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This thesis develops empirical methodologies to investigate the effect of globalization on welfare and inequality both between- and within-countries. The first essay proposes a Roy-like model where workers are heterogeneous ill terms of their comparative and absolute advantage. We show that the schedules of comparative and absolute advantage (i) determine changes in the average and the variance of the log-wage distribution, and (ii) are nonparamnetrically identified from the cross-regional variation in the sectoral responses of employment and wages to observable sector-level demand shifters. Applying these results, we find that the rise in world commodity prices accounts for 5-10% of the fall in Brazilian wage inequality between 1991 and 2010. The second essay develops a methodology to construct nonparametric counterfactual predictions, free of functional-form restrictions on preferences and technology, in neoclassical models of international trade. First, we establish the equivalence between such models and reduced exchange models in which countries directly exchange factor services. This equivalence implies that, for an arbitrary change in trade costs, counterfactual changes in factor prices, and welfare only depend on the shape of a reduced factor demand system. Second, we provide sufficient conditions for the nionparainetric identification of this system. Together, these results offer a strict generalization of the parametric approach used in so-called gravity models. Finally, we use China's recent integration into the world economy to illustrate tile feasibility of our approach. The third essay investigates the connection between the recent rise in services trade and changes in labor market outcomes in different countries. We develop a theoretical framework where trade in services arises from the spatial unbundling of workers' task output. Transmission costs endogenously determine the magnitude of between-sector task trade both within a country ("outsourcing") and between countries ("offshoring"). We show that, while differentials in sectoral task prices decrease in response to outsourcing, they increase in response to offshoring. The heterogeneity in the composition of workers' task endowments controls responses in between- and within-sector wage inequality across countries.
Thèse. HEC. 2015
Focused on the intricate relationship between international trade and labor markets, the essays gathered here are both theoretical and empirical, and the countries considered include the UK, Mexico and Chile. They examine the impact of globalization and the intricate relationship between international trade and labor markets. The distinguished international contributors demonstrate the importance of this emerging research agenda, analyzing the importance of trade reforms on employment and the impact on skilled and unskilled labor from technological change and global competition.
Internationalization of the world economy has made trade a key factor in the growth potential of nearly every economy. Hence, economists have become increasingly interested in the determinants of international trade and competitiveness. Empirical Models i