Modeling the farming society: based on their climate perception and possibility of water trading during scarcity:

From Santa Fe Institute Events Wiki

Abstract: The emergence of cooperation in a virtual farming society is modeled here. This irrigating society is composed of an ensemble of N agents located near a river from where water is taken through diversion canals and distributed to the agent’s fields. Each agent makes two decisions every year regarding: (1) the type of crop mix to plant and (2) whether he joins, or not, a cooperative group that allocates water across farmers to maximize production and share revenues equally. Results of this work show that the degree to which farmers are willing to cooperate has a strong dependency on the mean river flows, thus on the climate of the region.