James F. Evans Collection, A multi-market model of technological change in food production is used to simulate the long-run income distributional implications of differential diffusion of currently available wheat technologies in Pakistan. The results indicate that a research agenda emphasizing technologies suited to Pakistan's favored production environments would enhance overall production without compromising inter-group equity. It is found that when commodity prices are market determined, net consuming households are the major beneficiaries of technological change. However, in the more common situation of government intervention in markets for staple foods, net producing households are the principal beneficiaries of change. (original)