Forecasting (LOG) Volatility Models
G.A. Christodoulakis and
S.E. Satchell
Discussion Papers from University of Exeter, Department of Economics
Abstract:
A number of volatility forecasting studies have led to the perception that the ARCH- and Stochastic Volatility-type models provide poor out-of-sample forecasts of volatility. This is primarily based on the use of traditional forecast evaluation criteria concerning the accuracy and the unbiasedness of forecasts. In this paper we provide an assessment of volatility forecasting. We use the Log- Volatility framework to show how the inherent noise in the approximation of the actual- and unobservable - volatility by the squared return results in a misleading forecast evaluation. We argue that evaluation problems are likely to be exacebated by non-normality of the shocks and that non-linear and utility-based criteria can be more suitable for the evaluation of volatility forecasts.
Keywords: ECONOMETRICS; ECONOMETRIC MODELS; FORECASTING TECHNIQUES; FORECASTS (search for similar items in EconPapers)
JEL-codes: C15 C52 C53 (search for similar items in EconPapers)
Date: 1998
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Persistent link: https://EconPapers.repec.org/RePEc:exe:wpaper:9814
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