中文摘要：

本研究在问卷调查的基础上，研究了员工资质过高感对工作绩效的影响，并基于公平理论和社会交换理论验证了组织中的交换关系对二者关系的调节效应。结果显示资质过高感对任务绩效无显著影响，对组织公民行为存在显著的正向影响。领导者一成员交换关系和个性化契约对以上关系具有一定的调节作用。

英文摘要：

There are increasing studies on overqualification in recent years. Using a sample survey data, this research examines the effects on job performance of the employee＇ s perceived overqualification （POQ）. Drawing on equity theory and social exchange theory, the moderating effects of within-organization exchange in the relationship between POQ and job performance are also explored. Results show that POQ has no significant impact on task performance, while significantly influencing organizational citizenship behavior （OCB）. Leader-member exchange （LMX） and idiosyncratic deals （I-deals） moderate the relationship between POQ and task performance, and between POQ and OCB.