In this paper we study hedonic games where each player views every other player either as a friend or as an enemy. Two simple priority criteria for comparison of coalitions are suggested, and the corresponding preference restrictions based on appreciation of friends and aversion to enemies are...

In this paper we study hedonic games where each player views every other player either as a friend or as an enemy. Two simple priority criteria for comparison of coalitions are suggested, and the corresponding preference restrictions based on appreciation of friends and aversion to enemies are...

We consider hedonic games with separable preferences, and explore the existence of stable coalition structures if only individual deviations are allowed. For two natural subdomains of separable preferences, namely preference domains based on (1) aversion to enemies and (2) appreciation of...

In this paper we study hedonic games where each player views every other player either as a friend or as an enemy. Two simple priority criteria for comparison of coalitions are suggested, and the corresponding preference restrictions based on appreciation of friends and aversion to enemies are...

Top responsiveness is a concept which provides a model of progressive society in wihch each player pays more attention to the best aspect of each coalition, and is shown to be a sufficient conditaion for the existence of core stable coalition structures. In this paper, we propose a new concept,...