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Multiagent Systems

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Prof. Dr. Jürgen Dix · Department of Informatics, TUC <strong>Multiagent</strong> <strong>Systems</strong>, WS 06/07 372/731<br />

5. Nets and coalitions 3. Coalition Formation<br />

Definition 5.20 (Characteristic Function Game (CFG))<br />

In a CFG the value of a coalition S is given by a<br />

characteristic function v S .<br />

Thus it is independent of the nonmembers.<br />

But<br />

1 Positive Externalities: Overlapping goals.<br />

Nonmembers perform actions and move the<br />

world closer to the coalition’s goal state.<br />

2 Negative Externalities: Shared resources.<br />

Nonmembers may use the resources so that<br />

not enough is left.

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