Does tariff liberalization increase wage inequality ? - Some empirical evidence

The objective of the paper is to answer an often asked question: If tariff rates are reduced, what will happen to wage inequality? The authors consider two types of wage inequality: between occupations (skills premium) and between industries. They use two large databases of wage inequality that have recently become available and a large data set of average tariff rates covering the period between 1980 and 2000. The authors find that tariff reduction is associated with higher inter-occupational and inter-industry inequality in poorer countries (those below the world median income) and the reverse in richer countries. However, the results for inter-occupational inequality must be treated with caution.