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A CEEMDAN-Based Entropy Approach Measuring Multiscale Information Flow between Macroeconomic Conditions and Stock Returns of BRICS

Author

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  • Emmanuel Asafo-Adjei
  • Anokye Mohammed Adam
  • Peterson Owusu Junior
  • Patrick Kwashie Akorsu
  • Clement Lamboi Arthur
  • A. Dionisio

Abstract

We model a mixture of asymmetric and nonlinear bidirectional and unidirectional causality between four macroeconomic variables (exchange rate, GDP, global economic policy uncertainty, and relative CPI) and stock returns of BRICS economies in the frequency-domain using the information flow theory. The Complete Ensemble Empirical Mode Decomposition with Adaptive Noise (CEEMDAN)-based Rényi effective transfer entropy approach is used to establish dynamic flow of information between macroeconomic variables and stock returns of BRICS. The original return series suggested insignificant information flow between most macroeconomic variables and stock returns. However, we reveal both asymmetric and tail dependent analyses at diverse scales between macroeconomic variables and stock returns of BRICS economies. Moreover, we find negative significant flow of information between the variables, in that knowing the history of one variable (either stock or macroeconomic variable), in this case, indicates considerably more uncertainty than knowing the history of only the other variable (either stock or macroeconomic variable). We also observe that global economic policy uncertainty has the most significant adverse causal relationship with stock returns of BRICS, especially in the long term. These results have important implications that investors and policymakers should take into account. Regulators should consider instituting sound policy actions geared towards minimising long-term effects of external shocks and uncertainties.

Suggested Citation

  • Emmanuel Asafo-Adjei & Anokye Mohammed Adam & Peterson Owusu Junior & Patrick Kwashie Akorsu & Clement Lamboi Arthur & A. Dionisio, 2022. "A CEEMDAN-Based Entropy Approach Measuring Multiscale Information Flow between Macroeconomic Conditions and Stock Returns of BRICS," Complexity, Hindawi, vol. 2022, pages 1-24, August.
  • Handle: RePEc:hin:complx:7871109
    DOI: 10.1155/2022/7871109
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