LMX differentiation), and EI-based LMX differentiation acted as a favorable context for high-EI employees to develop high-quality TMX.

This study contributes to the understanding of EI’s significant and complex influence on interpersonal exchange relationships between leaders, followers and coworkers.

Although organizations expect employees to share knowledge with each other, knowledge hiding has been documented among coworker dyads. This paper aims to draw on social exchange theory to examine if and why knowledge hiding also occurs in teams.

Two studies, using experimental (115 student participants on 29 teams) and field (309 employees on 92 teams) data, explore the influence of leader-member exchange (LMX) on knowledge hiding in teams, as well as the moderating role of collective (team-level) prosocial motivation.

The results of experimental Study 1 showed that collective prosocial motivation and LMX reduce knowledge hiding in teams. Field Study 2 further examined LMX, through its distinctive economic and social facets, and revealed the interaction effect of team prosocial motivation and social LMX on knowledge hiding.

This study complements existing research on knowledge hiding by focusing specifically on the incidence of this phenomenon among members of the same team. This paper presents a multi-level model that explores collective prosocial motivation as a cross-level predictor of knowledge hiding in teams, and examines economic LMX and social LMX as two facets of LMX.

The purpose of this paper is to investigate the underlying mechanisms through which social media use for vertical and horizontal communication enhance employee performance.

To test the research model, the authors conducted a questionnaire survey in China. The authors used a customer panel database provided by a marketing research firm in China to identify appropriate respondents. Finally, the authors received 243 valid responses.

The authors find that social media use for vertical communication (SMUVC) is positively related to leader-member exchange (LMX) and social media use for horizontal communication (SMUHC) is positively related to team-member exchange (TMX). LMX and TMX are positively related to employee performance. LMX is positively associated with TMX. Besides, task complexity positively moderates the relationship between LMX and employee performance, while it negatively moderates the relationship between TMX and employee performance.

First, it adds to the literature by investigating the underlying mechanisms of how social media use for communication influences job performance. By identifying LMX and TMX as the underlying mechanisms, the authors make comprehensive considerations of how the vertical and horizontal relationships link the effect of social media use for communication on employee performance. Second, despite the growing evidence demonstrates that high-quality LMX and TMX can individually contribute to employee job performance, little research has considered both LMX and TMX relationships simultaneously and their effects on job performance. Finally, by establishing task complexity as a key moderator on the relationships between LMX and TMX and job performance, the study could explain the inconsistent findings in the literature that the effects of LMX and TMX are significant in some studies yet not significant in other studies.

The paper aims to establish the relationship between leader member exchange (LMX) relationship and work role performance through the dynamic process of employee engagement. The study outlines why and how leadership is important for employee engagement and effective work role performance. Adopting a survey based research design, a sample of 198 Indian working managers at different levels including various sectors has supported our hypotheses that employee engagement mediates the relations between LMX and work role performance. It provides empirical insights about how employee engagement process influences the LMX and work role performance relationships. The results also suggest that high quality relationship of employees with their leaders is positively related to employee engagement and their work role performance.