R&D and productivity
Subtitle: a survey of econometric studies at the firm level
By: Jacques Mairesse, Mohamed Sassenou.
Contributors: Sassenou, Mohamed.; National Bureau of Economic Research.
Series: NBER working papers series -- working paper no. 3666; Working paper series (National Bureau of Economic Research) -- working paper no. 3666.
Publisher: National Bureau of Economic Research
Published: 1991
Place of publication: Cambridge, MA
Language: eng
Number of pages: 34
Subjects: Research, Industrial -- United States.
Notes: "March 1991."

Includes bibliographical references (p. 32-34).