University of Cambridge > > Cambridge Finance Workshop Series > Pi-CAPM: The Classical CAPM with Probability Weighting and Skewed Assets

Pi-CAPM: The Classical CAPM with Probability Weighting and Skewed Assets

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  • UserSebastian Ebert (Frankfurt School of Finance & Management) World_link
  • ClockThursday 11 November 2021, 13:00-14:00
  • HouseOnline.

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We study asset prices in a generalized mean-variance framework that allows for probability weighting (the idea that investors overweight rare, high impact events). The resulting model – the Pi-CAPM – allows for a unique and homogeneous pricing equilibrium with skewed and correlated assets and a tractable analysis thereof. We find that even symmetric probability weighting has asymmetric pricing implications. For example, the price impact of volatility is skewness-dependent, negative for left-skewed assets but potentially positive for right-skewed assets. We further find that probability weighting translates into an exaggerated dependence between the assets. Finally, we make an empirical contribution and show that the option-implied premiums on variance and skewness depend on the underlying asset’s skewness, in the very way that is predicted by the Pi-CAPM.

This talk is part of the Cambridge Finance Workshop Series series.

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