GMM Estimation of a Stochastic Volatility Model: A Monte Carlo Study
- 1 July 1996
- journal article
- research article
- Published by Taylor & Francis in Journal of Business & Economic Statistics
- Vol. 14 (3) , 328-352
- https://doi.org/10.1080/07350015.1996.10524660
Abstract
We examine alternative generalized method of moments procedures for estimation of a stochastic autoregressive volatility model by Monte Carlo methods. We document the existence of a tradeoff between the number of moments, or information, included in estimation and the quality, or precision, of the objective function used for estimation. Furthermore, an approximation to the optimal weighting matrix is used to explore the impact of the weighting matrix for estimation, specification testing, and inference procedures. The results provide guidelines that help achieve desirable small-sample properties in settings characterized by strong conditional heteroscedasticity and correlation among the moments.Keywords
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