Dresden 2003 – wissenschaftliches Programm
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AKSOE: Physik sozio-ökonomischer Systeme
AKSOE 3: Postersitzung
AKSOE 3.9: Poster
Montag, 24. März 2003, 15:45–17:15, P1
Formation of Coalitions in an Investor’s Game — •Emeterio Navarro1 and Frank Schweitzer2,3 — 1Institute for Informatics, Humboldt University, D-10099 Berlin — 2Fraunhofer Institute for Autonomous Intelligent Systems, Schloss Birlinghoven, D-53754 Sankt Augustin — 3Institute for Physics, Humboldt University, D-10099 Berlin
We consider a multi-agent system in which agents form coalitions in order to realize common investment projects. Each project is conducted by an initiatior who has to convince other agents to invest until a threshold value is reached. The decision of an agent to invest depends on the previous experience with the particular initiator, i.e., on the failure or success of the projects conducted by him. We investigate (i) the formation of coalitions, i.e., networks of partners that repeatedly invest together, (ii) the lifetime of these coalitions, and (iii) we show how the dynamics depends on crucial parameters such as the memory or the risk disposition of the agents.