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Title: U.S. stock market interaction network as learned by the Boltzmann machine

Journal Article · · European Physical Journal. B, Condensed Matter and Complex Systems
 [1];  [2];  [3]
  1. KTH Royal Institute of Technology and Stockholm Univ., Stockholm (Sweden)
  2. KTH Royal Institute of Technology and Stockholm Univ., Stockholm (Sweden); The Kavli Institute for Systems Neuroscience (Trondheim)
  3. KTH Royal Institute of Technology and Stockholm Univ., Stockholm (Sweden); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Here, we study historical dynamics of joint equilibrium distribution of stock returns in the U.S. stock market using the Boltzmann distribution model being parametrized by external fields and pairwise couplings. Within Boltzmann learning framework for statistical inference, we analyze historical behavior of the parameters inferred using exact and approximate learning algorithms. Since the model and inference methods require use of binary variables, effect of this mapping of continuous returns to the discrete domain is studied. The presented results show that binarization preserves the correlation structure of the market. Properties of distributions of external fields and couplings as well as the market interaction network and industry sector clustering structure are studied for different historical dates and moving window sizes. We demonstrate that the observed positive heavy tail in distribution of couplings is related to the sparse clustering structure of the market. We also show that discrepancies between the model’s parameters might be used as a precursor of financial instabilities.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC52-06NA25396
OSTI ID:
1258452
Report Number(s):
LA-UR-15-28956; PII: 1814
Journal Information:
European Physical Journal. B, Condensed Matter and Complex Systems, Vol. 88, Issue 12; ISSN 1434-6028
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 17 works
Citation information provided by
Web of Science

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Ordered phase and non-equilibrium fluctuation in stock market text January 2001
Nonequilibrium transitions in complex networks: a model of social interaction text January 2002
Asset trees and asset graphs in financial markets text January 2003
Hierarchical Structure in Financial Markets text January 1998
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Weak pairwise correlations imply strongly correlated network states in a neural population text January 2005

Cited By (4)

Resummed mean-field inference for strongly coupled data journal October 2016
Inverse statistical problems: from the inverse Ising problem to data science journal June 2017
Inverse statistical problems: from the inverse Ising problem to data science text January 2017
Non-criticality of interaction network over system’s crises: A percolation analysis journal November 2017

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