Estimation of stochastic volatility models with diagnostics

A. Ronald Gallant, David Hsiehb, George Tauchen

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Abstract

Efficient method of moments (EMM) is used to fit the standard stochastic volatility model and various extensions to several daily financial time series. EMM matches to the score of a model determined by data analysis called the score generator. Discrepancies reveal characteristics of data that stochastic volatility models cannot approximate. The two score generators employed here are 'semiparametric ARCH' and 'nonlinear nonparametric'. With the first, the standard model is rejected, although some extensions are accepted. With the second, all versions are rejected. The extensions required for an adequate fit are so elaborate that nonparametric specifications are probably more convenient.

Original languageEnglish (US)
Pages (from-to)159-192
Number of pages34
JournalJournal of Econometrics
Volume81
Issue number1
DOIs
Publication statusPublished - Nov 1997

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All Science Journal Classification (ASJC) codes

  • Economics and Econometrics

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