The Rate of Obsolescence of Patents, Research Gestation Lags, and the Private Rate of Return to Research Resources

Ariel Pakes & Mark Schankerman
Published Date
Copyright 1984
ISBN 0-226-30884-7
Book: R&D, Patents, and Productivity
Book editor: Zvi Griliches
PUBLISHER: University of Chicago Press
Download Purchase Book

Published From Paper

The Rate of Obsolescence Of Knowledge, Research Gestation Lags, and the Private Rate of Return to Research Resources
- Working Paper
This paper points out the conceptual distinction between the rates of decay in the physical productivity of...

More from the NBER

In addition to working papers, the NBER disseminates affiliates’ latest findings through a range of free periodicals — the NBER Reporter, the NBER Digest, the Bulletin on Health, and the Bulletin on Entrepreneurship — as well as online conference reports, video lectures, and interviews.

2025, 17th Annual Feldstein Lecture, N. Gregory Mankiw," The Fiscal Future"
2025, 17th Annual Feldstein Lecture, N. Gregory Mankiw," The Fiscal Future"
  • Feldstein Lecture
N. Gregory Mankiw, Robert M. Beren Professor of Economics at Harvard University, presented the 2025 Martin Feldstein...
2025 Methods Lecture, Raj Chetty, "Uncovering Causal Mechanisms: Mediation Analysis and Surrogate Indices"
2025, Methods Lecture, Raj Chetty and Kosuke Imai, "Uncovering Causal Mechanisms: Mediation Analysis and Surrogate Indices"
  • Methods Lectures
SlidesBackground materials on mediationImai, Kosuke, Dustin Tingley, and Teppei Yamamoto. (2013). “Experimental Designs...
2025 International Trade and Macroeconomics, "Panel on The Future of the Global Economy"
2025 International Trade and Macroeconomics, "Panel on The Future of the Global Economy"
  • Panel Discussion
Supported by the Alfred P. Sloan Foundation grant #G-2023-19633, the Lynde and Harry Bradley Foundation grant #20251294...