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Early warning systems for financial markets of emerging economies

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  • Artem Kraevskiy
  • Artem Prokhorov
  • Evgeniy Sokolovskiy

Abstract

We develop and apply a new online early warning system (EWS) for what is known in machine learning as concept drift, in economics as a regime shift and in statistics as a change point. The system goes beyond linearity assumed in many conventional methods, and is robust to heavy tails and tail-dependence in the data, making it particularly suitable for emerging markets. The key component is an effective change-point detection mechanism for conditional entropy of the data, rather than for a particular indicator of interest. Combined with recent advances in machine learning methods for high-dimensional random forests, the mechanism is capable of finding significant shifts in information transfer between interdependent time series when traditional methods fail. We explore when this happens using simulations and we provide illustrations by applying the method to Uzbekistan's commodity and equity markets as well as to Russia's equity market in 2021-2023.

Suggested Citation

  • Artem Kraevskiy & Artem Prokhorov & Evgeniy Sokolovskiy, 2024. "Early warning systems for financial markets of emerging economies," Papers 2404.03319, arXiv.org.
  • Handle: RePEc:arx:papers:2404.03319
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    References listed on IDEAS

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    1. Smimou, K. & Khallouli, W., 2015. "Does the Euro affect the dynamic relation between stock market liquidity and the business cycle?," Emerging Markets Review, Elsevier, vol. 25(C), pages 125-153.
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