Suppose that with free trade, the cost to the United States of importing a calculator from Mexico is $12.00, and the cost of importing a calculator from China is $10.00. A calculator produced in the United States costs $16.00. Suppose further that before NAFTA, the United States maintained a tariff of 25% against all calculator imports. Then, under NAFTA, all tariffs between Mexico and the United States are removed, while the tariff against imports from China remains in effect. Assume that the tariff does not affect the world price of calculators