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Network architecture and traffic flows

Author

Listed:
  • John Morgan

    (University of California, Berkeley)

  • Henrik Orzen

    (University of Nottingham)

  • Martin Sefton

    (University of Nottingham)

Abstract

This paper presents theory and experiments to investigate how network architecture influences route-choice behavior by comparing outcomes across several different networks. The network changes we consider are based on abstract examples illustrating the Pigou-Knight-Downs and Braess Paradoxes. We show that these paradoxes are specific examples of more general classes of network change properties that we term the “least congestible route” and “size” principles, respectively. We find that technical improvements to networks induce adjustments in traffic flows in the direction predicted by equilibrium theory. In the case of network changes based on the Pigou-Knight-Downs Paradox, these adjustments undermine short-term payoff improvements. In the case of network changes based on the Braess Paradox, these adjustments reinforce the counter-intuitive, but theoretically predicted, effect of reducing payoffs to network users.

Suggested Citation

  • John Morgan & Henrik Orzen & Martin Sefton, 2006. "Network architecture and traffic flows," Discussion Papers 2006-12, The Centre for Decision Research and Experimental Economics, School of Economics, University of Nottingham.
    • Handle: RePEc:not:notcdx:2006-12
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    Cited by:

    1. John Morgan & Henrik Orzen & Martin Sefton, 2012. "Endogenous entry in contests," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 51(2), pages 435-463, October.
    2. Wilfred Amaldoss & Teck-Hua Ho & Aradhna Krishna & Kay-Yut Chen & Preyas Desai & Ganesh Iyer & Sanjay Jain & Noah Lim & John Morgan & Ryan Oprea & Joydeep Srivasatava, 2008. "Experiments on strategic choices and markets," Marketing Letters, Springer, vol. 19(3), pages 417-429, December.
    3. John Morgan & Henrik Orzen & Martin Sefton, 2012. "Endogenous entry in contests," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 51(2), pages 435-463, October.

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