مقایسهٔ روشها
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| مدل خودرگرسیو پانل (Panel AR)× | مدل اثرات ثابت× | |
|---|---|---|
| حوزه | اقتصادسنجی | اقتصادسنجی |
| خانواده | Regression model | Regression model |
| سال پیدایش≠ | 1980s-2000s | 1971–1978 |
| پدیدآور≠ | Hsiao, C.; Arellano, M. | Mundlak (1978); Nerlove (1971); classical panel econometrics |
| نوع≠ | Autoregressive time-series model for panel data | Panel regression estimator |
| منبع بنیادین≠ | Hsiao, C. (2003). Analysis of Panel Data (2nd ed.). Cambridge University Press. ISBN: 978-0521522717 | Baltagi, B. H. (2021). Econometric Analysis of Panel Data (6th ed.). Springer. ISBN: 978-3030538002 |
| نامهای دیگر | panel autoregressive model, PAR model, AR model for panel data, panel AR(p) | FE model, within estimator, least squares dummy variable, LSDV regression |
| مرتبط | 5 | 5 |
| خلاصه≠ | The Panel AR model extends the classical univariate autoregressive model to panel data, capturing how each unit's own past values predict its current value while controlling for unobserved individual heterogeneity through fixed or random effects. It is foundational for modelling dynamic persistence in micro or macro panel datasets. | The fixed effects (FE) model is the workhorse estimator for panel data when unobserved unit-specific characteristics are suspected to correlate with the regressors. By absorbing each entity's time-invariant heterogeneity into a separate intercept, FE isolates the causal effect of within-unit variation and eliminates omitted-variable bias from time-constant confounders. |
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