Porovnat metody
Prohlédněte si vybrané metody vedle sebe; řádky, které se liší, jsou zvýrazněny.
| Stochastická analýza mezních produktů (SFA)× | Kvantilová regrese× | |
|---|---|---|
| Obor | Ekonometrie | Ekonometrie |
| Rodina | Regression model | Regression model |
| Rok vzniku≠ | 1977 | 1978 |
| Tvůrce≠ | Aigner, Lovell & Schmidt (1977); Battese & Coelli (1995) for panels | Koenker & Bassett |
| Typ≠ | Frontier regression model | Conditional quantile regression |
| Původní zdroj≠ | Aigner, D., Lovell, C.A.K. & Schmidt, P. (1977). Formulation and Estimation of Stochastic Frontier Production Function Models. Journal of Econometrics, 6(1), 21–37. DOI ↗ | Koenker, R. & Bassett, G., Jr. (1978). Regression Quantiles. Econometrica, 46(1), 33-50. DOI ↗ |
| Další názvy≠ | SFA, stochastic frontier model, stochastic production frontier, Stokastik Sınır Analizi (SFA) | conditional quantile regression, regression quantiles, Kantil Regresyon |
| Příbuzné≠ | 3 | 5 |
| Shrnutí≠ | Stochastic Frontier Analysis is a frontier regression model, introduced by Aigner, Lovell and Schmidt in 1977, that estimates a production, cost, or profit function while separating each unit's technical inefficiency from ordinary statistical noise. It splits the error term into a symmetric random component and a one-sided inefficiency component, producing firm- or country-level efficiency scores. | 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. |
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