An economic experiment involving separate sessions in 24 small, tightly knit communities reveals that trust is higher where greater trustworthiness is expected and lower variance in levels of trustworthiness is perceived. A model in which potential trusters behaviour is likened to a risky...

Previous analyses of the formation and composition of community-based organizations (CBOs) have used cross section data. So, causal inference has been compromised. We obviate this problem by using data from a quasi-experiment in which villages were formed by government officials selecting and...

Assorting on gender is casually observed in developing countries and is now systematically built into many group-oriented development interventions. In this paper we explore the mechanisms underlying the emergent gender assorting, using an experiment in which African villagers could form groups...

Assortative matching occurs in many social contexts. We experimentally investigate gender assorting in sub-Saharan villages. In the experiment, co-villagers could form groups to share winnings in a gamble choice game. The extent to which grouping arrangements were or could be enforced and,...