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We combine risk-neutral densities from equity index options with realized index returns to estimate the market's risk aversion. Starting from a power utility framework with constant risk aversion, we extend it by more flexible stochastic discount factors. We allow for time-varying risk aversion...
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We study the pricing and hedging of derivative securities with uncertainty about the volatility of the underlying asset … "distance" to a reference local volatility model. In the limit for small uncertainty aversion, this leads to explicit formulas …
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fanning effect generates pronounced volatility smirks …
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We present a new option-pricing model, which explicitly captures the difference in the persistence of volatility under … Stochastic Volatility models have the best forecasting performance …
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