Nurturing the Accumulation of Innovations: Lessons from the Internet

Shane Greenstein

NBER Working Paper No. 15905
Issued in April 2010

---- Acknowledgments ----

Elinor and Wendell Hobbs Professor, Kellogg School of Management, Northwestern University. I thank Guy Arie, Tim Bresnahan, David Clark, David Crocker, Rebecca Henderson, Franco Malerba, Richard Newell, Bonnie Nevel, John Quarterman, Craig Partridge, Richard Schmalensee, Alicia Shems, Scott Stern, and Stephen Wolff for extraordinarily useful conversations and comments. This essay is part of a larger project funded by the Kaufman Foundation, the Searle Center at Northwestern University, and the Dean's Office at the Kellogg School of Management at Northwestern. I am grateful for the funding. I am responsible for all remaining errors. 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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