Bossaerts, Peter; Ghirardato, Paolo; Guarnaschelli, Serena - Collegio Carlo Alberto, Università degli Studi di Torino - 2006
attitudes toward risk are heterogeneous across the population, but that heterogeneity of attitudes toward ambiguity has … between risk aversion and ambiguity aversion that might explain the "value effect" in historical data. …This paper studies the impact of ambiguity and ambiguity aversion on equilibrium asset prices and portfolio holdings in …