Technology Transfer through Imports
---- Acknowledgements -----
Some parts of this material circulated earlier under the title "The Evolution of the World's Technology Frontier, 1973-2002". We are grateful to Bart Hobijn, Hossein Rostami, and seminar audiences at Industry Canada, the 2006 Canadian Economic Association's meeting, and the 2006 NBER Summer Institute for comments. Views expressed in this paper are those of the authors and do not necessarily reflect those of Industry Canada. The views expressed herein are those of the author(s) and do not necessarily reflect the views of the National Bureau of Economic Research.