美国经济学家戴维·弗里德曼曾经提出这么个问题:假设你是个英雄,手中的剑已经折断,而身后有40个敌人在追你,但你有一把弓箭,作为英雄,你百发百中,可惜你只有10支箭。敌人正在以最快的速度向前冲,并且离你很近了,这时,请你运用经济学的方法逃生。这个问题对于中国人来说并不难,答案就是枪打出头鸟。你先把跑在最前面的第一个人撂 David Friedman, an American economist, once asked the question: Suppose you are a hero, the sword in your hand has broken, and 40 enemies are chasing you behind you. But you have a bow and arrow. As a hero, you are in every corner, Unfortunately, you only have 10 arrows. The enemy is rushing forward as fast as possible, and close to you. At this moment, please use the economic method to escape. This problem is not difficult for the Chinese people, the answer is gunfire. You first run in front of the first person 撂