Diversity and Technological Progress
NBER Working Paper No. 16984 ---- Acknowledgments ---- To appear in The Rate and Direction of Technological Progress by Joshua Lerner and Scott Stern (editors), National Bureau of Economic Research. I am grateful to Amir Reza Mohsenzadeh Kermani for excellent research assistance and for pointing out an error in a previous version, and to Samuel Kortum, Scott Stern and to participants at Stanford macroeconomics seminar and The Rate and Direction and Rate of Technological Progress conference. The views expressed herein are those of the author and do not necessarily reflect the views of the National Bureau of Economic Research. |

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