Can green human resource management promote employee green advocacy? The mediating role of green passion and the moderating role of supervisory support for the environment

As an emerging concept, employee green advocacy has received increasing attention in the research of marketing and business circles. However, few studies have examined the influence of green human resource management (GHRM) on employee green advocacy. Therefore, this study aims to explore the influence of GHRM on employee green advocacy and investigates the mediation role of green passion and the moderator role of supervisory support for the environment. Data collected from 334 employees from 15 companies in China at three time points. The results suggest that GHRM positively impacts green passion and employee green advocacy, green passion positively impacts employee green advocacy, green passion partially mediates the relationship between GHRM and employee green advocacy. Additionally, supervisory support for the environment moderates the positive relationship between GHRM and green passion and employee green advocacy.