This paper posits a formal political economy model where the principle of reciprocity in multilateral trade talks results in the gradual elimination of tariffs. Reciprocity trade talks turn each nation’s exporters into anti-protectionists at home; they lower foreign tariffs by convincing their...

Using a detailed data set at the tariff line level, we find an emulator effect of multilateralism on subsequent regional trade agreements involving the US. We exploit the variation in the frequency with which the US has granted immediate duty free access (IDA) to its Free Trade Area partners...