3. (20 Points) Suppose that a small country is an importer of wheat, for which the current world price is $8. Suppose home demand is P=12-0.01Q and home supply is P=0.08Q. As a result of lobbing by the import- competing industry, a specific tariff of $2 per bushel is imposed. a. Calculate the pre-tariff quantity demanded and quantity supplied. How much is imported? b. Calculate the amounts of bushels supplied and demanded after the tariff. By how many bushels import of wheat declined as result of the tariff? c. Calculate the welfare impact (change in consumer surplus, producer surplus and government revenue). What is the deadweight loss (DWL) of this policy? d. Under what condition such policy might be welfare improving