3. Suppose Home is a small exporter of wheat. At the world price of $100 per ton, Home growers export 20 tons. Now suppose the Home government decides to support its domestic producer with an export subsidy of $40 per ton. Use the following figure to answer these questions.

a. What is the quantity exported under free trade and with the export subsidy?

b. Calculate the effect of the export subsidy on consumer surplus, producer surplus, and government revenue.

c. Calculate the overall net effect of the export subsidy on Home welfare.