Quasi Maximum Likelihood Estimation for Large-Dimensional Matrix Factor Models

Sainan Xu, Chaofeng Yuan and Jianhua Guo

Journal of Business & Economic Statistics, 2025, vol. 43, issue 2, 439-453

Abstract: In this study, we introduce a novel approach, called the quasi maximum likelihood estimation (Q-MLE), for estimating large-dimensional matrix factor models. In contrast to the principal component analysis based approach, Q-MLE considers the heteroscedasticity of the idiosyncratic error term, the heteroscedasticity of which is simultaneously estimated with other parameters. Interestingly, under the homoscedasticity assumption of the idiosyncratic error, the Q-MLE estimator encompassed the projected estimator (PE) as a special case. We provide the convergence rates and asymptotic distributions of the Q-MLE estimators under mild conditions. Extensive numerical experiments demonstrate that the Q-MLE method performs better, especially when heteroscedasticity exists. Furthermore, two real examples in finance and macroeconomics reveal factor patterns across rows and columns, which coincide with financial, economic, or geographical interpretations.

Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:taf:jnlbes:v:43:y:2025:i:2:p:439-453

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DOI: 10.1080/07350015.2024.2393724

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