Cooperation in the Commons with Unobservable Actions
Nori Tarui (),
Charles Mason (),
Stephen Polasky () and
Greg Ellis ()
Additional contact information Charles Mason: Department of Economics and Finance, University of Wyoming
Stephen Polasky: Department of Applied Economics, University of Minnesota
Greg Ellis: Department of Economics, University of Washington
Abstract:
We model a dynamic common property resource game with unobservable actions and non-linear stock dependent costs. We propose a strategy profile that generates a worst perfect equilibrium in the punishment phase, thereby supporting cooperation under the widest set of conditions. We show under what set of parameter values for the discount rate, resource growth rate, harvest price, and the number of resource users, this strategy supports cooperation in the commons as a subgame perfect equilibrium. The strategy profile that we propose, which involves harsh punishment after a defection followed by forgiveness, is consistent with human behavior observed in experiments and common property resource case studies.