Research on the influence of alliance portfolio network characteristics on enterprise innovation performance: Based on the empirical analysis of automobile manufacturing industry

This paper selects the formal standard formulation information of Chinese listed automobile manufacturing enterprises, uses co-drafting unit to construct technical alliance network, and negative binomial regression discuss influence network characteristic indicators combination on enterprise innovation performance. The results show that portfolio scale, diversity relationship strength all have a positive impact performance, which has important reference value for enterprises better create manage alliances.