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| Μοντέλο Τυχαίων Συντελεστών (Random Effects Panel Model)× | Έλεγχος Προδιαγραφών Hausman (FE έναντι RE)× | |
|---|---|---|
| Πεδίο | Οικονομετρία | Οικονομετρία |
| Οικογένεια | Regression model | Regression model |
| Έτος προέλευσης | 1978 | 1978 |
| Δημιουργός≠ | Baltagi (textbook treatment); Hausman specification test | Jerry A. Hausman |
| Τύπος≠ | Panel data regression | Specification test for panel data models |
| Θεμελιώδης πηγή≠ | Hausman, J. A. (1978). Specification Tests in Econometrics. Econometrica, 46(6), 1251-1271. DOI ↗ | Hausman, J. A. (1978). Specification Tests in Econometrics. Econometrica, 46(6), 1251–1271. DOI ↗ |
| Εναλλακτικές ονομασίες | random effects panel regression, RE estimator, GLS panel estimator, Panel Rassal Etkiler Modeli | Hausman specification test, FE vs RE test, Durbin-Wu-Hausman test, Hausman Spesifikasyon Testi (FE vs RE) |
| Συναφείς | 5 | 5 |
| Σύνοψη≠ | The random effects model is a panel data estimator that explains an outcome using both within-unit and between-unit variation, treating the unobserved unit-specific heterogeneity as a random, normally distributed term rather than a fixed parameter. Its validity is judged with the Hausman (1978) specification test, and it is developed in standard treatments such as Baltagi's Econometric Analysis of Panel Data. | The Hausman test is a specification test, introduced by Jerry A. Hausman in 1978, that decides between the fixed-effects (FE) and random-effects (RE) estimators in panel data models. The null hypothesis is that the random-effects estimator is consistent and efficient and should be preferred; the alternative is that random effects is inconsistent and fixed effects is required because the unit-specific effects are correlated with the explanatory variables. |
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