The paper a discusses the interaction properties between preference and choice of coalitions in a strategic interaction. A language is presented to talk about the conflict between coalitionally optimal and socially optimal choices. Norms are seen as social constructions that enable to enforce socially desirable outcomes. aThis paper has been presented at the Ninth International Workshop on Deontic Logic in Computer Science (DEON'08) and it is to be found in the conference proceedings (see [4]).
Jan Broersen, Rosja Mastop, John-Jules Ch. Meyer,