Comparar métodos

	Bayesian Hausman Test	Modelo Bayesiano de Efeitos Aleatórios
Área	Econometria	Econometria
Família	Regression model	Regression model
Ano de origem	1978 (classical); Bayesian adaptations 1990s–2000s	1972–1995
Autor original	Bayesian reformulation of Hausman (1978); developed across Bayesian econometrics literature	Lindley & Smith (1972); extended by Gelman, Rubin and colleagues
Tipo	Specification test / model comparison	Bayesian hierarchical panel model
Fonte seminal	Hausman, J. A. (1978). Specification tests in econometrics. Econometrica, 46(6), 1251–1271.	Gelman, A., Carlin, J. B., Stern, H. S., Dunson, D. B., Vehtari, A., & Rubin, D. B. (2013). Bayesian Data Analysis (3rd ed.). CRC Press. ISBN: 978-1439840955
Outros nomes	Bayesian specification test, Bayesian endogeneity test, Bayesian FE vs RE test, Bayesian Durbin-Wu-Hausman	Bayesian hierarchical model, Bayesian mixed effects model, Bayesian multilevel model, BREM
Relacionados	5	5
Resumo	The Bayesian Hausman test is a Bayesian reformulation of Hausman's (1978) classical specification test, used to assess endogeneity or to choose between fixed effects and random effects panel models. Instead of a chi-squared test statistic, it uses posterior model probabilities or Bayes factors to compare competing specifications, fully incorporating prior uncertainty about model parameters.	The Bayesian random effects model combines panel-data random effects with a Bayesian prior framework, allowing unit-specific effects to be treated as draws from a population distribution whose hyperparameters are estimated from the data. This produces regularised, uncertainty-quantified estimates that borrow strength across units — particularly valuable for short panels, sparse groups, or settings where frequentist variance-component estimation is unstable.