This report focuses on growing trade infood staples in the Southern and Eastern African region ofAfrica as one of the largest growth opportunities availableto African farmers. This paper examines the impact ofregional trade in food staples, both for maintaining farmerincentives in surplus food production zones and formoderating price spikes in deficit areas. The paper beginsby identifying the geographic extent of major maize marketsheds in Eastern and Southern Africa. It then focuses on theSouth Eastern Africa market shed, the one centered inMalawi, Northern Mozambique and Zambia. This analysisconcentrates on the regions two most important food staples,maize and cassava. Given the volatility of the region'srainfed maize production, this section aims to empiricallyevaluate the impact of maize production shocks on staplefood prices, production incentives, consumption and trade.To do so, the paper develops a spatially disaggregated modelo f maize and cassava markets in order to evaluate theimpact of supply shocks, with and without cross-border trade.