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Four Seasons of Learning and Engaging Smallholder Farmers - icrisat

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Annex 11-1: Probit Model Estimate <strong>of</strong> Factors Affecting <strong>Farmers</strong> Adoption <strong>of</strong> Improved Soybean Varieties in<br />

Nigeria<br />

Participation in the TL11<br />

(STATUS)<br />

Use <strong>of</strong> improved soybean varieties<br />

(Impvar)<br />

Variables Coefficients Coefficients Marginal effect (dy/dx)<br />

Lage -0.129*<br />

-2.043***<br />

-0.138<br />

(0.070)<br />

(0.621)<br />

Sex a 0.238*<br />

-0.911**<br />

-0.046<br />

(0.146)<br />

(0.410)<br />

Educ2 -0.295**<br />

(0.140)<br />

Educ3 a -0.449<br />

-0.038<br />

(0.414)<br />

Mstatus 0.132<br />

(0.171)<br />

Fexp -0.002<br />

(0.006)<br />

Contact 0.398**<br />

(0.169)<br />

Infva a -0.253<br />

2.767***<br />

0.468<br />

(0.161)<br />

(0.592)<br />

SeedCollab 1.089***<br />

(0.191)<br />

Contfreq3 a -1.022*<br />

-0.132<br />

(0.629)<br />

Soybexp 0.035**<br />

0.002<br />

(0.017)<br />

Vabuy a -2.124***<br />

-0.253<br />

(0.500)<br />

Inverse Mills ratio -1.745***<br />

-0.118<br />

(0.647)<br />

_cons 10.139***<br />

(2.630)<br />

Number <strong>of</strong> observations 400 185<br />

Log likelihood -237.23417 -41.187935<br />

(ª) dy/dx is for discrete change <strong>of</strong> dummy variable from 0 to 1<br />

*=p

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