Abstract
This paper concerns with two reasons for stock price fluctuation, the instinctive stochastic fluctuation and the fluctuation caused by the spread of information. They are constructed by compound Poisson process and continuum percolation model separately. Combining the two models, the authors get a Lévy process for the price fluctuation that can explain the fat-tail phenomenon in stock market. The fat-tails are also presented in numerical simulations.
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This research was supported by the Natural Science Foundation of Tianjin, China under Grant No. 09JCYBLJC01800 and the China Postdoctoral Science Foundation Funded Project under Grant No. 20110491248.
This paper was recommended for publication by Editor ZOU Guohua.
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Wang, N., Rong, X. & Dong, G. A continuum percolation model for stock price fluctuation as a Lévy process. J Syst Sci Complex 28, 175–189 (2015). https://doi.org/10.1007/s11424-014-2273-z
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DOI: https://doi.org/10.1007/s11424-014-2273-z