Abstract
We propose a career model that focuses on the antecedents of career success for managers and professionals within organizations. The model includes constructs rarely represented in the literature, and is based on conservation of resources theory. Testing our model with a sample of 545 managers, we found significant effect of positive and negative social capital, perception of organizational politics, professional vitality, and protean career attitude on internal and external career success, mediated by organizational commitment and met expectations, and moderated by chance event effect. This original contribution includes incorporating new constructs and concentrates upon factors enabling support for successful careers.