So why does this economic phenomenon happen? And is it a good or a bad thing?

那么为什么会出现这种经济现象呢？ 这是好事还是坏事？

Yeah, buffets are like this special place where all kinds of interesting economic phenomena that you might have only read about in a textbook - they come alive.

是的，自助餐就像一个特殊的地方，你可能只在教科书上读过的各种有趣的经济现象在这里变得生动起来。

Instead, as with a surprising number of important economic phenomena, analysts have to tease it out by measuring more concrete parts of the financial system, and seeing what is left over.

相反，与数量惊人的重要经济现象一样，分析师必须通过衡量金融体系中更具体的部分并查看剩下的部分来梳理出问题。