手法を比較

	ベイズ分位点-分位点回帰	分位点回帰
分野	計量経済学	計量経済学
系統	Regression model	Regression model
提唱年	2015–2019	1978
提唱者	Bayesian QQ framework combines Sim & Zhou (2015) QQ regression with Bayesian quantile regression (Yu & Moyeed, 2001)	Koenker & Bassett
種類	Nonparametric quantile regression with Bayesian estimation	Conditional quantile regression
原典	Sim, N., & Zhou, H. (2015). Oil prices, US stock return, and the dependence between their quantiles. Journal of Banking and Finance, 55, 1–8.	Koenker, R. & Bassett, G., Jr. (1978). Regression Quantiles. Econometrica, 46(1), 33-50.
別名	Bayesian QQR, Bayesian QQ regression, Bayes quantile-on-quantile, BQQ regression	conditional quantile regression, regression quantiles, Kantil Regresyon
関連	6	5
概要	Bayesian Quantile-on-Quantile (BQQ) Regression extends the Sim-Zhou quantile-on-quantile framework by replacing frequentist local linear estimation with Bayesian posterior inference. For each pair of quantiles (theta of the outcome, tau of the predictor), the method yields a full posterior distribution over the slope, enabling uncertainty quantification across the entire bivariate quantile surface — a key advantage when sample sizes are moderate and tail quantiles are sparse.	Quantile regression models conditional quantiles of an outcome - the median, the 25th or 75th percentile, and so on - rather than the conditional mean that OLS targets. Introduced by Koenker and Bassett in 1978, it reveals how predictors act across the whole distribution, including its tails.