问题
单项选择题
An analyst does research about trade restriction. A primary reason for a country to adopt restrictions on international trade is that restrictions typically:
A. improve short-run economic efficiency.
B. benefit consumers at the expense of producers.
C. provide concentrated benefits to a small group of people.
答案
参考答案：C
解析： 限制国际贸易并不能促进短期的经济有效性，而是有利于生产厂商，并且会牺牲消费者的利益。但是，限制国际贸易为一小部分人提供了利益，如本地的生产厂商受到国外产品的竞争会减少，从而能够获得更多的利润。