What’s Your Identification Strategy? Innovation in Corporate Finance Research
研究了公司金融研究中因果识别技术的扩散过程，发现其始于1990年代中期，比经济学滞后20年，且年轻学者、经济学博士和顶尖机构研究者采用更快，同事和校友网络加速了扩散。
We study the diffusion of techniques designed to identify causal relationships in corporate finance research. We estimate that the diffusion started in the mid-1990s, lagged 20 years compared to economics, and is now used in the majority of corporate finance articles. Consistent with recent theories of technology diffusion, the adoption varies across researchers based on individuals’ expected net benefits of adoption. Younger scholars, holders of PhDs in economics, and those working at top institutions adopt faster. Adoption is accelerated through networks of colleagues and alumni and is also facilitated by straddlers who cross over from economics to finance. Our findings highlight new forces that explain the diffusion of innovation and shape the norms of academic research. This paper was accepted by Gustavo Manso, finance.