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martingale, as required by the theory, but a strict local martingale with consequences on the validity of the risk … filtration set so that an absolutely continuous strict local martingale, once projected on it, becomes continuous with jumps …
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The Black-Scholes framework implies a constant volatility across term and strike, and a lognormal distribution for underlying asset prices. However, it is known that empirical data violates this assumption. In this report we describe, motivate and apply a model-independent,...
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This paper analyzes empirical market utility functions and pricing kernels derived from the DAX and DAX option data for three market regimes. A consistent parametric framework of stochastic volatility is used. All empirical market utility functions show a region of risk proclivity that is...
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