The Plan Nacional de Vigilancia Comunitaria por Cuadrantes (PNVCC) is a new police patrolling program introduced in the eight major cities of Colombia in 2010 by the National Police. The strategy divides the largest cities into small geographical areas (cuadrantes), assigns six policemen to...

Empirical studies of tropical forest hunting have shown the existence of marked spatialgradients of hunting effort, game harvest, and animal abundance, as hunters mostlyhunt near villages, roads, and rivers. The mechanisms underlying these patterns have,however, hitherto been poorly known. This...

This article contributes to the literature on the impact of transitional justice measures using microfoundational evidence from experiments. We argue that there is a distributional dilemma at the heart of transitional justice programs, given that the State must allocate goods and services both...

Watersheds and irrigation systems have the characteristic of connecting people vertically by water flows. The location of users along these systems defines their role in the provision and appropriation of water which adds complexity to the potential for cooperation. Verticality thus imposes a...

Any system of transfer payments must be administered by officials with some degree of discretionary power over the manner in which funds are allocated. Attitudes of such officials regarding the worthiness of various recipients therefore have implications for resource allocation. Using a sample...

Behavior in the local commons is usually embedded in a context of regulations and social norms that the group of users face. Such norms and rules affect how individuals value material and non-material incentives and therefore determine their decision to cooperate or over extract the resources...

The dilemma of collective action around water use and management involves solving both the problems of provision and appropriation. Cooperation in the provision can be affected by the rival nature of the appropriation and the asymmetries in the access. We report two field experiments conducted...

We model the dynamic effects of external enforcement on the exploitation of a common pool resource. Fitting our model to the results of experimental data we find that institutions influence social preferences. We solve two puzzles in the data: the increase and later erosion of cooperation when...