Abstract
Although human capital and learning climate have been considered in the SHRM Literature as two critical predictors of organizational success, little efforts have been made to examining their role in knowledge sharing. Our research aims at filling this gap. Using data from 203 knowledge workers in seven Tunisian KIFs, our study provides evidence, on a first level, for a direct link between the five HR practices and knowledge sharing. On a second level, we report a mediating role of human capital. In congruence with prior SHRM research, this result implies that the knowledge-based HR practices influence the value and uniqueness of the employees' KSAOs, which in turn will improve their knowledge sharing behavior. On a third and final level, our results suggest that learning climate plays a mediation role as well. Such a result echoes recent research findings that confirmed the importance of learning climates in shaping employees' behaviors toward achieving specific organizational objectives. Our findings provide important insights on the intermediary mechanisms between HRM practices and knowledge sharing behavior in KIFs and offer interesting research perspectives on the under-theorized role of human capital in a knowledge sharing context.