、腐败盛行的“次优世界（second-best world）”中，反垄断法的实施甚至可能使得一国陷入欠发达的 恶性循环 （ vicious circles ）。

那second-best world 就是非理想情况下，就是指“实际社会生活”？

额，这个，我是大一的，还不是很精通，我再给你问一下，问着了就回你

3Q~等我知道了也回你

In welfare economics, the theory of the second best concerns what happens when one or more optimality conditions cannot be satisfied. Canadian economist Richard Lipsey and Australian economist Kelvin Lancaster showed in a 1956 paper that if one optimality condition in an economic model cannot be satisfied, it is possible that the next-best solution involves changing other variables away from the ones that are usually assumed to be optimal.

希望上面的信息能帮到你。