NO.PZ2023010401000144
问题如下：
The diagram to the right shows the domestic demand and supply curves for a country which imports a commodity, where PW is its world price and PT is its domestic price after the imposition of a tariff. The reduction in the net national welfare of this country as a result of the tariff is best described by the area(s):
选项：
A.E.
B.F+H.
C.G.
解释：
The loss in consumer surplus because of higher prices is represented by area E+F+G+H. This exceeds the gains from producer surplus (E) and government revenues on imports (G). Hence the net welfare effect to the country is a deadweight loss of [E+F+G+H] – [E] – [G] = F+H.
中文解析：
价格上涨导致的消费者剩余损失用面积E+F+G+H表示。这超过了生产者剩余(E)和政府进口收入(G)的收益。因此，对国家的净福利效应是无谓损失[E+F+G+H] - [E] - [G] = F+H。
如题………………mmmmmm
