Professor wang can I ask a few questions?
Certainly.
What is the tariff?
It's a tax levy by the goveroverment on goods imported into that country.
Why does the government levy the tariff?
Tariff provides the government with extra tax revenue.
Anything else.
Tariff raises the price at which the goods are sold in the importing country and therefore makes them less competitive with locally produced goods.
Oh, I know. Thank you. Professor wang.
Do not mention it.