Gravity, Productivity and the Pattern of Production and Trade
NBER Working Paper No. 14642
---- Acknowledgements ----
I am grateful to Christian Broda for helpful comments on the first version of this paper at the NBER ITI Summer Institute, 2007. I thank participants in seminars at Drexel University, Brandeis University and Oxford University for comments on earlier versions, and Susanto Basu for helpful discussions of productivity. The views expressed herein are those of the author(s) and do not necessarily reflect the views of the National Bureau of Economic Research.