เปรียบเทียบวิธี

	Robust Quantile-on-Quantile Regression	การถดถอยควอนไทล์
สาขาวิชา	เศรษฐมิติ	เศรษฐมิติ
ตระกูล	Regression model	Regression model
ปีกำเนิด	2015–2020s	1978
ผู้ริเริ่ม	Sim and Zhou (2015) for QQ regression; robust extensions developed subsequently in the literature	Koenker & Bassett
ประเภท	Nonparametric quantile regression	Conditional quantile regression
แหล่งต้นตำรับ	Sim, N., & Zhou, H. (2015). Oil prices, US stock return, and the dependence between their quantiles. Journal of Banking & Finance, 55, 1–8.	Koenker, R. & Bassett, G., Jr. (1978). Regression Quantiles. Econometrica, 46(1), 33-50.
ชื่อเรียกอื่น	RQQR, robust QQ regression, robust quantile-on-quantile, outlier-robust QQR	conditional quantile regression, regression quantiles, Kantil Regresyon
ที่เกี่ยวข้อง	3	5
สรุป	Robust Quantile-on-Quantile Regression extends the QQ framework of Sim and Zhou (2015) by adding resistance to outliers and heavy-tailed distributions. It estimates how each quantile of one variable responds to each quantile of another, producing a full dependence surface while guarding against leverage points that can distort standard QQ estimates.	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.