The paper investigates the definition of equity-regarding poverty measures when there are different household types in the population. It derives the implications of a between-type regressive transfer principle for poverty measures, for the choice of poverty lines and for the measurement of...

Most methods for the analysis of distributional change rely on the changes in the income of a particular group of people, taking either the situation of this group in the previous period, or the average change in the population, as reference point. By contrast, we propose a measure of...

Equivalence scales are often used to adjust household income for differences in characteristics that affect needs. For example, a family of two is assumed to need more income than a single person, but not double due to economies of scale in consumption. However, in comparing economic well-being...