We provide a generalization of the position value (Meessen 1988) that allows players to benefit from transfers of worth by investing in communication links. The player who invests the most in a communication link obtains transfers of worth from the second one. We characterize this new allocation...

Most welfare studies are based on the assumption that wellbeing is monotonically related to the variables used for the analysis. While this assumption can be regarded as reasonable for many dimensions of wellbeing like income, education, or empowerment, there are some cases where it is...

In this note we make a comparison between the class of monotonic TU cooperative games and the class of superadditive TU cooperative games. We first provide the equivalence between a weakening of the class of su- peradditive TU games and zero-monotonic TU games. Then, we show that zero-monotonic...

Cet exposé suivi d'un long débat avec des statisticiens résume les principaux résultats de l'enquête DREES-BVA sur le travail bénévole en France en 2010 et compare avec l'enquête similaire INSEE Vie associative 2002 pour retracer les principales évolutions. Les problèmes...