Historical instruments and contemporary endogenous regressors*

• 成果类型: Article
• 署名作者: Casey, Gregory; Klemp, Marc
• 署名单位: Williams College; University of Copenhagen; Brown University
• 刊物名称: JOURNAL OF DEVELOPMENT ECONOMICS
• ISSN/ISSBN: 0304-3878
• DOI: 10.1016/j.jdeveco.2020.102586
• 发表日期: 2021
• 关键词: Long-run economic development; Instrumental variable regression

摘要

We provide a simple framework for interpreting instrumental variable regressions when there is a gap in time between the impact of the instrument and the measurement of the endogenous variable, highlighting a particular violation of the exclusion restriction that can arise in this setting. In the presence of this violation, conventional IV regressions do not consistently estimate a structural parameter of interest. Building on our framework, we develop a simple empirical method to estimate the long-run effect of the endogenous variable. We use our bias correction method to examine the role of institutions in economic development, following Acemoglu et al. (2001). We find long-run coefficients that are smaller than the coefficients from the original work, demonstrating the quantitative importance of our framework.