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| Модел на Хекман за корекция на селекция на извадката (Heckit / Tobit Type II)× | Модел с фиксирани ефекти за панелни данни× | Квантилна регресия× | |
|---|---|---|---|
| Област | Иконометрия | Иконометрия | Иконометрия |
| Семейство | Regression model | Regression model | Regression model |
| Година на възникване≠ | 1979 | 2014 | 1978 |
| Създател≠ | James J. Heckman | Hsiao (textbook treatment); within transformation of panel data | Koenker & Bassett |
| Тип≠ | Two-step sample selection model | Panel data regression | Conditional quantile regression |
| Основополагащ източник≠ | Heckman, J. J. (1979). Sample Selection Bias as a Specification Error. Econometrica, 47(1), 153–161. DOI ↗ | Hsiao, C. (2014). Analysis of Panel Data (3rd ed.). Cambridge University Press. DOI ↗ | Koenker, R. & Bassett, G., Jr. (1978). Regression Quantiles. Econometrica, 46(1), 33-50. DOI ↗ |
| Други названия≠ | heckit, tobit type II, sample selection model, Heckman Seçim Modeli (Heckit / Tobit II) | fixed effects model, within estimator, panel fixed-effects regression, Panel Veri — Sabit Etkiler Modeli | conditional quantile regression, regression quantiles, Kantil Regresyon |
| Свързани≠ | 4 | 5 | 5 |
| Резюме≠ | The Heckman selection model, introduced by James J. Heckman in 1979, is a two-step model that corrects sample selection bias when the outcome is only observed for a non-random subset of cases. A probit selection equation models who is observed, and the outcome equation then corrects for the resulting bias using the inverse Mills ratio. | The Panel Data Fixed Effects model estimates relationships from panel data (the same units observed over several time periods) while controlling for unit- and/or time-specific effects, supporting causal inference. It is developed as the within estimator in standard treatments such as Hsiao's Analysis of Panel Data (2014). | 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. |
| ScholarGateНабор от данни ↗ |
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