Aggregation of preferences for skewed asset returns

Fousseni Chabi-Yo, Dietmar P.J. Leisen, Eric Renault

Research output: Contribution to journalArticleResearchpeer-review

7 Citations (Scopus)

Abstract

This paper characterizes the equilibrium demand and risk premiums in the presence of skewness risk. We extend the classical mean-variance two-fund separation theorem to a three-fund separation theorem. The additional fund is the skewness portfolio, i.e. a portfolio that gives the optimal hedge of the squared market return; it contributes to the skewness risk premium through co-variation with the squared market return and supports a stochastic discount factor that is quadratic in the market return. When the skewness portfolio does not replicate the squared market return, a tracking error appears; this tracking error contributes to risk premiums through kurtosis and pentosis risk if and only if preferences for skewness are heterogeneous. In addition to the common powers of market returns, this tracking error shows up in stochastic discount factors as priced factors that are products of the tracking error and market returns.

Original languageEnglish
Pages (from-to)453-489
Number of pages37
JournalJournal of Economic Theory
Volume154
DOIs
Publication statusPublished - 1 Nov 2014
Externally publishedYes

Keywords

  • Aggregation
  • Market return
  • Polynomials of pricing factors
  • Portfolio
  • Skewness
  • Stochastic discount factor

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