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Specification tests for non-Gaussian structural vector autoregressions

Dante Amengual, Gabriele Fiorentini and Enrique Sentana

Journal of Econometrics, 2024, vol. 244, issue 2

Abstract: We propose specification tests for independent component analysis and structural vector autoregressions that assess the cross-sectional independence of non-Gaussian shocks by comparing their joint cumulative distribution with the product of their marginals at both discrete and continuous grids of argument values, the latter yielding a consistent test. We explicitly consider the sampling variability from computing the shocks using consistent estimators. We study the finite sample size of resampled versions of our tests in simulation exercises and show their non-negligible power against a variety of empirically plausible alternatives. Finally, we apply them to a dynamic model for three popular volatility indices.

Keywords: Consistent tests; Copulas; Finite normal mixtures; Independence tests; Pseudo maximum likelihood estimators; Volatility indices (search for similar items in EconPapers)
JEL-codes: C32 C52 C58 (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:eee:econom:v:244:y:2024:i:2:s0304407624001490

DOI: 10.1016/j.jeconom.2024.105803

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