The difference between the value of a country’s exports and the value of its imports

Goods and services produced domestically and sold in other countries

The trading of one national currency for another

The policy of eliminating barriers to international trade

The system of economic interaction among the world's countries

Goods and services produced in other countries and sold domestically

A tax on imported goods designed to protect domestic producers from foreign competition

The policy of erecting trade barriers to shield domestic markets from foreign competition

Which of the following is not a contributor to the dramatic increase of global trade?

When a country can produce a good or service at a lower opportunity cost than its competitors can, it has