مقایسهٔ روش‌ها

	مدل اثرات ثابت با پارامترهای متغیر با زمان	مدل اثرات ثابت داده‌های پانل
حوزه	اقتصادسنجی	اقتصادسنجی
خانواده	Regression model	Regression model
سال پیدایش	1975-1995	2014
پدیدآور	Hsiao (1975); Pesaran & Smith (1995)	Hsiao (textbook treatment); within transformation of panel data
نوع	Panel regression with time-varying slopes	Panel data regression
منبع بنیادین	Hsiao, C. (2014). Analysis of Panel Data (3rd ed.). Cambridge University Press. ISBN: 9781107038875	Hsiao, C. (2014). Analysis of Panel Data (3rd ed.). Cambridge University Press.
نام‌های دیگر	TVP-FE model, time-varying coefficients fixed effects, TVP panel model, locally time-varying fixed effects	fixed effects model, within estimator, panel fixed-effects regression, Panel Veri — Sabit Etkiler Modeli
مرتبط	2	5
خلاصه	The time-varying parameter fixed effects (TVP-FE) model extends the classical two-way fixed effects panel regression by allowing one or more slope coefficients to change over time while still controlling for unobserved individual heterogeneity. It is used when the effect of a predictor on an outcome is not constant across the time dimension of a panel dataset.	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).