Regression modelQuasi-experimental / causal inference
政策评估双重差分法
政策评估双重差分法（DiD）专门用于评估政府项目、法规或政策改革的因果效应。它比较了受政策影响的群体与可比的未受影响群体在政策实施前后的结果变化，从而将政策的净效应与预先存在的趋势和同期共有的冲击区分开来。
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来源
- Imbens, G. W., & Wooldridge, J. M. (2009). Recent Developments in the Econometrics of Program Evaluation. Journal of Economic Literature, 47(1), 5-86. DOI: 10.1257/jel.47.1.5 ↗
- Heckman, J. J., LaLonde, R. J., & Smith, J. A. (1999). The Economics and Econometrics of Active Labor Market Programs. In O. Ashenfelter & D. Card (Eds.), Handbook of Labor Economics, Vol. 3A (pp. 1865-2097). Elsevier. DOI: 10.1016/S1573-4463(99)03012-6 ↗
如何引用本页
ScholarGate. (2026, June 3). Difference-in-Differences for Policy Evaluation. ScholarGate. https://scholargate.app/zh/causal-inference/policy-evaluation-difference-in-differences
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