Please use this identifier to cite or link to this item: http://hdl.handle.net/10419/53192
Authors: 
Dimitrov, Dinko
Sung, Shao-chin
Year of Publication: 
2008
Series/Report no.: 
Nota di lavoro // Fondazione Eni Enrico Mattei: Sustainable development 98.2008
Abstract: 
We investigate the computational complexity of several decision problems in hedonic coalition formation games and demonstrate that attaining stability in such games remains NP-hard even when they are additive. Precisely, we prove that when either core stability or strict core stability is under consideration, the existence problem of a stable coalition structure is NP-hard in the strong sense. Furthermore, the corresponding decision problems with respect to the existence of a Nash stable coalition structure and of an individually stable coalition structure turn out to be NP-complete in the strong sense.
Subjects: 
Additive Preferences
Coalition Formation
Computational Complexity
Hedonic Games
NP-hard
NP-complete
JEL: 
C63
C70
C71
D02
D70
D71
Document Type: 
Working Paper

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