“…Given that future‐oriented, improvement‐related actions are becoming increasingly important to organizational effectiveness (Choi, ), our study aims at unveiling the crucial antecedent and mechanism leading to the creative performance and change OCB of work teams. Drawing on the literature on affect, creativity, and OCB (e.g., George, ; Kim & Shin, ; Rhee, ; Shin, ; Tsai, Chi, Grandey, & Fung, ), we isolate positive group affective tone (PGAT) as a primary antecedent of team creative performance and team change OCB. Although scant prior research has identified collective efficacy (e.g., Kim & Shin, ), team reflexivity, and team promotion focus (e.g., Shin, ) as critical mediating mechanisms underlying the relationship between PGAT and team creativity.…”