Recent experimental studies suggest that risk aversion is negatively related to cognitive ability. In this paper we … population for our experiment. By presenting subjects with choice tasks that vary the bias induced by random choices, we are able … to generate both negative and positive correlations between risk aversion and cognitive ability. Structural estimation …

inefficiencies, such as under- and overtreatment or market break-down. We study in a large experiment with 936 participants the … has little influence, as predicted. Seller competition drives down prices and yields maximal trade, but does not lead to …

, verifiability fails to yield efficiency in experiments with endogenous prices. We identify heterogeneous distributional preferences … as the main cause and design a parsimonious experiment with exogenous prices that allows classifying experts as either …-standard distributional preferences, among which efficiency-loving and inequality aversion are most frequent. We discuss implications for …

We study risk taking on behalf of others, both with and without potential losses. A large-scale incentivized experiment … others are more risky. Using structural estimation, we show that this increase in risk stems from a decrease in loss aversion …