A model of research, patenting, and productivity growth
By: Samuel Kortum.
Contributors: National Bureau of Economic Research.
Series: NBER working paper series -- working paper no. 4646; Working paper series (National Bureau of Economic Research) -- working paper no. 4646.
Publisher: National Bureau of Economic Research
Published: 1994
Place of publication: Cambridge, MA
Language: eng
Number of pages: 55
Subjects: Research, Industrial -- Mathematical models.; Patents -- Economic aspects -- Mathematical models.; Industrial productivity -- Mathematical models.
Notes: "February 1994."

Includes bibliographical references (p. 37-40).

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Electronic version available via the Internet at the NBER World Wide Web site.