เปรียบเทียบวิธี

	การศึกษาเหตุการณ์ในข้อมูลพาเนล (Policy Evaluation Panel Event Study)	ระเบียบวิธีสังเคราะห์หน่วยควบคุม (Synthetic Control Method: SCM)
สาขาวิชา	การอนุมานเชิงสาเหตุ	การอนุมานเชิงสาเหตุ
ตระกูล	Regression model	Regression model
ปีกำเนิด	2021	2010
ผู้ริเริ่ม	Callaway & Sant'Anna (2021); Borusyak, Jaravel & Spiess (2024); Sun & Abraham (2021)	Abadie, Diamond & Hainmueller
ประเภท	Causal inference / quasi-experimental panel design	Counterfactual causal-inference model
แหล่งต้นตำรับ	Callaway, B., & Sant'Anna, P. H. C. (2021). Difference-in-differences with multiple time periods. Journal of Econometrics, 225(2), 200-230.	Abadie, A., Diamond, A., & Hainmueller, J. (2010). Synthetic Control Methods for Comparative Case Studies: Estimating the Effect of California's Tobacco Control Program. Journal of the American Statistical Association, 105(490), 493-505.
ชื่อเรียกอื่น	panel event study, event-study DiD, staggered event study, difference-in-differences event study	synthetic control method, SCM, synthetic counterfactual, Sentetik Kontrol Yöntemi (SCM)
ที่เกี่ยวข้อง	6	5
สรุป	A panel event study is a quasi-experimental design that traces how an outcome evolves in periods before and after a policy event, using unit and time fixed effects to identify the causal effect. Widely used in economics and policy research, it tests for anticipation effects, verifies parallel pre-trends, and estimates dynamic treatment effects across post-treatment horizons — making it the standard toolkit for rigorous policy evaluation with observational panel data.	The Synthetic Control Method, introduced by Abadie, Diamond and Hainmueller in 2010, builds a weighted counterfactual for a single treated unit from a pool of untreated donor units. It is widely regarded as the gold standard for evaluating large policy interventions, natural experiments, and N=1 case studies where no obvious comparison unit exists.