@article {8794, title = {Intermediation and Economic Integration}, journal = {American Economic Review Papers and Proceedings}, volume = {100}, number = {2}, year = {2010}, note = {Published versions have been posted with the written permission of the journals where they appeared. Standard copyright rules apply. Please download and print for personal use only. Arnaud Costinot{\textquoteright}s website }, pages = {424-428}, url = {http://dx.doi.org/10.1257/aer.100.2.424}, author = {Pol Antr{\`a}s and Arnaud Costinot} }