Abstract
Organizational citizenship behaviors (OCBs) are essential for effective organizational functioning. Decisions by employees to engage in these important discretionary behaviors are based on how they make sense of the organizational context. Using fairness heuristic theory, we tested two important OCB predictors: manager trustworthiness and interactional justice. In the process, we control for the effects of dispositional factors (propensity to trust) and for system-based organizational fairness (procedural and distributive justice). Results, based on surveys collected from 120 employee–supervisor dyads, indicate that manager trustworthiness explains variance in OCBs over and above the variance accounted for by interactional fairness. Implications for theory and practice are discussed.