Adoption Of Improved Maize Varieties In Imo State As A Two – Stage Decision Process

  • DO Ohajianya Department o Agricultural Economics, Federal University of Technology Owerri, Nigeria
  • DO Onu Department of Agricultural Extension, Federal University of Technology, Owerri. P.M.B 1526, Owerri, Imo State, Nigeria


This paper analyzes the appropriateness of certain statistical techniques in technology adoption studies, and suggests following empirical evidence, that a two –stage probit model may most times be more useful. The model allows for a flexible specification of the process of technology adoption from one stage to two stages, facilitates the modeling of non-adopters and puts right the violation of full information. An application of the model to the adoption of improved maize varieties in Imo state revealed that the two-stage probit model is superior to the univariate probit model having produced a better maximum log- likelihood value and more significant variables. It is therefore recommended for modeling adoption studies.
Global Approaches to Extension Practice Vol.1(1) 2005: 91-96

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eISSN: 0794-1005