Dans ce papier nous analysons le problème de l'estimation d'une fonction de distance radiale. Comme les distances à la frontiere ne sont pas observées, il faut choisir une variable représentative. Ce choix est crucial car, non seulement il influence les résultats des distances estimées,...

In this paper we analyze the robustness properties of GMM estimators and GMM based tests, in view of an application to the robust estimation and comparison of some well known one factor models of the term structure of interest rates. We show that GMM estimators and tests are robust if and only...

Taking a benchmark scenario, the current situation in Switzerland, and using a microsimulation technique, we compare the effectiveness of various income maintenance schemes for reducing inequality and poverty. A full negative income tax allowance designed to eliminate poverty, is shown to reduce...