In recent years, attempts to capture and leverage a firm's knowledge resources have become a primary in the pursuit of competitive advantage. Knowledge sharing behaviors and its determinants has been identified as a major focus area for knowledge management. This paper explores the determinations of knowledge sharing by applying Ajzen's Theory of Planned Behavior. Through a field survey of 322 employees from 13 industries of China, we confirm that intrinsic motivators, organizational commitment, organizational climate, and abilities of knowledge sharing are the important determinations of know...