Rank the welfare of the entire country with the following protection

policies under perfect competition and explain your reasoning.

(a) Tariff t1 per unit of imports to a large country, and the equilibrium imported

quantity is M1 > 0. Assume that the tariff t1 is higher than the optimal tariff.

(b) Tariff t2 per unit of imports to a large country, and the equilibrium imported

quantity is M2 > M1 and M2 > 0.

(c) Tariff t3 per unit of imports to a large country, and the equilibrium imported

quantity is 0.