手法を比較

	ベイズパネルイベントスタディ	ベイジアン差分の差 (Bayesian Difference-in-Differences)
分野	因果推論	因果推論
系統	Regression model	Regression model
提唱年	2010s–2020s	2015-2023
提唱者	Developed from panel event-study literature (Sun & Abraham 2021; Freyaldenhoven et al. 2021) combined with Bayesian estimation frameworks	Li & Marchand (formal Bayesian DiD framework); Brodersen et al. (Bayesian causal inference in time series)
種類	Bayesian causal panel estimator	Bayesian causal inference / panel regression
原典	Freyaldenhoven, S., Hansen, C., Shapiro, J. M., & Teso, E. (2021). Visualization, Identification, and Estimation in the Linear Panel Event-Study Design. NBER Working Paper No. 29170. National Bureau of Economic Research.	Li, F., & Marchand, J. (2023). Bayesian inference for difference-in-differences. Econometrics Journal, 26(3), 509-529.
別名	Bayesian event-study estimator, Bayesian dynamic DiD, Bayesian panel ES, Bayes event study	Bayesian DiD, Bayes DiD, Bayesian diff-in-diff, Bayesian panel causal estimator
関連	4	5
概要	Bayesian Panel Event Study is a causal inference design that estimates dynamic treatment effects around a datable event using panel data, replacing classical frequentist estimation with Bayesian posterior inference. It produces period-by-period effect estimates with full probability distributions, enabling principled uncertainty quantification, regularization of noisy pre-trend coefficients, and probabilistic tests of parallel trends.	Bayesian Difference-in-Differences applies Bayesian statistical inference to the classic DiD design, replacing frequentist point estimates with full posterior distributions over the treatment effect. This yields not only an estimate of the causal effect but also a coherent probability statement about its magnitude and uncertainty, making it especially useful when sample sizes are modest or informative prior knowledge is available.