NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Digital Dark Matter and the Economic Contribution of Apache

Shane Greenstein, Frank Nagle

NBER Working Paper No. 19507
Issued in October 2013

---- Acknowledgements -----

We thank Justin Ng for research assistance. We are grateful for the many useful comments we received from audiences at the NBER, Kristina McElheran, Dan Sichel, Ashish Arora, and two anonymous referees. All errors are our responsibility. The views expressed herein are those of the authors and do not necessarily reflect the views of the National Bureau of Economic Research.

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