TWO ALGORITHMS FOR THE COMPUTATION OF POSTERIOR MOMENTS AND DENSITIES USING MONTE CARLO INTEGRATION

J. P. Hop and H. K. van Duk

No 272483, Econometric Institute Archives from Erasmus University Rotterdam

Abstract: Two algorithms, and corresponding FORTRAN computer programs, for the computation of posterior moments and densities using the principle of importance sampling are described in detail. The first algorithm makes use of a multivariate Student t importance function as approximation of the posterior. It can be applied when the integrand is moderately skew. The second algorithm makes use of a decomposition: a multivariate normal importance function is used to generate directions (lines) and one dimensional classical quadrature is used to evaluate the integrals defined on the generated lines. The second algorithm can be used in cases where the integrand is possibly very skew in any direction.

Keywords: Agricultural and Food Policy; Research Methods/Statistical Methods (search for similar items in EconPapers)
Pages: 50
Date: 1990
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Persistent link: https://EconPapers.repec.org/RePEc:ags:eureia:272483

DOI: 10.22004/ag.econ.272483

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