Innovation, imitation, and intellectual property rights
By: Elhanan Helpman.
Contributors: National Bureau of Economic Research.
Series: NBER working papers series -- working paper no. 4081; Working paper series (National Bureau of Economic Research) -- working paper no. 4081.
Publisher: National Bureau of Economic Research
Published: 1992
Place of publication: Cambridge, MA
Language: eng
Number of pages: 48
Subjects: Intellectual property (International law) -- Econometric models.
Notes: "May 1992."

Includes bibliographical references (p. 47-48).