研究所、轉學考(插大)-經濟學題庫下載題庫

1. Suppose the government has declared beer to be an illegal substance and has imposed equal penalties on any person caught buying a beer and on any person caught selling a beer. Using the above figure, in which CBL is the cost of breaking the law, by how much is beer consumption decreased by the penalties?

(A) Beer consumption is decreased by 200 quarts.
(B) Beer consumption is decreased by 400 quarts.
(C) Beer consumption is decreased by 300 quarts.
(D) Beer consumption is decreased by 500 quarts.