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Cited by 1,133

The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.

Innovating Firms and Aggregate Innovation

Klette, Tor Jakob, Kortum, Samuel·2004·Journal of Political Economy

Abstract

We develop a parsimonious model of innovation to confront firm‐level evidence. It captures the dynamics of individual heterogeneous firms, describes the behavior of an industry with firm entry and exit, and delivers a general equilibrium model of technological change. While unifying the theoretical analysis of firms, industries, and the aggregate economy, the model yields insights into empirical work on innovating firms. It accounts for the persistence of firms’ R&D investment, the concentration of R&D among incumbents, the link between R&D and patenting, and why R&D as a fraction of revenues is positively correlated with firm productivity but not with firm size or growth.

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Metadata

Authors
Klette, T. J., & Kortum, S.
Venue
Journal of Political Economy
Published
2004-10
Volume
112
Issue
5
Pages
986-1018
ISSN
  • 0022-3808 (ISSN-L)
  • 1537-534X
OpenAlex
W3125350312
Cited by
1,133
References
3
FWCI
45.04
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Innovating Firms and Aggregate Innovation. https://app.cochat.ai/papers/10.1086/422563
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Klette, T. J., & Kortum, S. (2004). Innovating Firms and Aggregate Innovation. Journal of Political Economy. https://doi.org/10.1086/422563

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.