We develop a tractable method to estimate multiple prior models of decision-making under ambiguity. In a representative sample of the U.S. population, we measure ambiguity attitudes in the gain and loss domains. We find that ambiguity aversion is common for uncertain events of moderate to high...

Experimental studies show that people's risk preferences depend non-linearly on probabilities, but relatively little is known about how probability weighting influences investment decisions. In this paper we analyze the portfolio choice problem of investors who maximize rank-dependent utility in...

Beliefs are a central determinant of behavior. Recent models assume that beliefs about or the anticipation of future consumption have direct utility consequences. This gives rise to informational preferences, i.e., preferences over the timing and structure of information. Using a novel and...

In this paper, we develop some theories related to relationships between central moments, stochastic dominance (SD) and expected utility. The first part of our discussion focus on the relationship between central moments, different order integrals and stochastic dominance as well as relationship...

This paper shows how expected utility shortcut can result in some adversary conclusion: excessive cost. It then demonstrates graphically how Grossman and Hart (GH) have twisted the agent's model to form the principal model. A complete principal-agent model is then introduced, and is proved to be...

The lessons I (Gana 2014) have learned from the vivid contrast between the mean and median fair values (Hayden and Platt 2009) of the game (Bernoulli 1738) underlying the St. Petersburg Paradox (SPP) are applied, by implicating the median, to modify two unidimensional poverty indices: the Sen...

Parametric and non-parametric risk aversion is often elicited through binary lotteries. Basing ourselves on recent evidence of the higher than theorized importance of skewness in decision making, we highlight in this paper that skewness might bias the result of risk aversion elicitation in two...

This paper provides a resolution of St. Petersburg paradox using the fact that budget/wealth of people is finite before the game, and that with infinite budget, the paradox obviously is meaningless. The paper also provides an alternate resolution

Bayes' statistical rule remains the status quo for modeling belief updating in both normative and descriptive models of behavior under uncertainty. Recent research has questioned the use of Bayes' rule in descriptive models of behavior, presenting evidence that people overweight 'good news'...