Do tariffs inhibit trade flows by limiting the entry of exporting firms ('extensive margin') or by restricting the average volume exported by each firm ('intensive margin')? Using a gravity equation approach, we analyze how the decrease in tariffs promoted during the 1990s by the Uruguay Round...

Recent economic geography and trade empirical studies based on monopolistic competition suggest high levels of trade price elasticities (between 3 and 11). However, price elasticity estimations in trade equations using unit values as price proxies usually lead to lower values of around unity. We...

Traditional trade models ignoring the dimension of product quality generally lead to excessively low trade price elasticities. This paper estimates import market share equations including a quality image proxy derived from survey data. The estimation results, based on panel data for the four...