• Pol Antras


The Margins of Global Sourcing: Theory and Evidence from U.S. Firms. Pol Antras, March 13, 2014, Paper. "This paper studies the extensive and intensive margins of firms' global sourcing decisions. First, it presents three new facts on U.S. firms' import behavior that highlight the importance of the extensive margin in explaining cross-sectional variation in U.S. import volumes. These facts motivate the development of a quantifiable multi-country global sourcing model with heterogeneous firms, in which firms self-select into importing based on their productivity and country-specific variables (wages, trade costs..." Link verified August 21, 2014