방법 비교

	정책 평가 회귀 불연속 설계	퍼지 회귀 불연속 설계
분야	인과추론	인과추론
계열	Regression model	Regression model
기원 연도	1960; policy evaluation applications widespread from 2000s	2001
창시자	Thistlethwaite & Campbell (1960); popularized in policy evaluation by Lee & Lemieux (2010)	Hahn, Todd & van der Klaauw
유형	Quasi-experimental causal design	Quasi-experimental causal inference
원전	Lee, D. S., & Lemieux, T. (2010). Regression Discontinuity Designs in Economics. Journal of Economic Literature, 48(2), 281-355.	Hahn, J., Todd, P., & van der Klaauw, W. (2001). Identification and Estimation of Treatment Effects with a Regression-Discontinuity Design. Review of Economic Studies, 68(1), 201-209.
별칭	Policy RDD, RD design in policy evaluation, regression discontinuity policy analysis, RDD policy impact	Fuzzy RD, Fuzzy RDD, Fuzzy RD Design, Imperfect RDD
관련	5	5
요약	Policy Evaluation Regression Discontinuity Design (Policy RDD) exploits a known eligibility threshold in a policy rule to estimate the causal effect of that policy on outcomes. Units just below the cutoff serve as a credible comparison group for units just above it, making RDD one of the most transparent quasi-experimental strategies for assessing what a policy actually achieves.	Fuzzy Regression Discontinuity Design (Fuzzy RDD) estimates causal effects when eligibility for a treatment is determined by a threshold on a running variable but actual take-up of that treatment is imperfect — some eligible units do not receive treatment and some ineligible units do. The cutoff acts as an instrument, and the estimand is a Local Average Treatment Effect (LATE) for compliers near the threshold.