Poverty analysis conducted in Tunisia so far depends heavily upon the choice of poverty lines. The latter are usually constructed by considering a fraction of median incomes. This yields large differentials between urban and rural lines up to a factor 2 leading to the conclusion that the...

In this paper we compute the IF of a general class of estimators for grouped data, namely the class of MPE. We find that this IF can be large although it is bounded. Therefore, we propose a more general class of estimators, the MGP-estimators, which include the class of estimators based on the...