NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Patents and R&D at the Firm Level: A First Look

Ariel Pakes, Zvi Griliches

Chapter in NBER book R&D, Patents, and Productivity (1984), Zvi Griliches, editor (p. 55 - 72)
Published in 1984 by University of Chicago Press
© 1984 by the National Bureau of Economic Research

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This chapter first appeared as NBER working paper w0561, Patents and R and D at the Firm Level: A First Look, Ariel Pakes, Zvi Griliches
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