The world price of wine is below the price that would prevail in the United States in the absence of trade.
a) Assuming that American imports of wine are a small part of total world wine production, draw a graph for the U.S. market for wine under free trade.
b) Now suppose that a tariff is place on the importation of wine into the United States to protect domestic wine producers. What does this do to the price?
c) Draw a new diagram illustrating the price change as well as the changes to the quantity of imports.