关键词: 智能制造企业, 创新关联, 网络结构, 技术生态位

Abstract: This paper, taking the number of invention patents granted by listed intelligent-manufacturing enterprises in China from 2015 to 2020 as a sample, reveals the evolution law of innovation correlation network of intelligent-manufacturing enterprises using social network analysis. It makes a regression analysis on the innovation correlation network structure of intelligent-manufacturing enterprises and the “state” and “momentum” of technology niche. It is found that the innovation correlation network of intelligent-manufacturing enterprises is significantly related, and the correlation tends to be increasingly close. There is a significant inverted U-shaped relationship between the centrality of network degree and the “state” and “momentum” of technology niche but a significant inverted U-shaped relationship between the relationship intensity and the “state” and “momentum” of technology niche. The relationship between the structural hole and the “state” of technology niche is in a positively linear correlation. In the initial stage, the government should play a guiding role in policies, encourage more enterprises to invest in related fields of intelligent-manufacturing enterprises, and promote the development of their innovation correlation network. In the developing stage, the government should improve the centrality of network degree, structural hole and relationship strength, and avoid reducing the innovation ability of intelligent-manufacturing enterprises due to excessive dispersion. In the mature stage, the government should eliminate redundant links, obtain effective network resources, optimize network structure, and further ensure the innovation ability of intelligent-manufacturing enterprises.

Key words: intelligent-manufacturing enterprises, innovation correlation, network structure, technology niche