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| Δοκιμή Hausman με Χρονικά Μεταβαλλόμενες Παραμέτρους× | Έλεγχος Προδιαγραφών Hausman (FE έναντι RE)× | |
|---|---|---|
| Πεδίο | Οικονομετρία | Οικονομετρία |
| Οικογένεια | Regression model | Regression model |
| Έτος προέλευσης≠ | 1978 (Hausman); TVP extension developed through 1980s–2000s | 1978 |
| Δημιουργός≠ | Hausman (1978) specification test framework extended to time-varying parameter settings | Jerry A. Hausman |
| Τύπος≠ | Specification / endogeneity test | 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 | TVP Hausman test, time-varying Hausman specification test, Hausman test with time-varying parameters, TVP endogeneity test | Hausman specification test, FE vs RE test, Durbin-Wu-Hausman test, Hausman Spesifikasyon Testi (FE vs RE) |
| Συναφείς≠ | 3 | 5 |
| Σύνοψη≠ | The time-varying parameter Hausman test extends Hausman's (1978) classic specification test to models whose coefficients are allowed to evolve over time. It compares an efficient estimator (e.g., OLS or GLS assuming constant parameters) with a consistent estimator from a time-varying parameter model, using the contrast between them to detect parameter instability or endogeneity in dynamic settings. | 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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