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Strategy-proofness and essentially single-valued cores revisited
(Université de Montréal. Département de sciences économiques., 2014-04)
We consider general allocation problems with indivisibilities where agents' preferences possibly exhibit externalities. In such contexts many different core notions were proposed. One is the gamma-core whereby blocking is ...
Externalities and the nucleolus
(Université de Montréal. Département de sciences économiques., 2017-09)
In most economic applications, externalities prevail: the worth of a coalition depends on how the other players are organized. We show that there is a unique natural way of extending the nucleolus from (coalitional) games ...
Regulation via the Polluter-Pays Principle
(Université de Montréal. Département de sciences économiques., 2010-12-13)
We consider the problem of regulating an economy with environmental pollution. We
examine the distributional impact of the polluter-pays principle which requires that any agent compensates all other agents for the damages ...