The nonequivalence of tariffs,import quotas,and voluntary export restraints

This paper compares the equilibrium levels of prices, imports, production and consumption under a tariff, an import quota, and a voluntary export restraint when each trade restriction is set so as to lead to the same quantity of imports. Competitive, domestic production monopoly, import monopoly, and export monopoly cases are examined. Voluntary export restraints are shown to have different effects than import quotas or tariffs, especially when some potential exporters remain outside the agreements.