"In particular, the academic debate over the best prediction about the behavior of people that use a common-pool resource (CPR), and the recommended policy approaches to the CPR dilemma have undergone a very interesting evolution throughout the last 3 decades of the pastcentury, since the...

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...