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Journal of Political Economy Vol. 122 No. 1 2014

Knowledge Growth and the Allocation of Time

Robert E. Lucas1; Benjamin Moll2

1 University of Chicago · 2 Princeton University

open access

Abstract

We analyze a model economy with many agents, each with a different productivity level. Agents divide their time between two activities: producing goods with the production-related knowledge they already have and interacting with others in search of new, productivity-increasing ideas. These choices jointly determine the economy’s current production level and its rate of learning and real growth. We construct the balanced growth path for this economy. We also study the allocation chosen by an idealized planner who takes into account and internalizes the external benefits of search. Finally, we provide three examples of alternative learning technologies and show that the properties of equilibrium allocations are quite sensitive to two of these variations.

DOI
10.1086/674363
Volume
122
Issue
1
Pages
1-51
Language
en
Sources
bibtex:phds-export.bib openalex crossref

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