A Basic Example

• Cooperation on anonymous markets (Schüßler)

• Plausible assumptions to describe an “anonymous market”: Players (engaged in a repeated prisoner's dilemma) may break off interaction any time.

• Simulation results: Depending on the choice of parameter values, cooperation prevails on an “anonymous market”.

• General Conclusion: Simulation establishes a point against the normativist assumption that cooperative behavior depends on central authority or strong social bonds.