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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.
Roman Kmieciak (Tue,) studied this question.