Risky asset pricing based on safety first fund management

Yuanyao Ding and Bo Zhang

Quantitative Finance, 2009, vol. 9, issue 3, 353-361

Abstract: We study a portfolio selection model based on Kataoka's safety-first criterion (KSF model in short). We assume that the market is complete but without risk-free asset, and that the returns are jointly elliptically distributed. With these assumptions, we provide an explicit analytical optimal solution for the KSF model and obtain some geometrical properties of the efficient frontier in the plane of probability risk degree zα and target return rα. We further prove a two-fund separation and tangency portfolio theorem in the spirit of the traditional mean-variance analysis. We also establish a risky asset pricing model based on risky funds that is similar to Black's zero-beta capital asset pricing model (CAPM, for short). Moreover, we simplify our risky asset pricing model using a derivative risky fund as a reference for market evaluation.

Keywords: KSF criterion; Efficient frontier; Tangency portfolio; Zero-covariance portfolio frontier; Elliptical distribution (search for similar items in EconPapers)
Date: 2009
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DOI: 10.1080/14697680802392488

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