The success of new scientific areas can be assessed by their potential in contributing to new
theoretical approaches and in applications to real-world problems. Complex networks have …

This article and the companion paper aim at reviewing recent empirical and theoretical
developments usually grouped under the term Econophysics. Since the name was coined in …

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 …

Using the eigenvalues and eigenvectors of correlations matrices of some of the main
financial market indices in the world, we show that high volatility of markets is directly linked …

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 …

We live in a computerized and networked society where many of our actions leave a digital
trace and affect other people's actions. This has lead to the emergence of a new data-driven …

Networks of companies can be constructed by using return correlations. A crucial issue in
this approach is to select the relevant correlations from the correlation matrix. In order to …

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 …

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 …

How does the productive structure of countries' changes over time? In this paper we explore
this question by combining techniques of networks science with 42 years of trade data and …