Artificial Intelligence Review

, Volume 26, Issue 1–2, pp 103–114

The effects of viscosity in choice and refusal IPD environments


DOI: 10.1007/s10462-007-9039-0

Cite this article as:
Howley, E. & O’Riordan, C. Artif Intell Rev (2006) 26: 103. doi:10.1007/s10462-007-9039-0


An objective of multi-agent systems is to build robust intelligent systems capable of existing in complex environments. These systems are often characterised as being uncertain and open to change which make such systems far more difficult to design and understand. Some of this uncertainty and change occurs in open agent environments where agents can freely enter and exit the system. In this paper we will examine this form of population change in a game theoretic setting. These simulations involve studying population change through a number of alternative viscosity models. The simulations will examine two possible trust models. All our simulations will use a simple choice and refusal game environment within which agents may freely choose with which of their peers to interact.


Trust Cooperation Multi-agent systems Prisoner’s dilemma Implicit trust Explicit trust 



Prisoner’s dilemma


Iterated prisoner’s Dilemma

Copyright information

© Springer Science+Business Media B.V. 2007

Authors and Affiliations

  1. 1.Department of Information TechnologyNational University Of IrelandGalwayIreland

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