Self-sufficiency of the house is practiced in many parts of the world but ignored in economic theory, just as socialist collectivization is assumed to have brought household self-sufficiency to an end. The ideals of self-sufficiency, however, continue to shape economic activity in a wide range...

Studies of risk and its consequences tend to focus on one risk factor, such as a drought or an economic crisis. Yet 2003 household surveys in rural Kilimanjaro and Ruvuma, two cash-crop-growing regions in Tanzania that experienced a precipitous coffee price decline around the turn of the...