不同博弈情况下农户间水权交易价格研究.

In view of the increasing prominent water resources shortage in China, in order to further improve the efficiency of water resources utilization, this paper was based on the maximum interest of farmer households and the individual interests of all farmers from the perspective of cooperative game theory and non-cooperative game theory. Taking the fixed total water consumption and food security of farmer households participating in water rights transaction as constraints, the marginal benefit method and Lagrange multiplier method were used to find the optimal solution and a pricing model of water rights transaction price based on game theory and water production function was built. It applied the model to the farmer households’ water rights trading in Yangtang canal irrigated area of Hetao irrigation region in Inner Mongolia and calculated the changes of transaction water volume, water price and interest of each scheme from different game perspectives. In the perspective of cooperative game theory, all farmer households participated in water rights transaction, the value-added of collective interests was 162 400 Yuan reaching to the maximum, the total transaction water volume was 36 460 m3, and the transaction price was 2.205 Yuan/m³; In the perspective of non-cooperative game theory, it would form a Nash equilibrium in which both farmer N1 and farmer N3 trade water rights with farmer N2, at the moment, the value-added of collective interests was 140 700 Yuan, the total transaction water volume was 24 632 m³ and the transaction price was 2.208 Yuan/m³, comparing with non-cooperative game, cooperative game could ensure fairness and further optimize the allocation of water resources. [ABSTRACT FROM AUTHOR]