Collective action for watershed management: field experiments in Colombia and Kenya
The collective action problem 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 appropriation and the asymmetries in access. We report the results of two field experiments conducted in Colombia and Kenya. The irrigation game was used to explore the provision and appropriation decisions under asymmetric or sequential appropriation, complemented by a voluntary contribution mechanism experiment which looks at provision decisions under symmetric appropriation. The overall results were consistent with the patterns of previous studies: the zero contribution hypotheses is rejected whereas the most effective institution to increase cooperation was face-to-face communication, although we find that communication works much more effectively in Colombia than in Kenya. We also find that the asymmetric appropriation did reduce cooperation, though the magnitude of the social loss and the effectiveness of alternative institutional options varied across sites.
Volume (Year): 16 (2011)
Issue (Month): 03 (June)
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