PERCEIVED ORGANIZATIONAL SUPPORT AND LEADER-MEMBER EXCHANGE: A SOCIAL EXCHANGE PERSPECTIVE.
基于社会交换理论，研究员工与组织和直接上级的交换关系（感知组织支持与领导-成员交换）的独特前因和不同结果，对组织行为研究者和管理者理解两种关系有参考价值。
Employees develop exchange relationships both with organizations and immediate superiors, as evidenced by research on perceived organizational support (POS) and leader-member exchange (LMX), respectively. Despite conceptual similarities between these two constructs, theoretical development and research has proceeded independently. In an attempt to integrate these literatures, we developed and tested a model of the antecedents and consequences of POS and LMX, based on social exchange theory. Results indicated that POS and LMX have unique antecedents and are differentially related to outcome variables, providing support for the importance of both types of exchanges.