Negassa, Asfaw; Hellin, Jonathan; Shiferaw, Bekele A. - Centro Internacional de Mejoramiento de Maíz y Trigo … - 2012
The Heckman two-stage estimation procedure was used to investigate factors influencing the adoption of modern and/or landrace wheat varieties and spatial diversity of wheat varieties in Turkey. In the first stage, the multinomial logit choice model (MNLM) was used to determine factors...