If free trade will benefit all nations in the long run, why do nations so often establish barriers, like tariffs, to make free trade impossible?

answer; (d) i believe that the correct answer is ; /// a new invention lowers the cost of production;

answer: yo mama

explanation: yo mama

there is no possible way mgk stands a chance with the greatest white rapper of all time. eminem killshots had more bars than rap devil and the reason mgk is doing all this is cause he not getting attention anymore til the release of rap devil and the disses he is putting on eminem. now rap devil was more fire than killshot so mgk might won the battle with rap devil but eminem won the war with killshot.

answer target market;