Volatility Estimation and Forecasting During Crisis Periods: A Study Comparing GARCH Models with Semiparametric Additive Models

Douglas Gomes dos Santos () and Flávio Augusto Ziegelmann ()
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Douglas Gomes dos Santos: Universidade Federal do Rio Grande do Sul (UFRGS)
Flávio Augusto Ziegelmann: UFRGS

Brazilian Review of Finance, 2012, vol. 10, issue 1, 49-70

Abstract: In this paper, we compare semiparametric additive models with GARCH models in terms of their capability to estimate and forecast volatility during crisis periods. Our Monte Carlo studies indicate a better performance for GARCH models when their functional forms do not differ from that of the specified Data Generating Process (DGP). However, if they differ from the DGP, the results suggest the superiority of additive models. Additionally, we perform an empirical application in three selected periods of high volatility of IBOVESPA returns series, in which both families of models obtain similar results.

Keywords: volatility; semiparametric additive models; GARCH models; crisis (search for similar items in EconPapers)
JEL-codes: C14 C22 C52 C53 (search for similar items in EconPapers)
Date: 2012
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