Fourth order pseudo maximum likelihood methods

Alberto Holly

doi:10.1016/j.jeconom.2011.01.004

Fourth order pseudo maximum likelihood methods

2011-06-01

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DOI：10.1016/j.jeconom.2011.01.004

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We extend PML theory to account for information on the conditional moments up to order four, but without assuming a parametric model, to avoid a risk of misspecification of the conditional distribution. The key statistical tool is the quartic exponential family, which allows us to generalize the PML2 and QGPML1 methods proposed in Gourieroux et al. (1984) to PML4 and QGPML2 methods, respectively. An asymptotic theory is developed. The key numerical tool that we use is the Gauss-Freud integration scheme that solves a computational problem that has previously been raised in several fields. Simulation exercises demonstrate the feasibility and robustness of the methods. (C) 2011 Elsevier B.V. All rights reserved.

Keyword:

Quartic exponential family

Pseudo maximum likelihood

Skewness

Kurtosis

Fourth order pseudo maximum likelihood methods

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