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| Regressione quantilica× | OLS Robusto (OLS con Errori Standard Robusti)× | |
|---|---|---|
| Campo | Econometria | Econometria |
| Famiglia | Regression model | Regression model |
| Anno di origine≠ | 1978 | 1980 |
| Ideatore≠ | Koenker & Bassett | Halbert White |
| Tipo≠ | Conditional quantile regression | Linear regression with robust inference |
| Fonte seminale≠ | Koenker, R. & Bassett, G., Jr. (1978). Regression Quantiles. Econometrica, 46(1), 33-50. DOI ↗ | White, H. (1980). A heteroskedasticity-consistent covariance matrix estimator and a direct test for heteroskedasticity. Econometrica, 48(4), 817–838. DOI ↗ |
| Alias≠ | conditional quantile regression, regression quantiles, Kantil Regresyon | HC robust regression, White robust OLS, sandwich estimator OLS, OLS with robust standard errors |
| Correlati≠ | 5 | 6 |
| Sintesi≠ | 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. | Robust OLS applies ordinary least squares to estimate coefficients and then replaces the classical standard errors with heteroscedasticity-consistent (HC) standard errors — commonly called White standard errors. This leaves the point estimates unchanged while yielding valid t-statistics and confidence intervals even when the error variance is not constant across observations. |
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