A review of two decades of correlations, hierarchies, networks and clustering in financial markets

G Marti, F Nielsen, M Bińkowski, P Donnat - Progress in information …, 2021 - Springer
We review the state of the art of clustering financial time series and the study of their
correlations alongside other interaction networks. The aim of the review is to gather in one …

Dynamics of market correlations: Taxonomy and portfolio analysis

JP Onnela, A Chakraborti, K Kaski, J Kertesz, A Kanto - Physical Review E, 2003 - APS
The time dependence of the recently introduced minimum spanning tree description of
correlations between stocks, called the “asset tree” has been studied in order to reflect the …

Correlation structure and evolution of world stock markets: Evidence from Pearson and partial correlation-based networks

GJ Wang, C Xie, HE Stanley - Computational Economics, 2018 - Springer
We construct a Pearson correlation-based network and a partial correlation-based network,
ie, two minimum spanning trees (MST-Pearson and MST-Partial), to analyze the correlation …

Topology of correlation-based minimal spanning trees in real and model markets

G Bonanno, G Caldarelli, F Lillo, RN Mantegna - Physical Review E, 2003 - APS
We compare the topological properties of the minimal spanning tree obtained from a large
group of stocks traded at the New York Stock Exchange during a 12-year trading period with …

A network perspective of the stock market

KT Chi, J Liu, FCM Lau - Journal of Empirical Finance, 2010 - Elsevier
Complex networks are constructed to study correlations between the closing prices for all
US stocks that were traded over two periods of time (from July 2005 to August 2007; and …

Networks of equities in financial markets

G Bonanno, G Caldarelli, F Lillo, S Micciche… - The European Physical …, 2004 - Springer
We review the recent approach of correlation based networks of financial equities. We
investigate portfolio of stocks at different time horizons, financial indices and volatility time …

A network approach to portfolio selection

G Peralta, A Zareei - Journal of Empirical Finance, 2016 - Elsevier
In this study, a financial market is conceived as a network where the securities are nodes
and the links account for returns' correlations. We theoretically prove the negative …

Correlation networks in economics and finance: A review of methodologies and bibliometric analysis

H Esmalifalak, A Moradi‐Motlagh - Journal of Economic …, 2024 - Wiley Online Library
This paper presents an in‐depth review of the methodologies and innovations in the study of
correlation networks in economics and finance. We explore the development of filtering …

Patent keyword network analysis for improving technology development efficiency

J Choi, YS Hwang - Technological Forecasting and Social Change, 2014 - Elsevier
The methods of patent analysis are largely divided into network-based patent analysis and
keyword-based morphological patent analysis. Both methods have their shortcomings …

Asset trees and asset graphs in financial markets

JP Onnela, A Chakraborti, K Kaski, J Kertesz… - Physica …, 2003 - iopscience.iop.org
This paper introduces a new methodology for constructing a network of companies called a
dynamic asset graph. This is similar to the dynamic asset tree studied recently, as both are …