Critical dynamics and global persistence exponent on Taiwan financial market

I-Chun Chen, Hsen-Che Tseng, Ping-Cheng Li and Hung-Jung Chen

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Abstract: We investigated the critical dynamics on the daily Taiwan stock exchange index (TSE) from 1971 to 2005, and the 5-min intraday data from 1996 to 2005. A global persistence exponent $\theta_{p}$ was defined for non-equilibrium critical phenomena \cite{Janssen,Majumdar}, and describing dynamic behavior in an economic index \cite{Zheng}. In recent numerical analysis studies of literatures, it is illustrated that the persistence probability has a universal scaling form $P(t) \sim t^{-\theta_{p}}$ \cite{Zheng1}. In this work, we analyzed persistence properties of universal scaling behavior on Taiwan financial market, and also calculated the global persistence exponent $\theta_{p}$. We found our analytical results in good agreement with the same universality.

Date: 2006-07
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