IMPORTANT !!! — Windows Live

学那么多年都不记得,多丢人.


Surplus & Profit	sunk cost excluded in econ cost, thus included in surplus.

Monopsony and Producer theory	MC in the two theories are different. MC of the monopsony is the MC of buyer, not supplier!

ex-ante & ex-post (1)	In behavioral inter-temporal choice model, there are no expected returns but different discount factors at different points of time. There is no difference between ex-ante and ex-post, but the positions in time.

ex-ante & ex-post (2)	In I.O.'s costly search model,the expected utility of consumers is the same overtime. Only the realized utility would change (increase) overtime. When making decisions, use ex-ante utility function. Then, we used ex-post function in which model?