Does green commitment drive firm’s economic performance? The role of environmental green policies, green HRM and green procurement

This study examines how green commitment (GRC), environmental green policies (EGP), green HRM and green procurement (GRP) interact to influence firm’s economic performance (ECP). A cross-sectional questionnaire survey was administered to a sample of 209 firm managers from Tanzania’s manufacturing enterprises. Hayes PROCESS macro, an ordinary least squares regression-based model, was subsequently used to test the research hypotheses. The results reveal insignificant positive effect of GRC on ECP. However, GRC had significant positive effects on green HRM and GRP. Furthermore, green HRM and GRP exhibited significant positive effects on ECP. The findings underscore the mediating role of green HRM and GRP in translating GRC into improved firm’s ECP. Importantly, the coefficients of interaction terms and indices of mediated-moderation effects were positive and significant, providing sufficient evidence to conclude that EGP strengthen the effect of GRC on ECP through green HRM and GRP. The study offers practical insights for key stakeholders in the Tanzanian manufacturing industry on how to foster a green culture and develop internal green capabilities through green-oriented resource and policies that enhance long-term ECP. The study extends existing literature by providing an integrated empirical assessment of how GRC, EGP, green HRM and GRP jointly contribute to firms’ ECP.