often made incorrectly, based on elasticity calculations at mean income. We provide in this paper an overall integrated … elasticity differs from one, and the rank of the model increases. …

sectors with high expenditure elasticity and are therefore less exposed to fluctuations in their prices. Second, low income … households tend to work more in service occupations that are used most intensely in sectors with high expenditure elasticity and … expenditure elasticity increases. This implies an increase in:(1) the relative prices of goods or services in these sectors (2 …