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This study explores the association between task conflict and team creativity and the role of group cognitive complexity (GCC) as a potential explanatory mechanism in a sample of 159 students organized in 49 groups. Moreover, we analyzed the moderating effect of collective emotional intelligence (CEI)in the relationship between task conflict and GCC.As hypothesized, we found that task conflict has a nonlinear relationship with GCC, but contrary to our expectations, it follows a U-shaped association, not an inversed U-shape. In addition,the moderating role of CEI was significant only at low levels. Contrary to our expectation, the mediating role of GCC did not receive empirical support. Theoretical and practical contributions are discussed.

PurposeThe authors present a fist attempt to test the mediating role of humor in the relation between unruly passenger behavior and occupational stress in cabin crews.Design/methodology/approachThis study used an experience sampling design to investigate the relationship between a frequent job hassle in air service provision, namely unruly passenger behavior (UPB), and the stress experienced by flight attendants.FindingsThe results of multilevel analyses show that UPB is positively related to the use of aggressive humor and negatively related to the use of affiliative humor in cabin crews. Moreover, humor mediates the relationship between unruly passenger behavior and stress. In addition the results show that general self-efficacy as a personal resource buffers the association between passenger misconduct and the use of aggressive humor.Originality/valueThis study is among the first empirical attempts to explore the role of humor as a mediator between uncivil customer behavior and stress in air service employee.

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