Import Competition and Quality Upgrading
---- Acknowledgements ----
This paper was previously circulated under the title "Competition and Quality Upgrading." We thank Nina Pavcnik, David Weinstein and participants at seminars at the Federal Reserve Bank of New York, Yale University, Geneva Graduate Institute and the European Research Workshop (ERWIT) in Madrid for many useful suggestions. We thank Spencer Amdur for excellent research assistance. All errors are our own. The views expressed in this paper are those of the authors and do not necessarily represent those of the Federal Reserve Bank of New York or the National Bureau of Economic Research.