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Experimental evidence for the interplay between individual wealth and transaction network

  • Jie-Jun Tseng
  • Sai-Ping Li
  • Sun-Chong Wang
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    We conduct a market experiment with human agents in order to explore the structure of transaction networks and to study the dynamics of wealth accumulation. The experiment is carried out on our platform for 97 days with 2,095 effective participants and 16,936 times of transactions. From these data, the hybrid distribution (log-normal bulk and power-law tail) in the wealth is observed and we demonstrate that the transaction networks in our market are always scale-free and disassortative even for those with the size of the order of few hundred. We further discover that the individual wealth is correlated with its degree by a power-law function which allows us to relate the exponent of the transaction network degree distribution to the Pareto index in wealth distribution.

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    File URL: http://arxiv.org/pdf/1001.3731
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    Paper provided by arXiv.org in its series Papers with number 1001.3731.

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    Date of creation: Jan 2010
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    Publication status: Published in Eur. Phys. J. B 73, 69 - 74 (2010)
    Handle: RePEc:arx:papers:1001.3731
    Contact details of provider: Web page: http://arxiv.org/

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