Existing research has shown that university–industry collaboration (UIC) helps a firm achieve superior innovation outcomes. However, little is known about how UIC affects firm innovation when considering interfirm alliances. In this paper, we examine the influence of UIC on firm innovation performance by considering the interfirm alliance network. Based on a panel of 285 biopharmaceutical firms across the world over a thirty-year period from 1985 to 2014, we find that UIC enhances firm innovation performance. More alliances with other firms hinder the positive effect of UIC on firm innovation, whereas technological diversity strengthens the influence of UIC. Theoretical and practical implications of the results are discussed.

现有研究表明，校企合作 (UIC) 有助于公司实现卓越的创新成果。然而，在考虑企业间联盟时，关于 UIC 如何影响企业创新，我们知之甚少。在本文中，我们通过考虑企业间联盟网络来检验 UIC 对企业创新绩效的影响。基于 1985 年至 2014 年 30 年间全球 285 家生物制药公司的小组，我们发现 UIC 提高了公司的创新绩效。与其他公司的更多联盟阻碍了 UIC 对公司创新的积极影响，而技术多样性增强了 UIC 的影响力。讨论了结果的理论和实践意义。