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American Economic Review Vol. 114 No. 5 2024

A Framework for Economic Growth with Capital-Embodied Technical Change

Benjamin F. Jones1; Xiaojie Liu2

1 Northwestern University and NBER (email: ) · 2 Northwestern University (email: )

Abstract

Technological advance is often embodied in capital inputs, like computers, airplanes, and robots. This paper builds a framework where capital inputs advance through (i) increased automation and (ii) increased productivity. The interplay of these two innovation dimensions can produce balanced growth, satisfying the Uzawa Growth Theorem even though technological progress is capital-embodied. The framework can further address structural transformation, general-purpose technologies, the limited macroeconomic impact of computing, and declining productivity growth and labor shares. Overall, this tractable framework can help resolve puzzling tensions between micro-level observations of innovation and balanced growth while providing new perspectives on numerous macroeconomic phenomena.

DOI
10.1257/aer.20221180
Volume
114
Issue
5
Pages
1448-1487
Language
en
Sources
bibtex:phds-export.bib openalex crossref

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