Why would a nation want to apply tariffs? Have you considered the reasons?
The main reason is that, while free trade is accepted by virtually every economist respected within the profession since in every country it always is and must be the interest of the great body of the people to buy whatever they want of those who sell it cheapest, free trade remains a political loser because of confusions, such as the confusion of goods with persons, a belief in the free lunch and a refusal to heed the lesson of the broken window:
An American manufacturer of woolen sweaters goes to Congress or to the State Department and tells the committee or officials concerned that it would be a national disaster for them to remove or reduce the tariff on British sweaters. He now sells his sweaters for $30 each, but English manufacturers could sell their sweaters of the same quality for $25. A duty of $5, therefore, is needed to keep him in business. He is not thinking of himself, of course, but of the thousand men and women he employs, and of the people to whom their spending in turn gives employment. Throw them out of work, and you create unemployment and a fall in purchasing power, which would spread in ever-widening circles. And if he can prove that he really would be forced out of business if the tariff were removed or reduced, his argument against that action is regarded by Congress as conclusive.
But the fallacy comes from looking merely at this manufacturer and his employees, or merely at the American sweater industry. It comes from noticing only the results that are immediately seen, and neglecting the results that are not seen because they are prevented from coming into existence.
The lobbyists for tariff protection are continually putting forward arguments that are not factually correct. But let us assume that the facts in this case are precisely as the sweater manufacturer has stated them. Let us assume that a tariff of $5 a sweater is necessary for him to stay in business and provide employment at sweater-making for his workers.
We have deliberately chosen the most unfavorable example of any for the removal of a tariff. We have not taken an argument for the imposition of a new tariff in order to bring a new industry into existence, but an argument for the retention of a tariff that has already brought an industry into existence, and cannot be repealed without hurting somebody.
The tariff is repealed; the manufacturer goes out of business; a thousand workers are laid off; the particular tradesmen whom they patronized are hurt. This is the immediate result that is seen. But there are also results which, while much more difficult to trace, are no less immediate and no less real. For now sweaters that formerly cost retail $30 apiece can be bought for $25. Consumers can now buy the same quality of sweater for less money, or a much better one for the same money. If they buy the same quality of sweater, they not only get the sweater, but they have $5 left over, which they would not have had under the previous conditions, to buy something else. With the $25 that they pay for the imported sweater they help employment—as the American manufacturer no doubt predicted — in the sweater industry in England. With the $5 left over they help employment in any number of other industries in the United States.
But the results do not end there. By buying English sweaters they furnish the English with dollars to buy American goods here. This, in fact (if I may here disregard such complications as fluctuating exchange rates, loans, credits, etc.) is the only way in which the British can eventually make use of these dollars. Because we have permitted the British to sell more to us, they are now able to buy more from tis. They are, in fact, eventually forced to buy more from us if their dollar balances are not to remain perpetually unused. So as a result of letting in more British goods, we must export more American goods. And though fewer people are now employed in the American sweater industry, more people are employed—and much more efficiently employed—in, say, the American washing-machine or aircraft-building business. American employment on net balance has not gone down, but American and British production on net balance has gone up. Labor in each country is more fully employed in doing just those things that it does best, instead of being forced to do things that it does inefficiently or badly. Consumers in both countries are better off. They are able to buy what they want where they can get it cheapest. American consumers are better provided with sweaters, and British consumers are better provided with washing machines and aircraft.
Hong Kong existed as an independent national economy for decades before it was "returned" to China. WHY was it prosperous?
What makes you think that Americans want economists to run their country? Because that is what you are proposing. Econoomists nowadays seem unaware of the function of the nation-state, and that people are governed by laws, not economic theory pushed by transnational corporations whose loyalities do not reside with the American people. Yet the freetards among us think you can supplant a self governing nation with theoretical economics which eliminate citizenship of nations and replace it with consumers of regional residency.