Based on social exchange theory and social cognition theory, an integration model of organizational social network influencing enterprise collaborative innovation is constructed. This paper examines the relationship between organizational social network and enterprise collaborative innovation from the perspective of social exchange, and discusses the mediating role of knowledge sharing and the moderating role of digital construction based on social cognition theory. This paper used hierarchical regression analysis to empirically study high-tech enterprises in The Yangtze River Delta of China. This study draws the following conclusions: organizational social network has a significant positive impact on collaborative innovation of enterprises; knowledge sharing plays a partially mediating role in the relationship between organizational social network and enterprise collaborative innovation. Digital construction positively moderates the relationship between organizational social network and enterprise collaborative innovation.

This study focuses on the influence of organizational identity on knowledge employees' job performance and the mediating effect of work values. Job performance is divided into task performance and contextual performance and then a theoretical hypothesis model of organizational identity-work values-job performance is constructed based on the theory of social identity. Combined with the questionnaire data of 483 knowledge employees, the SEM was used to empirically test whether the theoretical hypothesis model was valid. It is found that organizational identity has a positive impact on knowledge employees' job performance, and work values partially mediate the relationship between organizational identity and job performance. Overall, the results show that improving the organizational identity level and work values of knowledge employees can promote their job performance. Finally, based on the results, the theoretical and practical implications of the study are discussed.INDEX TERMS organizational identity, work values, job performance, knowledge employees.