เปรียบเทียบวิธี

	แบบจำลองผลคงที่ของข้อมูลพาเนล	แบบจำลองผลกระทบสุ่ม (Random Effects Panel Model)
สาขาวิชา	เศรษฐมิติ	เศรษฐมิติ
ตระกูล	Regression model	Regression model
ปีกำเนิด	2005	1978
ผู้ริเริ่ม	Baltagi (textbook treatment); Hausman test for FE vs RE choice	Baltagi (textbook treatment); Hausman specification test
ประเภท	Panel data regression	Panel data regression
แหล่งต้นตำรับ	Hausman, J. A. (1978). Specification Tests in Econometrics. Econometrica, 46(6), 1251–1271.	Hausman, J. A. (1978). Specification Tests in Econometrics. Econometrica, 46(6), 1251-1271.
ชื่อเรียกอื่น	within estimator, panel fixed effects, entity fixed effects model, Panel Sabit Etkiler Modeli	random effects panel regression, RE estimator, GLS panel estimator, Panel Rassal Etkiler Modeli
ที่เกี่ยวข้อง	5	5
สรุป	The fixed effects panel model estimates relationships in panel data (many units observed over time) by exploiting only the within-unit variation, so that unobserved time-invariant heterogeneity is controlled away. It is the central within estimator developed in Baltagi's Econometric Analysis of Panel Data (2005), and the choice between it and the random effects model is settled by the Hausman (1978) test.	The random effects model is a panel data estimator that explains an outcome using both within-unit and between-unit variation, treating the unobserved unit-specific heterogeneity as a random, normally distributed term rather than a fixed parameter. Its validity is judged with the Hausman (1978) specification test, and it is developed in standard treatments such as Baltagi's Econometric Analysis of Panel Data.