Patent Renewal Data
NBER Reprint No. 1265
No abstract is available for this paper
Issued in September 1989
NBER Program(s):The Productivity, Innovation, and Entrepreneurship Program
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Unfortunately, this reprint is not available on line. Please consult the journal where it was published.
Machine-readable bibliographic record -
Published: Brookings Papers on Economic Activity, Microeconomics 1989, edited by Martin Neil Baily and Clifford Winston, pp. 331-401. Washington, DC: The Brookings Institution, 1989.