A small country can import a good at a world price of 10 per unit. The domestic supply curve of the good is D = 400 - 5P, S = 20 + 10 P.
Assume the demand and supply are exactly as described but there is no marginal social benefit to production. However, for political reasons the government counts a dollar's worth of gain to producers as being worth $3 of either consumer gain or government revenue. Determine the effects on the government's objective of a tariff of 5 per unit.