The Global Diffusion of Ideas
---- Acknowledgments ----
We are grateful to Costas Arkolakis, Arnaud Costinot, Sam Kortum, Bob Lucas, Erzo Luttmer, Marc Melitz, Jesse Perla, Andres Rodriguez-Clare, Esteban Rossi-Hansberg, Chris Tonetti, Jeff Thurk, and Mike Waugh. The views expressed herein are those of the authors and not necessarily those of the Federal Reserve Bank of Chicago, the Federal Reserve System, or the National Bureau of Economic Research. All mistakes are our own.