Gemmill, Gordon T; Hwang, Soosung; Salmon, Mark - C.E.P.R. Discussion Papers - 2005
We examine a simple measure of portfolio performance based on prospect theory, which captures not only risk and return … but also reflects differential aversion to upside and downside risk. The measure we propose is a ratio of gains to losses …, with the gains and losses weighted (if desired) to reflect risk-aversion for gains and risk-seeking for losses. It can also …