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Innovation has always been a hot topic in the management circles. Now in the fierce market competition, a single organization becomes more and more dependent on external resources, especially knowledge resources, for innovation. The importance of knowledge Management in network has been more and more widely recognized as network organization, which has become an effective form of access to external resources. This paper summarizes knowledge management in network from knowledge integration and knowledge acquisition. This article also analysis the relation between knowledge management in network and innovation openness empirically by collecting data with questionnaire survey and using regression analysis method with the help of SPSS. Researchers find that knowledge acquisition has an intermediary role in innovation openness and knowledge integration. The study can deepen the understanding about the mechanism of innovation openness and knowledge management in network, provide some suggestions to solve the issues, and improve innovation performance in the organization.

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：With the improvement of the overall quality of the labor force and the slowdown development of economic growth, the employment opportunities that the society can provide can not keep up with the growth rate of people's employment demand. More and more people have to accept low-demand work, and there has been a phenomenon of "overqualification" over the world. This paper reviews and combs the existing literature at home and abroad from four aspects: definition, structural measurement, antecedent research and impact results, and constructs an integrated analysis framework with overqualification and future research directions. Suggestions and prospects are presented to provide a reference for future research directions.