Endogeneity Test of Seed on Yield in Nigeria

Researchers treated seed technology and crop yield as exogenous, thereby generating bias estimates. In practice, increases it’s stimulated by social capital other factors. This paper develops a choice model of maize-seed exogenously, then tested corrected for causality. A multistage sampling procedure was adopted using seven Agricultural Development Programme zones drawn from purposively selected Oyo Osun states. block each randomly per zone. Twenty-one cells were selected, data collected 385 respondents structured questionnaire: Data analyzed Ordinary Least Square Two-Stage α 0.05. Durbin score chi2(1) = 6.65 (p= 0.009) Wu-Haussmann F (1,37) 6.431 (p 0.012), showed reverse causality that resolved the model. The result indicated education (β=-0.53), quantity (β=-0.13), price (β=-0.08), negatively affected while farm size (β=2.05), fertilizer (β=0.004), herbicide (β=0.22), output-price (β=0.02), meeting attendance index(β=0.02), improved ((β=2.66), had positive influence. Social spurs use seed, increase maize yield. Consequently, active participation in groups is recommended to