The exchange between Epstein (2010) and Klibanoff et al. (2012) identified a behavioral issue that sharply distinguishes between two classes of models of ambiguity sensitivity, exemplified by the Î±-MEU model and the smooth ambiguity model, respectively. The issue in question is whether a...

This paper tests for reference dependence, using data from Impressionist and Contemporary Art auctions. We distinguish reference dependence based on rule of thumb learning from reference dependence based on rational learning. Furthermore, we distinguish pure reference dependence from effects due...

People believe that, even in very large samples, proportions of binary signals might depart significantly from the population mean.  We model this "non-belief in the Law of Large Numbers" by assuming that a person believes that proportions in any given sample might be determined by a rate...

We investigate what it means for one act to be more ambiguous than another. The question is evidently analogous to asking what makes one prospect riskier than another, but beliefs are neither objective nor representable by a unique probability. Our starting point is an abstract class of...

Whether they are financial, economic, or psychological, discount rates affect most economic decisions: investment and savings, hirings and firings, defaults and refinancing, financial and economic reforms, learning and experimentation, and any other decision with long-term consequences, such as...

In many economic applications involving comparisons of multivariate distributions, supermodularity of an objective function is a natural property for capturing a preference for greater interdependence.  One multivariate distribution dominates another according to the supermodular stochastic...

The empirical literature on the economics of happiness has grown rapidly, and much has been learned about the determinants of subjective well-being.  Less attention has been paid to its normative implications.  Taking China as a case study, this paper first summarises empirical results on the...

Poor people often do not make investments, even when returns are high.  One possible explanation is that they have low aspirations and form mental models which ignore some options for investment.  This paper reports on findings of an innovative experiment to test this in rural Ethiopia. ...

We present experimental evidence which sheds new light on why women may be less competitive than men.  Specifically, we observe striking differences in how men and women respond to good and bad luck in a competitive environment.  Following a loss, women tend to reduce effort, and the effect is...

The underlying motivations for envy or related social preferences and their impact on agricultural innovations are examined by combining data from money burning experimental game and household survey from Ethiopia.  In the first stage of the money burning experimental game, income inequality is...