Lien, Donald; Shaffer, David R. - In: Journal of Futures Markets 19 (1999) 1, pp. 101-113
The extended Gini coefficient, Γ, is a measure of dispersion with strong theoretical merit for use in futures hedging. Yitzhaki (1982, 1983) provides conditions under which a two‐parameter framework using the mean and Γ of portfolio returns yields an efficient set consistent with...