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"We analyze the volatility surface vs. moneyness and time to expiration implied by MIBO options written on the MIB30 …, the most important Italian stock index. We specify and fit a number of models of the implied volatility surface and find … that it has a rich and interesting structure that strongly departs from a constant volatility, Black-Scholes benchmark …
Persistent link: https://www.econbiz.de/10002917585
to be robust using both the realized volatility model and the GARCH model, confirm that the value premium cannot be …
Persistent link: https://www.econbiz.de/10002995301
"This paper finds strong evidence of time-variations in the joint distribution of returns on a stock market portfolio and portfolios tracking size--and value effects. Mean returns, volatilities and correlations between these equity portfolios are found to be driven by underlying regimes that...
Persistent link: https://www.econbiz.de/10002917584
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"One key stylized fact in the empirical option pricing literature is the existence of an implied volatility surface … (IVS). The usual approach consists of fitting a linear model linking the implied volatility to the time to maturity and the … Dumas et al. (1998). In the second-stage we model the dynamics of the cross-sectional first-stage implied volatility surface …
Persistent link: https://www.econbiz.de/10002977383
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"This paper studies strategic asset allocation and consumption choice in the presence of regime switching in asset returns. We find evidence that four separate regimes - characterized as crash, slow growth, bull and recovery states - are required to capture the joint distribution of stock and...
Persistent link: https://www.econbiz.de/10002917579