Nicholas Sly

International Productivity Differences, Trade and the Distributions of Factor Endowments

This paper presents a model of task assignment and worker matching to explore how the distributions of labor endowments within countries influence aggregate productivity and international trade patterns. Higher moments of the skill distribution have complex relationships with the organization of the labor force. First, labor endowments skewed toward high abilities exhibit positive assortment of workers across tasks, while countries with distributions of ability skewed towards low abilities exhibit underemployment. Second, greater dispersion improves aggregate productivity in countries that experience underemployment, but worsens productivity where there is assortative assignment. Furthermore, the shape and size of factor endowments are shown to jointly determine a global pattern of comparative advantage. Countries are more likely to export their abundant factors when labor markets organize heterogenous workers effectively. These predictions receive empirical support from Organization for Economic Co-operation and Development (OECD) countries using measures of diversity constructed from educational attainment.

International Trade and the Composition of Labor Market Turnover

The composition of labor market turnover is shown to influence patterns of international trade. Job and worker turnover have opposing marginal effects on industry export intensity, highlighting the importance of relative turnover shares on either side of the labor market, as opposed to total volumes of labor mobility, in shaping economic outcomes. Industries with relatively greater shares of worker turnover export more of total production, and those with higher job turnover export less. Furthermore, relatively high job turnover hinders industry adjustment following trade liberalization. These predictions receive support for U.S. manufacturing industries using turnover data in the Quarterly Workforce Indicators available from the U.S. Census Bureau.

The Labor Market Effects of Offshoring by U.S. Multinational Firms

We use firm-level data on U.S. multinationals to show how offshoring affects domestic employment within and across firms. We introduce a new instrument for offshoring: Bilateral Tax Treaties, which reduce the cost of offshore activities. We find substantial heterogeneity in effects. A 10 percent increase in affiliate employment drives a 1.3 percent increase in employment at the U.S. parent firm, with smaller effects at the industry and regional levels. In contrast, offshoring by vertical multinationals drives declining employment among non-multinationals in the same industry, and firms opening new affiliates exhibit smaller domestic employment growth than those expanding existing affiliates.

The Multinational Wage Premium and Wage Dynamics

Using detailed administrative data linking French firms and workers over the years 2002-2007, we document a distinct U-shaped pattern in worker-level wages surrounding the time their employer is acquired by a foreign firm, with a dip in earnings observed for several years before domestic firms switch to MNE status. This pre-acquisition decline in earnings can partly explain why prior evidence found no impact of foreign ownership on worker-level wages. Accounting for the pre-acquisition earnings dip and other confounding wage dynamics we find that MNEs increase remuneration to workers by 4.8% initially, and by 6%-8% after several years. Unique information about in-kind payments reveals that bonuses and other non-monetary remuneration also exhibit a U-shaped pattern surrounding foreign acquisition.