In this article we test the main hypotheses of the behavioural theory of entrepreneurship, namely that risk preferences are reference-dependent, that entrepreneurs are not ambiguity-averse and that aspirations act as a reference point in the sense postulated by Prospect Theory. We use an...

The gift exchange hypothesis postulates that workers reciprocate above market-clearing wages with above-minimum effort. This hypothesis has received mixed support in dyadic employer-worker relationships. We present a field-experimental test to assess this hypothesis in the context of a triadic...

Law enforcement against illegal drug markets like coca leaf production have created big debate about its consequences and effectiveness. Since this enfocerment does not only affect the illegal market but also the legal ones it is then necessary to study its effects and effectiveness within a...

Alongside negative feedback loops between violence and development, several studies find a positive and significant effect of exposure to warfare onto prosocial behavior. This increase in prosociality tends to favor the group the individual identifies with relative to the out-group. The current...