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...

The paper examines the problem of optimal targeting when households differ in needs. Additively decomposable poverty measures based on the households' deprivation are employed. Needs are modelled carefully: household size and needs are reflected by equivalence scales and weights. The paradox of...