This paper proposes that ethnicity coupled with ethnic nepotism may reduce interpersonal generalised trust. We use the 2001 wave of the World Values Survey data for eight African countries to test…

This study measured the discount rates of 262 farm households in the Ethiopian highlands, using a time preference experiment with real payoffs. In general, the median discount rate was very high and…

The effects of stake size on cooperation and punishment are investigated using a public goods experiment. The effects of stake size on cooperation and punishment are investigated using a public goods…

Objectives: To estimate household willingness to pay (WTP) for cholera vaccines in a rural area of Bangladesh, which had participated in a 1985 oral cholera vaccine trial. Methods: A contingent…

The empirical analysis in this paper shows that production risk plays a significant role in sustainable land-management technology adoption in the Ethiopian highlands. The adoption and intensity…

Analysis of the differences in firms’ responsiveness to PROPER (Indonesia’s successful public disclosure program for industrial pollution control) showed that foreign-owned firms and firms in densely…

This artefactual experiment in Ethiopia tested the hyperbolic discounting hypothesis by comparing time discounting over cash and consumption goods, using real payoffs. It found no difference in…

Just how important social context is for voluntary contributions is investigated in a natural field experiment, where subjects made either actual or hypothetical contributions to a national park in…

In a natural field experiment, the authors quantified the importance of anonymity, reciprocity, and conformity through the provision of social reference levels in order to explain voluntary…

The revitalization of Machakos, Kenya, from overpopulation and resource degradation—seemingly by its population growth—has added another round to the Boserupian vs. Malthusian debate, and may make…