This paper examines systematically the attitude towards compound lottery by introducing three variants of symmetric uniform mean-preserving spread into stage-1 risk in a choice-based experimental setting. We do not observe consistent aversion to mean-preserving spread in the stage-1 risk. More...

This paper focuses on information acquisition and individual decision making in ambiguous situations and presents a novel experimental design which may help to tackle open questions from a fresh perspective. Instead of giving subjects the choice between risky and ambiguous Ellsberg urns, we let...

We consider an experimental setting where agents receive one stylized piece of information at a time about the value of a lottery. We find that Knightian uncertainty about the prior distribution of true lottery values does not hamper decision making by agents and markets. On a mean squared error...

Measuring risk aversion is sensitive to assumptions about the wealth in subjects' utility functions. Data from the same subjects in low- and high-stake lottery decisions allow estimating the wealth in a pre-specified one-parameter utility function simultaneously with risk aversion. This paper...

We study preferences over lotteries that pay a xed prize at an uncertain future date: what we call time lotteries. The standard model of risk and time preferences, Expected Discounted Utility, implies that individuals must be risk seeking towards such lotteries (RSTL). In contrast, we show...

Elicited preference rankings for two lotteries are typically inconsistent in choice and price. We test whether pre-play learning makes preference rankings consistent. Pre-play learning denotes ex-ante lottery learning, where subjects observe playing lotteries before making decisions. We find...

In this paper I introduce a concept of simple strategy and de fine three kinds of such strategies. For three classes of utility functions - CARA, DARA and CRRA I state and prove equivalent characterizations in terms of the corresponding simple strategy characteristics and the corresponding...

In this paper I analyze operational measure of riskiness defi ned by Foster and Hart (2007). I give simple intuition behind their main result. Then I extend the concept of riskiness measure in two respects - I de fine a generalized riskiness measure based on decreasing absolute risk aversion...