's composite preferences for risk tolerance, ambiguity aversion and optimism. Investors rationalize (IR)rational expected utilities …

We report a portfolio-choice experiment that enables us to estimate parametric models of ambiguity aversion at the … specification includes two parameters: one for ambiguity attitudes and another for risk attitudes. We also estimate a three …

principles of Expected Utility Theory (EUT) and of Portfolio Selection Theory (PST). The experiment is performed with individuals … providing additional risk that is not compensated by additional expected value. We find that the results of our experiment are … extent observed team decisions under risk are actually consistent with the principles of rational choice, specifically the …

We design and conduct an economic experiment to investigate the learning process of agents under compound risk and … significantly overweight the new signal, while when learning under compound risk, subjects are essentially Bayesian …

This work reports an online experiment with a general-population sample examining the performance of budget …-choice tasks for elicitation of risk attitudes. First, I compare the investment task of Gneezy and Potters (1997) with the standard …

idiosyncratic value appraisals. Transparency in price risk enabled by the prism-like trading procedure is shown to facilitate … risk perceptions and its related issues …