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Formal voice mechanisms and portfolio career workers’ prosocial voice in Japan and Korea: the mediating role of managers’ issue-related leadership activities

ABSTRACT This study analyses the relationship between formal voice mechanisms and prosocial voice among portfolio career workers (PCWs) in Japan and Korea. We particularly focus on the leadership activities of managers as human resource management agents and issue sellers. Under similar conditions, data on 400 and 409 PCWs in Japan and Korea, respectively, are gathered through web-based longitudinal surveys conducted in 2017 and 2018. The findings are threefold. First, when PCWs perceive that formal voice mechanisms are activated, they also rate the levels of their managers’ issue-related leadership activities more highly. Second, when PCWs evaluate the issue-related leadership activities of managers as being at a high level, they perceive that employment relations are based on a social exchange relationship. Third, when PCWs perceive employment relations based on a social exchange relationship, they provide their prosocial voice more actively. These results are discussed relative to the internal labour market models of Japan and Korea.