为了防止这种情况的发生,迫切需要一些规则来限制抽水。但问题是如果没有协议担保其他城市会共同进退,没有一个城市会主动减少抽水。最近逝世的欧玲(Elinor Ostrom)教授在共有资源治理方面的研究成果为她赢得了2009年度诺贝尔经济学奖。她指出不同类型的操作规则可以用几乎无穷尽的方式相结合,没有任何完美模型能够准确地判断哪种特定的操作规则 In order to prevent this from happening, there are urgently needed rules to restrict pumping. But the problem is that no city will take the initiative to reduce its pumping if there is no agreement to guarantee that other cities will move forward together. The recent death of Professor Elinor Ostrom’s research on shared resource governance won her the 2009 Nobel Prize for Economics. She pointed out that different types of rules of operation can be combined in an almost endless way, and no perfect model can accurately determine which specific rules of operation