Abstract
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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References
V. Pareto, Cours d’Économique Politique II (Macmillan, Paris, 1897)
R. Gibrat, Les inégalitś économiques (Sirey, Paris 1931)
W. Souma, arXiv:cond-mat/0202388
A. Chatterjee, S. Yarlagadda, B.K. Chakrabarti, Econophysics of Wealth Distributions (Springer Milan, 2005)
J.P. Bouchaud, M. Mézard, Physica A 282, 536 (2000)
S. Solomon, P. Richmond, Physica A 299, 188 (2001)
A. Drǎgulescu, V.M. Yakovenko, Eur. Phys. J. B 17, 723 (2000)
A. Chatterjee, B.K. Chakrabarti, Eur. Phys. J. B 60, 135 (2007)
G.M. Caon, S. Goncalves, J.R. Iglesias, Eur. Phys. J. B 143, 69 (2007)
A. Chatterjee, Eur. Phys. J. B 67, 593 (2009)
W. Souma, Y. Fujiwara, H. Aoyama, arXiv:cond-mat/0108482
W. Souma, Y. Fujiwara, H. Aoyama, Meeting the Challenge of Social Problems via Agent-Based Simulation (Springer, Tokyo, 2003), p. 37
T. Di Matteo, T. Aste, S.T. Hyde, The Physics of Complex Systems (New Advances and Perspectives) (IOS Press, Amsterdam, 2004), p. 435
D. Garlaschelli, M.I. Loffredo, Physica A 338, 113 (2004)
R. Coelho, Z. Néda, J.J. Ramasco, M.A. Santosa, Physica A 353, 515 (2005)
D. Garlaschelli, M.I. Loffredo, J. Phys. A: Math. Theor. 41, 224018 (2008)
D. Garlaschelli, M.I. Loffredo, Phys. Rev. Lett. 93, 188701 (2004)
D. Garlaschelli, M.I. Loffredo, Physica A 355, 138 (2005)
D. Garlaschelli, T. Di Matteo, T. Aste, G. Caldarelli, M.I. Loffredo, Eur. Phys. J. B 57, 159 (2007)
S.C. Wang, C.Y. Yu, K.P. Liu, S.P. Li, Proc. IEEE/WIC/ACM International Conference on Web Intelligence (WI04) (IEEE Computer Society, Washington DC 173, 2004)
S.C. Wang, S.P. Li, C.C. Tai, S.H. Chen, Quantitative Finance 9, 9 (2009)
S.C. Wang, J.J. Tseng, C.C. Tai, K.H. Kai, W.S. Wu, S.H. Chen, S.P. Li, Eur. Phys. J. B 62, 105 (2008)
H. Takayasu, A.-H. Sato, M. Takayasu, Phys. Rev. Lett. 79, 966 (1997)
D. Sornette, Phys. Rev. E 57, 4811 (1998)
R.N. Mantegna, H.E. Stanley, Introduction to Econophysics: Correlations and Complexity in Finance (Cambridge University Press, Cambridge, 2000)
J.J. Tseng, S.P. Li, S.H. Chen, S.C. Wang, Adv. Compl. Sys. 12, 87 (2009)
R. Albert, A. Barabási, Rev. Mod. Phys. 74, 47 (2002)
R. Pastor-Satorras, A. Vázquez, A. Vespignani, Phys. Rev. Lett. 87, 258701 (2001)
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Tseng, JJ., Li, SP. & Wang, SC. Experimental evidence for the interplay between individual wealth and transaction network. Eur. Phys. J. B 73, 69–74 (2010). https://doi.org/10.1140/epjb/e2009-00424-8
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DOI: https://doi.org/10.1140/epjb/e2009-00424-8