R & D and the patent premium
By: Ashish Arora, Marco Ceccagnoli, Wesley M. Cohen.
Contributors: Ceccagnoli, Marco.; Cohen, Wesley Marc.; National Bureau of Economic Research.
Series: NBER working paper series -- no. 9431.; Working paper series (National Bureau of Economic Research) -- working paper no. 9431.
Publisher: National Bureau of Economic Research
Published: 2003
Place of publication: Cambridge, Mass
Language: eng
Number of pages: 48
Subjects: Patents; Research, Industrial
Other titles: Research & development, and the patent premium.; Research and development, and the patent premium.
Notes: "January 2003."

Includes bibliographical references (p. 37-38).

Also available in PDF from the NBER world wide web site (www.nber.org).