Purpose – This paper empirically investigates the structural evolution of the US financial systems. It particularly aims to explore if the structure of the financial systems changes when the economy enters a recession. Design/methodology/approach – The empirical analysis is conducted through...

Taking the rural economic indicator data in 17 cities (regions) of Hubei Province in 2009 as samples, this paper establishes evaluation index system of rural economic development in Hubei Province, uses factor analysis method for analysis, and draws out four factors. The conclusion is objective...

According to the 2008 Statistics Bulletin of the National Economic and Social Development of Hubei Province, factor analysis method is used to study on the development of county economy in Hubei Province. Result shows that there are great differences in the economic development and the...

A general approach to measure statistical uncertainty of different filtration techniques for market network analysis is proposed. Two measures of statistical uncertainty are introduced and discussed. One is based on conditional risk for multiple decision statistical procedures and another one is...

The correlation matrix of stocks returns is used in order to create maps of the São Paulo Stock Exchange (BM&F-Bovespa), Brazil's main stock exchange. The data refer to the year 2010, and the correlations between stock returns lead to the construction of a minimum spanning tree and of asset...

This paper analyzes the evolution characteristics of the international natural gas trade structure and the integration of the international natural gas market by using complex network theory. It is found that both the LNG and pipeline gas import and export trade networks display scale-free...

We analyze the evolving price °uctuations by using ultrametric distance of minimally spanning ¯nancial tree of stocks traded in Jakarta Stock Exchange 2000-2004. Ultrametricity is derived from transformation of correlation coe±cients into the distances among stocks. Our analysis evaluates the...

Minimum spanning trees and planar maximally filtered graphs are generated from correlations between the 300 most-capitalized NYSE stocks' daily returns, computed dynamically over moving windows of sizes between 1 and 12 months, in the period from 2001 to 2003. We study how different economic...

We investigated the grouping coefficients of industrial sectors in the stock network based on stock data for the U.S. and Korean stock markets. These complex networks were modeled using the minimal spanning tree (MST) method. We propose a novel approach based on the shortest path length (SPL)...