This paper examines experimentally two common conjectures in the popular literature on financial markets: that they are swayed by emotion and that they behave like a 'crowd'. We find consistent evidence that deviations of prices from fundamental value depend on the emotion of excitement and on...

We devise a new experimental game by nesting a voluntary contributions mechanism in a broader spectrum of incentive schemes. With it, we study tensions between egalitarianism, equity concerns, self-interest, and the need for incentives. In a 2x2 design, subjects either vote on or exogenously...

Previous studies suggest that two otherwise robust 'anomalies' – preference reversals and disparities between buying and selling valuations – are eroded when respondents participate in repeated markets. We report an experiment which investigates whether this is true when factors...

We investigate the effects of the availability of resources that can be expended in conflict on conflict intensity. We run a between-subjects Tullock contest in which we vary the contest budget from Low to Medium to High, while keeping the Nash equilibrium bid the same. We find an 'inverted...

Teams often suffer from a free rider problem with respect to individual contributions. That putting teams into competition with each other can mitigate this problem is an important recent insight. However, we know little about how inequality in endowment between teams might influence this...

Social information 'nudges' concerning how others perform typically boost individual performances in experiments with one group reference point. However, in many natural settings, sometimes due to policy, there are several such group reference points. We address the complications that such...

This paper investigates the relative empirical performance of 3 stories of error' in decision-making experiments - finding that the constant-error-probability story does not fit particularly well, but that the white-noise and stochastic preference stories perform considerably better. The paper...

Plott and Zeiler (2005) report that the willingness-to-pay/willingness-to-accept disparity is absent for mugs in a particular experimental setting, designed to neutralize misconceptions about the procedures used to elicit valuations. This result has received sustained attention in the...

In a repeated public goods setting, we explore whether individuals, acting unilaterally, will provide an effective sanctioning institution. Subjects first choose unilaterally whether they will participate in a sanctioning stage that follows a contribution stage. Only those who gave themselves...

We present an experiment investigating the effects of having an individual identified as a singleton group. The presence of a singleton group reduces trustworthiness. The majority group members discriminate against the singled out group member when they are not responsible of the distinct status...