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...

Supply chain collaboration has the potential to address issues of inefficiency and lack of coordination that often drives down the competitiveness of supply chains. However, collaboration in supply chains is difficult due to ever increasing complexity and conflicting objectives prevalent in...