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Entropy 2018, 20(9), 663; https://doi.org/10.3390/e20090663

Cross-Sectoral Information Transfer in the Chinese Stock Market around Its Crash in 2015

School of Management, Harbin Institute of Technology, Harbin 150001, China
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Received: 3 August 2018 / Revised: 23 August 2018 / Accepted: 24 August 2018 / Published: 3 September 2018
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Abstract

This paper applies effective transfer entropy to research the information transfer in the Chinese stock market around its crash in 2015. According to the market states, the entire period is divided into four sub-phases: the tranquil, bull, crash, and post-crash periods. Kernel density estimation is used to calculate the effective transfer entropy. Then, the information transfer network is constructed. Nodes’ centralities and the directed maximum spanning trees of the networks are analyzed. The results show that, in the tranquil period, the information transfer is weak in the market. In the bull period, the strength and scope of the information transfer increases. The utility sector outputs a great deal of information and is the hub node for the information flow. In the crash period, the information transfer grows further. The market efficiency in this period is worse than that in the other three sub-periods. The information technology sector is the biggest information source, while the consumer staples sector receives the most information. The interactions of the sectors become more direct. In the post-crash period, information transfer declines but is still stronger than the tranquil time. The financial sector receives the largest amount of information and is the pivot node. View Full-Text
Keywords: information transfer; Chinese stock sectors; effective transfer entropy; market crash information transfer; Chinese stock sectors; effective transfer entropy; market crash
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Wang, X.; Hui, X. Cross-Sectoral Information Transfer in the Chinese Stock Market around Its Crash in 2015. Entropy 2018, 20, 663.

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