Probabilistic forecasts of volatility and its risk premia

Worapree Maneesoonthorn, Gael Martin, Catherine Forbes and Simone D. Grose

Journal of Econometrics, 2012, vol. 171, issue 2, 217-236

Abstract: The object of this paper is to produce distributional forecasts of asset price volatility and its associated risk premia using a non-linear state space approach. Option and spot market information on the latent variance process is captured by using dual ‘model-free’ variance measures to define a bivariate observation equation in the state space model. The premium for variance diffusive risk is defined as linear in the latent variance (in the usual fashion) whilst the premium for variance jump risk is specified as a conditionally deterministic dynamic process, driven by a function of past measurements. The inferential approach adopted is Bayesian, implemented via a Markov chain Monte Carlo algorithm that caters for the multiple sources of non-linearity in the model and for the bivariate measure. The method is applied to spot and option price data on the S&P500 index from 1999 to 2008, with conclusions drawn about investors’ required compensation for variance risk during the recent financial turmoil. The accuracy of the probabilistic forecasts of the observable variance measures is demonstrated, and compared with that of forecasts yielded by alternative methods. To illustrate the benefits of the approach, it is used to produce forecasts of prices of derivatives on volatility itself. In addition, the posterior distribution is augmented by information on daily returns to produce value at risk predictions. Linking the variance risk premia to the risk aversion parameter in a representative agent model, probabilistic forecasts of (approximate) relative risk aversion are also produced.

Date: 2012
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Citations: View citations in EconPapers (23)

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Working Paper: Probabilistic Forecasts of Volatility and its Risk Premia (2010)
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Persistent link: https://EconPapers.repec.org/RePEc:eee:econom:v:171:y:2012:i:2:p:217-236

DOI: 10.1016/j.jeconom.2012.06.006

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