This study examines how research collaboration of firms affects the quality of their innovation outcomes using comprehensive patent data for firms in the world from 1991 to 2010. Identifying research collaboration by co-patenting relationships, we find that research collaboration with other firms, particularly with foreign firms, leads to substantial improvement in innovation quality. We also observe a positive effect of the brokerage in the global network, especially for firms with international collaboration links. These results are applicable to the effect on the quality of innovation achieved individually without any collaboration. Therefore, our findings emphasize the importance of links with a variety of partners, particularly with foreign partners to improve innovation performance. Finally, we find that the collaboration effect is larger in the 2000s than in the 1990s and varies depending on firm size and across countries.

中文翻译：

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全球研究合作网络如何影响创新质量？

本研究使用1991年至2010年全球公司的全面专利数据，研究了公司的研究合作如何影响其创新成果的质量。通过共同拥有专利关系确定研究合作，我们发现与其他公司（尤其是与外国公司）的研究合作企业，从而大大提高了创新质量。我们还观察到经纪业务在全球网络中的积极作用，特别是对于具有国际合作链接的公司。这些结果适用于在没有任何协作的情况下单独实现的创新质量的影响。因此，我们的研究结果强调了与各种合作伙伴（尤其是与外国合作伙伴）建立联系以提高创新绩效的重要性。最后，