Abstract
This paper draws from two separate but complementary theories, namely social exchange theory and social identity theory, as a means of understanding the organizational antecedents of organizational commitment. Its purpose is to study the connections between the characteristics of work in the organization (a source of perceived organizational support), the characteristics of the organization (reflected in perceived external prestige), organizational commitment and turnover intentions. We test our assumption using a sample of 249 managers and a longitudinal design. The results show that perceived organizational support and perceived prestige are differently influenced by the characteristics of and in the organization. This suggests that the characteristics of the firm, reflected in the notion of perceived external prestige, play a complementary role to the characteristics of work in the organization, reflected in perceived organizational support, in shaping organizational commitment and turnover intentions.