Collaborative Production in Science: An Empirical Analysis of Coauthorships in Economics
研究了经济学研究者如何选择合作者和项目，发现合作者更多的团队能产出更高影响力的论文，且不增加个人沟通协调成本，预示经济学研究团队规模将继续扩大。
Abstract This paper studies productivity and preferences in scientific research. Collaboration is increasingly important for innovation in science and other domains, but we have limited understanding of the factors researchers use to choose their collaborators and the projects they work on. Here, we use a model of strategic network formation and a recently developed econometric method to examine this question in the context of economics researchers. We learn that research teams with more collaborators tend to produce papers with higher impact, and without increasing individual costs of communication and coordination. This suggests the trend toward larger research teams in economics will continue.