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Area of Science:

  • Physics
  • Finance
  • Complex Systems

Background:

  • Colloidal dynamics and financial markets exhibit complex behaviors.
  • Understanding fluctuation distributions is key in both fields.
  • Previous research has not extensively linked these two domains.

Purpose of the Study:

  • To investigate the symmetry between colloidal dynamics and Euro-U.S. dollar (EURUSD) exchange rate market dynamics.
  • To determine if physical system models can describe financial market fluctuations.
  • To analyze the mean-squared price displacement (MSPD) and correlation functions of EURUSD.

Main Methods:

  • Analysis of EURUSD price data from 2001-2015.
  • Comparison of fluctuation distributions with colloidal particle models in supercooled/arrested states.
  • Calculation of mean-squared price displacement (MSPD) and price correlation functions.
  • Application of theoretical models for arrested physical systems.

Main Results:

  • Significant qualitative symmetry found between EURUSD fluctuation distributions and colloidal dynamics.
  • Models for arrested physical systems effectively describe EURUSD fluctuation distributions.
  • A two-step MSPD observed during specific intraday periods, especially around the New York Stock Exchange market close, mirroring supercooled systems.
  • Price correlation functions and non-Gaussian parameters support the analogy.

Conclusions:

  • The dynamics of the EURUSD exchange rate market exhibit remarkable similarities to colloidal systems.
  • Physical models for arrested and supercooled states offer a valid framework for analyzing financial market fluctuations.
  • The observed symmetry provides new insights into the underlying mechanisms driving financial market behavior.