Over the last five decades, the growing demand for ecosystem services, such as food, water and fuel has led to the most rapid and extensive changes in ecosystems in human history. Examples for these transformations include the agricultural intensification at the habitat and landscapes scale. In...

We study behavior in a search experiment where sellers receive randomized bids from a computer. At any time, sellers can accept the highest standing bid or ask for another bid at positive costs. We find that sellers stop searching earlier than theoretically optimal. Inducing a mild form of time...

This paper investigates the hypothesis that women are underrepresented in leadership roles due to a lower ability to influence others. By comparing societies that differ in the inheritance rights of men and women, we trace the origins of such difference. The results of a public good game with...

Affirmative action is a subject of intense debate. Supporters point to the increased representation of women and minority groups while critics contend that affirmative action can lead to inefficiencies. In this paper we present results from two field experiments that were designed to test how...

In order to deal with crises, organizations often bring expert leaders from outside. However, relying in an outside leader can result in decreased performance of the organization. In this paper, we use an experiment to investigate the role of identity and skills of the outside leader on the...

From 1997 to 2005, an astonishing 5,200 million USD was invested to reduce cocaine production in Colombia, the world's main cocaine producer. However, little is known about the effectiveness of policies targeting coca cultivation. This paper uses a surveybased experiment to evaluate the effects...

To study the persistence of cultural norms that mandate respect towards the elder, we conducted an artefactual field experiment in two cities in Ghana. Using a public good game with third-party punishment, we find that punisher's age is an important determinant of cooperation. Our results...

This paper uses a framed field experiment to test the effect of persuasive communication as a strategy in the fight against drugs in Colombia. Our design varies the salience and the degree of informativeness of the messages that participants receive, while highlighting particular negative...

According to advocates, eco-certification can improve developing country farmers' environmental and economic performance. However, these notional benefits can be undercut by self-selection: the tendency of relatively wealthy farmers already meeting eco-certification standards to...