NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

NBER Working Papers by Christian Helmers

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Working Papers

February 2015An Empirical Analysis of Primary and Secondary Pharmaceutical Patents in Chile
with María José Abud Sittler, Bronwyn Hall: w20995
May 2013The Importance (or not) of Patents to UK Firms
with Bronwyn H. Hall, Mark Rogers, Vania Sena: w19089

Published: Bronwyn H. Hall & Christian Helmers & Mark Rogers & Vania Sena, 2013. "The importance (or not) of patents to UK firms," Oxford Economic Papers, Oxford University Press, vol. 65(3), pages 603-629, July. citation courtesy of

April 2012The Choice between Formal and Informal Intellectual Property: A Literature Review
with Bronwyn H. Hall, Mark Rogers, Vania Sena: w17983

The choice between formal and informal intellectual property: A review, with Christian Helmers, Mark Rogers, and Vania Sena, March 2012, revised May 2013, forthcoming in the Journal of Economic Literature. NBER Working Paper No. 17983.

March 2011Innovation and Diffusion of Clean/Green Technology: Can Patent Commons Help?
with Bronwyn H. Hall: w16920

Published: Hall, Bronwyn H. & Helmers, Christian, 2013. "Innovation and diffusion of clean/green technology: Can patent commons help?," Journal of Environmental Economics and Management, Elsevier, vol. 66(1), pages 33-51. citation courtesy of

September 2010The role of patent protection in (clean/green) technology transfer
with Bronwyn H. Hall: w16323

Published: The role of patent protection in (clean/green) technology transfer, with Christian Helmers (Oxford University), Santa Clara High Technology Law Journal 26 (2010): 487-532.

Contact and additional information for this authorAll NBER papers and publicationsNBER Working Papers only

 
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