Assume that the world price of sugar is $6 per pound. At that price, the demand for sugar in the small country of Economica is 20 and the supply is 10. Economica decides to impose a $2 tariff on sugar. After the tariff, domestic supply is 12 and demand is 18. Use this information to calculate the effect of the tariff on the following:

a. Consumer surplus

b. Tariff revenue

c. Production distortion