When writing a paper, you should be a little skillful and deliberately set some uncommon or difficult keywords. Most teachers will ask such questions on their own initiative, and what you need to do is to prepare in advance and give a perfect answer. I feel that your paper has not been finished, so you need to give your own opinion on this matter. You can't just analyze the problem, you need to highlight your own views.

Nowadays, all papers are closely related to reality, and any trade barrier is an excuse for trade protection. Mainly depends on whether all exporting countries are treated fairly.