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In this paper we develop a methodology to analyze and compare multiple global networks. We focus our analysis on the relation between human migration and trade. First, we identify the subset of products for which the presence of a community…

Physics and Society · Physics 2015-02-24 Paolo Sgrignoli , Rodolfo Metulini , Stefano Schiavo , Massimo Riccaboni

We study the ever more integrated and ever more unbalanced trade relationships between European countries. To better capture the complexity of economic networks, we propose two global measures that assess the trade integration and the trade…

Physics and Society · Physics 2014-03-05 Gautier M. Krings , Jean-François Carpantier , Jean-Charles Delvenne

Devising strategies for economic development in a globally competitive landscape requires a solid and unbiased understanding of countries technological advancements and similarities among export products. Both can be addressed through the…

Physics and Society · Physics 2017-09-01 Mika J. Straka , Guido Caldarelli , Fabio Saracco

We present a model of worldwide crisis contagion based on the Google matrix analysis of the world trade network obtained from the UN Comtrade database. The fraction of bankrupted countries exhibits an \textit{on-off} phase transition…

Trading and Market Microstructure · Quantitative Finance 2020-09-22 Célestin Coquidé , José Lages , Dima L. Shepelyansky

Development of efficient business process models and determination of their characteristic properties are subject of intense interdisciplinary research. Here, we consider a business process model as a directed graph. Its nodes correspond to…

Computers and Society · Computer Science 2011-12-30 M. Abel , D. L. Shepelyansky

This paper investigates the evolving dynamics of international trade, emphasizing the strategic interplay between competition and cooperation within the global trade network. It argues that competitive advantages - rather than traditional…

General Economics · Economics 2025-11-25 Xingwei Hu

Nestedness has traditionally been used to detect assembly patterns in meta-communities and networks of interacting species. Attempts have also been made to uncover nested structures in international trade, typically represented as bipartite…

Economy, and consequently trade, is a fundamental part of human social organization which, until now, has not been studied within the network modelling framework. Networks are mathematical tools used in the modelling of a wide variety of…

Disordered Systems and Neural Networks · Physics 2009-11-10 M. Angeles Serrano , Marian Boguna

Bilateral trade relationships in the international level between pairs of countries in the world give rise to the notion of the International Trade Network (ITN). This network has attracted the attention of network researchers as it serves…

General Finance · Quantitative Finance 2015-05-13 K. Bhattacharya , G. Mukherjee , S. S. Manna

Rare earth elements (REEs) are critical to a wide range of clean and high-tech applications, yet global trade dependencies expose countries to vulnerabilities across production networks. Here, we construct a multi-tiered input-output trade…

General Economics · Economics 2025-08-04 Peter Klimek , Sophia Baum , Markus Gerschberger , Maximilian Hess

In recent decades, trade between nations has constituted an important component of global Gross Domestic Product (GDP), with official estimates showing that it likely accounted for a quarter of total global production. While evidence of…

General Economics · Economics 2022-11-24 Mayank Kejriwal , Yuesheng Luo

We introduce an algorithm able to reconstruct the relevant network structure on which the time evolution of country-product bipartite networks takes place. The significant links are obtained by selecting the largest values of the projected…

Economics · Quantitative Finance 2014-12-24 Andrea Zaccaria , Matthieu Cristelli , Andrea Tacchella , Luciano Pietronero

In this note we study the bilateral merchandise trade flows between 186 countries over the 1948-2005 period using data from the International Monetary Fund. We use Pajek to identify network structure and behavior across thresholds and over…

General Finance · Quantitative Finance 2009-11-13 Irena Tzekina , Karan Danthi , Daniel N. Rockmore

International food trade is a growing complement to gaps in domestic food supply and demand, but it is vulnerable to disruptions due to some unforeseen shocks. This paper assembles the international crop trade networks using maize, rice,…

Physics and Society · Physics 2023-06-21 Yin-Ting Zhang , Wei-Xing Zhou

Here, we present the World Trade Atlas 1870-2013, a collection of annual world trade maps in which distance combines economic size and the different dimensions that affect international trade beyond mere geography. Trade distances, which…

Physics and Society · Physics 2016-05-11 Guillermo García-Pérez , Marián Boguñá , Antoine Allard , M. Ángeles Serrano

Globalization has rapidly advanced but exposed countries to supply chain disruptions, highlighted by the COVID-19 pandemic. This study exhaustively analyzes bilateral export data for 186 countries from 2018, 2020, and 2022, using…

Applications · Statistics 2024-09-20 Juan Sosa , Andrés Felipe Arévalo-Arévalo , Juan Pablo Torres-Clavijo

International trade has been increasingly organized in the form of global value chains (GVCs) where different stages of production are located in different countries. This recent phenomenon has substantial consequences for both trade policy…

Physics and Society · Physics 2019-02-20 Zhen Zhu , Greg Morrison , Michelangelo Puliga , Alessandro Chessa , Massimo Riccaboni

For DNA sequences of various species we construct the Google matrix G of Markov transitions between nearby words composed of several letters. The statistical distribution of matrix elements of this matrix is shown to be described by a power…

Genomics · Quantitative Biology 2013-05-23 Vivek Kandiah , Dima L. Shepelyansky

We present an empirical analysis of the network formed by the trade relationships between all world countries, or World Trade Web (WTW). Each (directed) link is weighted by the amount of wealth flowing between two countries, and each…

Physics and Society · Physics 2009-02-06 D. Garlaschelli , T. Di Matteo , T. Aste , G. Caldarelli , M. I. Loffredo

We apply the approach of the Google matrix, used in computer science and World Wide Web, to description of properties of neuronal networks. The Google matrix ${\bf G}$ is constructed on the basis of neuronal network of a brain model…

Disordered Systems and Neural Networks · Physics 2010-07-12 D. L. Shepelyansky , O. V. Zhirov