We experimentally test for the effect of an additional alternative on the measured risk preferences of farmers in rural Peru. In our experiment, subjects revealed their risk preferences with a series of choices between two gambles. We added a third gamble, which was always dominated by one of...

Recent policy initiatives offer cash payments to children (and often their families) to induce better health and educational choices. These policies implicitly assume that children are especially impatient (i.e., have high discount rates); however, little is known about the nature of children's...

The afro-descendent people of the Sanquianga region in the Colombian Pacific Coast live under particularly extreme poverty conditions. Although highly integrated to markets through very frequent interactions, their access to basic social services and stable income generating activities are...

This paper aims at analysing the effects of learning on the individual behaviour in an experiment that requires cooperation and coordination within teams. Using artificial agents, different social contests are created, as training environments. The results confirm previous findings (on the...

This paper aims to illustrate the results of an experimental analysis in which - along with organizational coordination - the participants' level of satisfaction was measured. As in the analysis of individual happiness, satisfaction is here measured by explicitly asking players. A series of...

Time-consuming and costly religious rituals pose a puzzle for economists committed to rational choice theories of human behavior. We propose that religious rituals promote in-group trust and cooperation that help to overcome collective-action problems. We test this hypothesis on communal...

Microfinance has been heralded as an effective way to address imperfections in credit markets. From a theoretical perspective, however, the success of microfinance contracts has puzzling elements. In particular, the group-based mechanisms often employed are vulnerable to free-riding and...

We conducted a natural field experiment to explore the effect of price changes on charitable contributions. To operationalize our tests, we examine whether an offer to match contributions to a non-profit organization changes the likelihood and amount that an individual donates. Direct mail...

In the US tradable SO2 permit scheme 97.2 per cent of the permits are grandfathered annually to electricity utilities. The remaining 2.8 per cent are withheld and offered for sale at the Environmental Protection Agency (EPA) auction. Also, the electricity utilities may tender permits for sale...