This paper analyzes the sequential decision to adopt two site-specific technologies, soil testing and variable rate technology, and the impact of adoption on nitrogen productivity. The results indicate that while farm location was a key variable influencing adoption of soil testing, farm size, human capital, and innovativeness of farmers had a significant impact on adoption of variable rate technology in four Midwestern states. A double selectivity model applied to correct for sample selection bias shows that adoption leads to significant gains in nitrogen productivity for farms with below average soil quality but statistically insignificant gains for farms with above average soil quality.

Original languageEnglish (US)
Pages (from-to)35-51
Number of pages17
JournalAmerican Journal of Agricultural Economics
Issue number1
StatePublished - 2001


  • Bivariate probit
  • Midwest
  • Self-selection
  • Soil testig
  • Spatial variability
  • Variable rate technology

ASJC Scopus subject areas

  • Agricultural and Biological Sciences (miscellaneous)
  • Economics and Econometrics


Dive into the research topics of 'Sequential adoption of site-specific technologies and its implications for nitrogen productivity: A double selectivity model'. Together they form a unique fingerprint.

Cite this