Estimation of stochastic volatility models with diagnostics

A. Ronald Gallant, David Hsiehb, George Tauchen

Research output: Contribution to journalArticle

139 Scopus citations


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
Issue number1
Publication statusPublished - Nov 1997


All Science Journal Classification (ASJC) codes

  • Economics and Econometrics

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