What is the impact of software patent shifts?
Subtitle: evidence from Lotus v. Borland
By: Josh Lerner, Feng Zhu.
Contributors: Zhu, Feng.; National Bureau of Economic Research.
Series: NBER working paper series -- working paper 11168.; Working paper series (National Bureau of Economic Research) -- working paper no. 11168.
Publisher: National Bureau of Economic Research
Published: 2005
Place of publication: Cambridge, Mass
Language: eng
Number of pages: 35
Subjects: Computer software -- Patents -- Economic aspects; Copyright -- Economic aspects
Notes: "March 2005."

Includes bibliographical references (p. 23-24).

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