The work we present in this article initiated the formal study of fractional hedonic games
(FHGs), coalition formation games in which the utility of a player is the average value he …

We consider fractional hedonic games, a subclass of coalition formation games that can be
succinctly modeled by means of a graph in which nodes represent agents and edge weights …

In coalition formation games self-organized coalitions are created as a result of the strategic
interactions of independent agents. In this paper we assume that for each couple of agents …

Local Core Stability in Simple Symmetric Fractional Hedonic Games Page 1 Local Core
Stability in Simple Symmetric Fractional Hedonic Games Raffaello Carosi Gran Sasso …

Abstract The Price of Anarchy measures the welfare loss caused by selfish behavior: it is
defined as the ratio of the social welfare in a socially optimal outcome and in a worst Nash …

Hedonic games, introduced in [13], model the formation of coalitions of agents. They are
games in which agents have preferences over the set of all possible agent coalitions, and …

Additively separable hedonic games and fractional hedonic games have received
considerable attention. These are coalition forming games of selfish agents based on their …

We consider a class of coalition formation games that can be succinctly represented by
means of hypergraphs and properly generalizes symmetric additively separable hedonic …

We consider social distance games, where a group of utility maximizing players, connected
over a network representing social proximity, wish to form coalitions (or clusters) so that they …

We consider graph-based hedonic games such as simple symmetric fractional hedonic
games and social distance games, where a group of utility maximizing players have hedonic …