Although social harmony is one of the most important cultural values in many of Asian societies it has rarely been studied in the mainstream management literatures. Based on the group-value theory of justice we examined how group justice climates influence group effectiveness through group harmony. Analyses of data on 106 upper-level management teams from Chinese organizations showed that justice climates were positively associated with group harmony, which in turn was positively associated with team task performance and team helping behavior. Group harmony was found to significantly mediate the positive effect of both distributive and interactional justice climates on team helping behavior but only marginally on team task performance. Finally, in support of past research both at the group and individual level, procedural justice climate had the weakest effect on group processes and outcomes. By applying the group value theory on group harmony this paper aims to integrate Eastern and Western perspectives on one hand and the justice climates and group harmony research on the other. Theoretical and practical implications are discussed.

In this article, a leadership model is presented, with which to investigate the relationship of trait emotional intelligence (trait EI), leadership self-efficacy and leader's task self-efficacy with collective task efficacy and group performance. The sample was made up of 217 undergraduate students, randomly assigned to work teams of 1 leader and 2 followers that were requested to perform a production task. An adapted version of the Schutte Self-Report Inventory (SSRI; Schutte et al., 1998) was used to measure trait EI. Structural equation modeling was used to test the hypothesized relationships. Results indicated that task self-efficacy was a mediator between leadership self-efficacy and collective task efficacy; the latter, in turn, was the best predictor of group performance. No significant relationship was found between trait EI and collective task efficacy although, unexpectedly, trait EI was positively associated with leadership self-efficacy. Implications of the results are discussed.