Perhaps as important is the relation between the existence of solutions to a competitive equilibrium and the problems of normative or welfare economics.
I'm not a person who likes to be in the background.
There are moments when the body is as numinous as words, days when the bones are words.
60年代的故事,就像飞碟登陆一样。每个人都听说过,但很少有人亲眼见过。
当你对别人说“是”时,确保你没有对自己说“不”。