The cross-sectional relation between conditional heteroskedasticity, the implied volatility smile, and the variance risk premium
Louis H. Ederington and
Journal of Banking & Finance, 2013, vol. 37, issue 9, 3388-3400
This paper estimates how the shape of the implied volatility smile and the size of the variance risk premium relate to parameters of GARCH-type time-series models measuring how conditional volatility responds to return shocks. Markets in which return shocks lead to large increases in conditional volatility tend to have larger variance risk premia than markets in which the impact on conditional volatility is slight. Markets in which negative (positive) return shocks lead to larger increases in future volatility than positive (negative) return shocks tend to have downward (upward) sloping implied volatility smiles. Also, differences in how volatility responds to return shocks as measured by GARCH-type models explain much, but not all, of the variations in excess kurtosis and multi-period skewness across different markets.
Keywords: Implied volatility; Volatility smile; Variance risk premium; GARCH; Conditional heteroskedasticity (search for similar items in EconPapers)
JEL-codes: G13 G10 G12 (search for similar items in EconPapers)
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Persistent link: https://EconPapers.repec.org/RePEc:eee:jbfina:v:37:y:2013:i:9:p:3388-3400
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