Consumer demand for poultry products in each region is represented by a four- level nested Constant Elasticity of Substitution (CES) demand system (see figure 1). At the bottom level, consumers choose among alternative sources of imported high-value poultry products or low-value poultry products, respectively. We have chosen to use an Armington specification due to the variation in unit value across exporters for a given importing region (see table 1). This price variation indicates there are some differences across countries in the specific types of high- or low-value products being traded. Thus, the low-value poultry being exported.
