Co-worker support, voluntary turnover intention and knowledge withholding among IT specialists: the mediating role of affective organizational commitment

Purpose: The purpose of this paper is to assess the effect of co-worker support on horizontal knowledge withholding and voluntary turnover intention among IT specialists. The study also explores the mediating role of affective organizational commitment. Design/methodology/approach: The data are drawn from 118 IT specialists from a Polish software company. The model is tested through partial least squares path modeling. Findings: The results revealed that the negative effect of co-worker support on voluntary turnover intention is fully mediated by organizational affective commitment. Contrary to expectations, co-worker support is not significantly negatively related to horizontal knowledge withholding. Research limitations/implications: The cross-sectional data, self-reports and small sample size are limitations of this study. The respondents were a relatively homogenous group of employees, so the generalizability of results to other employees and industries is limited. Practical implications: To increase affective organizational commitment and reduce voluntary turnover intention among IT specialists, managers should create the conditions to enhance co-worker support. Originality/value: This research clarifies the role of affective organizational commitment, which has proven to be a bridge linking co-worker support and voluntary turnover intention. Moreover, this research investigates the previously unexplored effect of co-worker support on horizontal knowledge withholding.