Induced Innovation in United States Agriculture, 1880–1990: Time Series Tests and an Error Correction Model

Colin Thirtle, David Schimmelpfennig, Robert E Townsend · 2002 · American Journal of Agricultural Economics

Summary. This paper tests the induced innovation hypothesis in U.S. agriculture from 1880 to 1990 using an error correction model. The analysis confirms that changes in factor prices and research spending drive technological change that saves expensive inputs. The study separates factor substitution from technological bias, establishing that price signals and R&D investment causally precede the development of labor-saving and land-saving innovations in American agriculture.

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Thirtle, C., Schimmelpfennig, D., & Townsend, R. E.. (2002). Induced Innovation in United States Agriculture, 1880–1990: Time Series Tests and an Error Correction Model. American Journal of Agricultural Economics. https://doi.org/10.1111/1467-8276.00322

@article{thirtle-2002-induced-innovation-united-states-agriculture,
  title   = {Induced Innovation in United States Agriculture, 1880–1990: Time Series Tests and an Error Correction Model},
  author  = {Colin Thirtle and David Schimmelpfennig and Robert E Townsend},
  journal = {American Journal of Agricultural Economics},
  year    = {2002},
  doi     = {10.1111/1467-8276.00322},
  url     = {https://doi.org/10.1111/1467-8276.00322}
}

TY  - JOUR
TI  - Induced Innovation in United States Agriculture, 1880–1990: Time Series Tests and an Error Correction Model
AU  - Colin Thirtle
AU  - David Schimmelpfennig
AU  - Robert E Townsend
JO  - American Journal of Agricultural Economics
PY  - 2002
DO  - 10.1111/1467-8276.00322
UR  - https://doi.org/10.1111/1467-8276.00322
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Details

DOI: 10.1111/1467-8276.00322
Countries: United States
Regions: North America
Categories: agtech, innovation-theory
Added: 2026-04-28