A representative farm olicy impact model was developed using estimate farm-level effects of proposed national government olicies aimed at increasing food security through greater breacf wheat production. The four policy options analysed included the introduction o a bread wheat variev resistant to an insect pest, an unlimited availability of nitrogen fertiliser, and rationing of nitrogen fertiliser at 500 kg per farm. The various policies increased farm income between 2.45 and 18 percent, as farmers made trade-offs between the production of bread wheat and the more profitable durum wheat. Adjustments were made by farmers in the model to meet government-targeted levels of bread wheat production in order to support national food sel sufficiency at minimum cost.Simultaneously, the resources f reed were used to produce more durum wheat. The results suggest a need to analyse interregional and international comparative advantages in wheat production prior to implementing proposed policies aimed at increasing bread wheat output.linear programming an