No need for conspiracy: Self-organized cartel formation in a modified trust game
Abstract
We investigate the dynamics of a trust game on a mixed population where individuals with the role of buyers are forced to play against a predetermined number of sellers, whom they choose dynamically. Agents with the role of sellers are also allowed to adapt the level of value for money of their products, based on payoff. The dynamics undergoes a transition at a specific value of the strategy update rate, above which an emergent cartel organization is observed, where sellers have similar values of below optimal value for money. This cartel organization is not due to an explicit collusion among agents; instead it arises spontaneously from the maximization of the individual payoffs. This dynamics is marked by large fluctuations and a high degree of unpredictability for most of the parameter space, and serves as a plausible qualitative explanation for observed elevated levels and fluctuations of certain commodity prices.
Keywords
Cite
@article{arxiv.1201.3798,
title = {No need for conspiracy: Self-organized cartel formation in a modified trust game},
author = {Tiago P. Peixoto and Stefan Bornholdt},
journal= {arXiv preprint arXiv:1201.3798},
year = {2013}
}
Comments
5 pages, 5 figures [fixes a typo in the text]