We use a set of experiments to study the effects of forced military service for a rebel group on social capital. We examine the case of Northern Uganda, where recruits did not self-select nor were systematically screened by rebels. We find that individual cooperativeness robustly increases with...

This paper studies gender heterogeneity in preferences. We used experimental methods to elicit the subjective discount rate and attitude toward risk in Indian villages. Results show that women made more patient choices than men and that their discount rate is related to number of children. No...

Endogenous time discounting is introduced in a two-period human-capital-driven growth model: subjective discount rate depends upon the level of human capital. This assumption accords strongly with the micro-level evidence. In the model an individual optimizes consumption over two periods. Low...

Other-regarding preferences are important for establishing and maintaining cooperative outcomes. In this paper, we study how formation of other-regarding preferences during childhood is affected by parental background. Our subjects, aged 4-12 years, are classified into other-regarding types...

This paper draws a link between self-control problems and the contractual mechanisms of microcredit. We use a series of lab experiments in the field which were designed to elicit measures of time discounting on a sample of 573 individuals in rural Karnataka, India. Evidence from the experiments...

We study cooperation within and between groups in the laboratory, comparing treatments in which two groups have previously been (i) in conflict with one another, (ii) in conflict with a different group, or (iii) not previously exposed to conflict. We model conflict using an inter-group Tullock...

This paper analyzes data from a survey of ex-combatants in Liberia conducted in 2006 by Pugel (2006. 2007), with the goal of determining the effect that Liberia's Demobilization, Disarmament, Rehabilitation and Reintegration program had on participants' income and chances of finding employment....

In this paper we examine the effects that variations in the quality of the environment at birth have on children's other-regarding preferences, as measured through four binary-choice dictator games run with school-age children in rural Sierra Leone. We examine the effect of exogenous variations...

Dishonest activities with negative consequences for others and society are often undertaken by individuals as well as groups of people. In this paper, we use a field experiment among students aged 11-16 years to study whether there is a difference between individual and group cheating behavior....