قارن الطرق

	تأثيرات الأثر العشوائي المترابطة لموندلاك-تشامبرلين	نموذج التأثيرات الثابتة لبيانات السلاسل الزمنية المقطعية
المجال	الاقتصاد القياسي	الاقتصاد القياسي
العائلة	Regression model	Regression model
سنة النشأة	1978	2014
صاحب الطريقة	Yair Mundlak; Gary Chamberlain	Hsiao (textbook treatment); within transformation of panel data
النوع	Panel data estimator	Panel data regression
المصدر التأسيسي	Mundlak, Y. (1978). On the pooling of time series and cross section data. Econometrica, 46(1), 69–85.	Hsiao, C. (2014). Analysis of Panel Data (3rd ed.). Cambridge University Press.
الأسماء البديلة	Correlated Random Effects, CRE Estimator, Mundlak Device, Korelasyonlu Rassal Etkiler	fixed effects model, within estimator, panel fixed-effects regression, Panel Veri — Sabit Etkiler Modeli
ذات صلة	2	5
الملخص	The Mundlak-Chamberlain correlated random effects (CRE) estimator, introduced by Mundlak (1978) and extended by Chamberlain (1982), is a panel data technique that reconciles the fixed effects and random effects approaches by explicitly modelling the correlation between unobserved individual heterogeneity and the observed regressors. By including within-group means of time-varying covariates as additional regressors in a random effects framework, CRE yields estimates numerically equivalent to the within (fixed effects) estimator while permitting identification of time-invariant variables.	The Panel Data Fixed Effects model estimates relationships from panel data (the same units observed over several time periods) while controlling for unit- and/or time-specific effects, supporting causal inference. It is developed as the within estimator in standard treatments such as Hsiao's Analysis of Panel Data (2014).