From 2010 through 2012 harvest seasons, Zambian farmers produced three consecutive maize bumper harvests. The total maize production during this period was 8.6 million metric tonness, of which 4.6 million metric tonnes was a marketable surplus (CSO/MAL various years). This far exceeded the...

Wheat consumption in Sub-Saharan Africa (SSA) is increasing rapidly, faster than any other major food grain. Between 2000 and 2009, per capita wheat consumption in SSA increased at a rate of 0.35 kilogram (kg)/year, outpacing maize and rice. Total wheat consumption increased by nearly 650,000...

This paper develops a model for demand-system estimations, whose coefficients are own-price Marshallian elasticities and elasticities of substitution between goods. The model satisfies the homogeneity, symmetry and, eventually, adding-up restrictions implied by consumer theory. It is primarily...