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Heteroskedasticity in One-Way Error Component Probit Models

Richard Kouamé Moussa ()
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Richard Kouamé Moussa: ENSEA, Abidjan 08, Cote D’lvoire

Econometrics, 2019, vol. 7, issue 3, 1-22

Abstract: This paper introduces an estimation procedure for a random effects probit model in presence of heteroskedasticity and a likelihood ratio test for homoskedasticity. The cases where the heteroskedasticity is due to individual effects or idiosyncratic errors or both are analyzed. Monte Carlo simulations show that the test performs well in the case of high degree of heteroskedasticity. Furthermore, the power of the test increases with larger individual and time dimensions. The robustness analysis shows that applying the wrong approach may generate misleading results except for the case where both individual effects and idiosyncratic errors are modelled as heteroskedastic.

Keywords: heteroskedasticity; probit; panel data; Gauss–Hermite quadrature; Monte Carlo simulation (search for similar items in EconPapers)
JEL-codes: B23 C C00 C01 C1 C2 C3 C4 C5 C8 (search for similar items in EconPapers)
Date: 2019
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