I'm completely stuck on this question..
Trade barriers only work when..?
-infant industries receive the protection.
-the United States does not have a trade deficit.
-American money is kept in the United States.
-other countries do not use trade barriers.
I want to say the answer is the 2nd one...the 1st and 3rd don't seem to fit with this, and I'm not sure about the last answer which is why I don't know the answer..
can anyone please help me?