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Inventing modern invention: The professionalization of technological progress in the US

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  • Hartog, Matte
  • Gomez-Lievano, Andres
  • Hausmann, Ricardo
  • Neffke, Frank

Abstract

Over the course of the mid-19th and early 20th century, the US transformed from an agricultural economy to the frontier in technology. To study this transition, we digitize half a million pages of patent yearbooks that describe inventors, organizations and technologies on over 1.6M patents. We combine this with demographic information from US census records and information on corporate research from large-scale repeated surveys of industrial research labs. Our data reveal that in the early 1920s a new system of innovation — based on teamwork and engineers — started to rapidly replace the existing craftsmanship-based invention that had dominated innovation in the 19th century. We argue that this new system relied on an organizational innovation: industrial research labs. These labs supported high-skill teamwork, replacing the collaborations within families with professional ties in firms and industrial research labs. The systemic shift in innovation had far-reaching consequences: it changed the division of labor in invention, led to an explosion of novelty and teamwork, and reshaped the geography of innovation in the US.

Suggested Citation

  • Hartog, Matte & Gomez-Lievano, Andres & Hausmann, Ricardo & Neffke, Frank, 2026. "Inventing modern invention: The professionalization of technological progress in the US," Research Policy, Elsevier, vol. 55(3).
    • Handle: RePEc:eee:respol:v:55:y:2026:i:3:s0048733325002112
    DOI: 10.1016/j.respol.2025.105382
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    2. Frank Neffke & Angelica Sbardella & Ulrich Schetter & Andrea Tacchella, 2024. "Economic Complexity Analysis," Papers in Evolutionary Economic Geography (PEEG) 2430, Utrecht University, Department of Human Geography and Spatial Planning, Group Economic Geography, revised Oct 2024.

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