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"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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"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 the higher volatility of the estimates of foreign state variables, our model produces excessive turnover in foreign …
Persistent link: https://www.econbiz.de/10002917587
"This paper proposes a new tractable approach to solving asset allocation problems in situations with a large number of risky assets which pose problems for standard numerical approaches. Investor preferences are assumed to be defined over moments of the wealth distribution such as its skewness...
Persistent link: https://www.econbiz.de/10002977388
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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
"The paper documents a new empirical result that a high level of aggregate U.S. idiosyncratic stock return volatility … currencies. For example, idiosyncratic volatility accounts for over 20 percent variations of the subsequent change in the … between a country's aggregate idiosyncratic volatility and the future U.S. dollar price of its currency--in France, Germany …
Persistent link: https://www.econbiz.de/10002995302
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