With regard to the severe situation of water resources in China,scarcity and externality of water resources are analyzed by use of theories and methods of economics.

• 针对我国日益严峻的水资源形势,用经济学理论和方法分析水资源的稀缺性和外部性,并根据科斯第三定理,提出明晰水权、建立水市场等缓解水资源稀缺性和外部性的对策。