Problem
Calculate the rate of effective protection when t (the nominal tariff on the final commodity) is 40 percent, ai (the ratio of the cost of the imported input to the price of the final commodity in the absence of tariffs) is 0.5, and ti (the nominal tariff on the imported input) is 40 percent.
The response should include a reference list. Double-space, using Times New Roman 12 pnt font, one-inch margins, and APA style of writing and citations.