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Large-Scale Simulation of Multi-Asset Ising Financial Markets

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  • Tetsuya Takaishi

Abstract

We perform a large-scale simulation of an Ising-based financial market model that includes 300 asset time series. The financial system simulated by the model shows a fat-tailed return distribution and volatility clustering and exhibits unstable periods indicated by the volatility index measured as the average of absolute-returns. Moreover, we determine that the cumulative risk fraction, which measures the system risk, changes at high volatility periods. We also calculate the inverse participation ratio (IPR) and its higher-power version, IPR6, from the absolute-return cross-correlation matrix. Finally, we show that the IPR and IPR6 also change at high volatility periods.

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  • Tetsuya Takaishi, 2018. "Large-Scale Simulation of Multi-Asset Ising Financial Markets," Papers 1801.05947, arXiv.org.
    • Handle: RePEc:arx:papers:1801.05947
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    File URL: http://arxiv.org/pdf/1801.05947
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