1st International ICST Workshop on Technologies for Ambient Information Society

Research Article

Stabilization of the minimum latency flow in Braess graphs by state-dependent tax

  • @INPROCEEDINGS{10.4108/ICST.BIONETICS2008.4700,
        author={Takurou  Misaka and Takafumi  Kanazawa and Toshimitsu  Ushio and Yasuhiko  Fukumoto},
        title={Stabilization of the minimum latency flow in Braess graphs by state-dependent tax},
        proceedings={1st International ICST Workshop on Technologies for Ambient Information Society},
        publisher={ACM},
        proceedings_a={TAIS},
        year={2010},
        month={5},
        keywords={Selfish routing Braess’s paradox evolutionary game theory tax and subsidy},
        doi={10.4108/ICST.BIONETICS2008.4700}
    }
    
  • Takurou Misaka
    Takafumi Kanazawa
    Toshimitsu Ushio
    Yasuhiko Fukumoto
    Year: 2010
    Stabilization of the minimum latency flow in Braess graphs by state-dependent tax
    TAIS
    ICST
    DOI: 10.4108/ICST.BIONETICS2008.4700
Takurou Misaka1,*, Takafumi Kanazawa1,*, Toshimitsu Ushio1,*, Yasuhiko Fukumoto1
  • 1: Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan.
*Contact email: misaka@hopf.sys.es.osaka-u.ac.jp, kanazawa@sys.es.osaka-u.ac.jp, ushio@sys.es.osaka-u.ac.jp

Abstract

A selfish routing game is a simple model of selfish behaviors in networks. Braess's paradox is a well-known example of inefficiencies existing in the selfish routing games and it is an important problem to reduce such inefficiencies. To resolve such a problem, a notion of a marginal cost tax has been proposed. Although the marginal cost tax makes the minimum latency flow a Nash equilibrium, it also imposes an additional latency on the minimum latency flow. Thus, we apply replicator dynamics with a subsidy and a capitation tax to Braess graphs and extend the capitation tax to a state-dependent one. Using two simplest Braess graphs B1 and B2, we show that the minimum latency flow of the Braess graphs can be stabilized by our proposed state-dependent tax.