Knowledge that Transforms

A model investigating antecedents of perceived organizational support (POS) and the role of POS in predicting voluntary turnover was developed and tested in two samples via structural equation modeling. Both samples of employees (N = 215 department store salespeople; N = 197 insurance agents) completed attitude surveys that were related to turnover data collected approximately 1 year later. Results suggest that perceptions of supportive human resources practices (participation in decision making, fairness of rewards, and growth opportunities) contribute to the development of POS, and POS mediates their relationships with organizational commitment and job satisfaction. Further, POS is negatively related to withdrawal, but the relationships are also mediated.

This article extends and elaborates the perspective on entrepreneurship articulated by Shane and Venkataraman (2000) and Venkataraman (1997) by explaining in more detail the role of opportunities in the entrepreneurial process. In particular, the article explains the importance of examining entrepreneurship through a disequilibrium framework that focuses on the characteristics and existence of entrepreneurial opportunities. In addition, the article describes several typologies of opportunities and their implications for understanding entrepreneurship.