The need for justification is a widely observed social phenomenon. This paper develops a theoretical framework and reports laboratory evidence to show how pure justification pressure affects cooperative behavior in economic exchange environments. In a one-shot anonymous interaction, compared...

This paper continues my research program on violence and terrorism started 15 years ago. It presents in the first part through empirical exercises, the suitability of The Beveridge and Nelson decomposition of economic time series for pointing out the occurrence of terrorist attacks. It presents...

It is difficult to identify acts that are purely altruistic, and do not have some level of egoism or self-interest involved. By considering situations where team members seemingly have nothing to gain by the way they distribute points to others with regard to peer evaluation, and where their...

I conducted an artefactual field experiment to identify whether guilt reduces crime, and how the crime reduction effects of guilt change due to peer effects. Guilt aversion predicts the occurrence of peer effects caused by changes in guilt sensitivity and belief. I found supporting evidence of...

This article experimentally studies a two-stage elimination contest and compares its performance with a one-stage contest. Contrary to the theory, the two-stage contest generates higher revenue than the equivalent one-stage contest. There is significant over-dissipation in both stages of the...

Many resource allocation contests have the property that individuals undertake costly actions to appropriate a potentially divisible resource. We design an experiment to compare individuals’ decisions across three resource allocation contests which are isomorphic under risk-neutrality. The...

This paper experimentally compares the performance of four simultaneous lottery contests: a grand contest, two multiple prize settings (equal and unequal prizes), and a contest which consists of two subcontests. Consistent with the theory, the grand contest generates the highest effort levels...

We report experimental evidence on second-movers' behavior in the investment game (also known as the trust game) when there exists endowment heterogeneity. Using a within-subject analysis, we investigate whether second-movers have a tendency to be reciprocal (i.e., they return to first movers at...