In this study we analyze recent and proposed maize marketing reforms in Zambia. To capture the effects of changing transport systems, we use a continuous-space model in place of the traditional point-representation model of Takayama and Judge. This method permits us to use prereform data on...

In low-income countries, malnutrition is often most severe among infants of six to twenty-four months. They need higher-density foods than the family diet, but density is a credence attribute. We hypothesize that the premium now paid for heavily advertised brands reflects demand for quality...