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Forecasting Financial Extremes: A Network Degree Measure of Super-exponential Growth

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  • Wanfeng Yan
  • Edgar van Tuyll van Serooskerken

Abstract

Investors in stock market are usually greedy during bull markets and scared during bear markets. The greed or fear spreads across investors quickly. This is known as the herding effect, and often leads to a fast movement of stock prices. During such market regimes, stock prices change at a super-exponential rate and are normally followed by a trend reversal that corrects the previous over reaction. In this paper, we construct an indicator to measure the magnitude of the super-exponential growth of stock prices, by measuring the degree of the price network, generated from the price time series. Twelve major international stock indices have been investigated. Error diagram tests show that this new indicator has strong predictive power for financial extremes, both peaks and troughs. By varying the parameters used to construct the error diagram, we show the predictive power is very robust. The new indicator has a better performance than the LPPL pattern recognition indicator.

Suggested Citation

  • Wanfeng Yan & Edgar van Tuyll van Serooskerken, 2015. "Forecasting Financial Extremes: A Network Degree Measure of Super-exponential Growth," Papers 1505.04060, arXiv.org.
    • Handle: RePEc:arx:papers:1505.04060
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    Cited by:

    1. Zhi-Qiang Jiang & Gang-Jin Wang & Askery Canabarro & Boris Podobnik & Chi Xie & H. Eugene Stanley & Wei-Xing Zhou, 2018. "Short term prediction of extreme returns based on the recurrence interval analysis," Quantitative Finance, Taylor & Francis Journals, vol. 18(3), pages 353-370, March.
    2. Dong-Rui Chen & Chuang Liu & Yi-Cheng Zhang & Zi-Ke Zhang, 2019. "Predicting Financial Extremes Based on Weighted Visual Graph of Major Stock Indices," Complexity, Hindawi, vol. 2019, pages 1-17, October.
    3. Cristi Spulbar & Elena Loredana Minea, 2022. "Inefficient Stock Markets And Their Implications In The Context Of Extreme Financial Events: A Theoretical Framework," Annals - Economy Series, Constantin Brancusi University, Faculty of Economics, vol. 1, pages 38-41, February.

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