Learning By Doing and the Choice of Technology
This paper explores a one-agent Bayesian model of learning by doing and technological choice. To produce output, the agent can choose among various technologies. The beneficial effects of learning by doing are bounded on each technology, and so long-run growth in output can take place only if the agent repeatedly switches to better technologies. As the agent repeatedly uses a technology, he learns about its unknown parameters, and this accumulated expertise is a form of human capital. But when the agent switches technologies, part of this human capital is lost. It is this loss of human capital that may prevent the agent from moving up the quality ladder of technologies as quickly as he can, since the loss is greater the bigger is the technological leap. We analyze the global dynamics. We find that a human-capital- rich agent may find it optimal to avoid any switching of technologies, and therefore to experience no long-run growth. On the other hand, a human-capital-poor agent, who because of his lack of skill is not so attached to any particular technology, can find it optimal to switch technologies repeatedly, and therefore enjoy long-run growth in output. Thus the model can give rise to overtaking.
|Date of creation:||May 1994|
|Date of revision:|
|Publication status:||published as "Learning By Doing and the Choice of Technology" Econometrica, November 1996: pp.1299-1310.|
|Contact details of provider:|| Postal: |
Web page: http://www.nber.org
More information through EDIRC
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Nyarko, Yaw, 1994. "On the Convexity of the Value Function in Bayesian Optimal Control Problems," Economic Theory, Springer, vol. 4(2), pages 303-09, March.
- Stokey, Nancy L, 1991.
"Human Capital, Product Quality, and Growth,"
The Quarterly Journal of Economics,
MIT Press, vol. 106(2), pages 587-616, May.
- Nancy L. Stokey, 1990. "Human Capital, Product Quality, and Growth," Discussion Papers 883, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
- Nancy L. Stokey, 1990. "Human Capital, Product Quality, And Growth," NBER Working Papers 3413, National Bureau of Economic Research, Inc.
- Prescott, Edward C, 1972. "The Multi-Period Control Problem Under Uncertainty," Econometrica, Econometric Society, vol. 40(6), pages 1043-58, November.
- Robert Wilson, 1975. "Informational Economies of Scale," Bell Journal of Economics, The RAND Corporation, vol. 6(1), pages 184-195, Spring.
When requesting a correction, please mention this item's handle: RePEc:nbr:nberwo:4739. See general information about how to correct material in RePEc.
If references are entirely missing, you can add them using this form.