The two primary reasons to adopt measures to restrict trade are that
a. they help keep real wages high in the importing country, and they also permit small
businesses to compete in international markets.
b. they may help the importing country improve its educational system, and they keep
high-technology products from being stolen by foreign competitors.
c. they may help the importing country get better prices for its goods, and they protect
certain industries from foreign competition.
d. they may help advance the political goals of the nation, and they encourage
productivity in domestic industries.
If a nation has an absolute advantage in the production of some commodity, it
a. can gain only if it has a comparative advantage in the commodity.
b. may still gain from trade in the commodity.
c. cannot gain from trade in the commodity.
d. cannot gain unless it has an absolute advantage in every other commodity.