Given that countervailing duties and import tariffs are set in different ways and for different purposes, I re-examine the relationship between countervailing duties, foreign export subsidies and import tariffs under imperfect competition. I find that (i) the optimal countervailing duty depends...

Uses a conjectural variation approach to derive a general result concerning the equivalence of tariffs and quotas. Shows that, as long as the quota is binding, the equivalence of tariffs and quotas depends exclusively on the domestic firm's conjectural variations. Specifically, the domestic...