方法对比
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| 面板广义最小二乘法 (Panel GLS)× | 面板随机效应模型× | |
|---|---|---|
| 领域 | 计量经济学 | 计量经济学 |
| 方法族 | Regression model | Regression model |
| 起源年份≠ | 1935 / developed for panels 1980s–1990s | 1966 |
| 提出者≠ | Aitken (1935); extended to panel data by Baltagi and others | Balestra & Nerlove |
| 类型≠ | Generalized linear regression | Panel data estimator |
| 开创性文献≠ | Wooldridge, J. M. (2010). Econometric Analysis of Cross Section and Panel Data (2nd ed.). MIT Press. ISBN: 978-0262232586 | Balestra, P., & Nerlove, M. (1966). Pooling cross section and time series data in the estimation of a dynamic model: The demand for natural gas. Econometrica, 34(3), 585–612. DOI ↗ |
| 别名 | Panel GLS, Generalized Least Squares for panel data, FGLS panel, feasible GLS panel | random effects estimator, RE model, GLS random effects, error components model |
| 相关≠ | 3 | 5 |
| 摘要≠ | Panel GLS is a regression method for longitudinal data that explicitly models the non-spherical error structure — heteroscedasticity across units and serial correlation within units — to recover efficient coefficient estimates. Unlike OLS, it weights observations by the inverse of the error covariance matrix, yielding the Best Linear Unbiased Estimator when the error structure is correctly specified. | The panel random effects (RE) model treats individual-specific effects as random draws from a population distribution rather than fixed constants, enabling efficient estimation by generalised least squares and allowing inference about time-invariant regressors that are swept away in fixed effects estimation. |
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