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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

Based on the approach of flow distances, the international trade flow system is studied from the perspective of multi-layer flow network. A model of multi-layer flow network is proposed for modelling and analyzing multiple types of flows in…

Physics and Society · Physics 2015-11-20 Bin Shen , Jiang Zhang , Qiuhua Zheng

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

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

Political power in the international context can be characterized as a fluid-like substance that circulates through a network of nation states. States can possess it as a stock quantity, reflected by their material capacity or national…

Social and Information Networks · Computer Science 2022-09-15 Michael Poulshock

Transportation networks play a crucial role in human mobility, the exchange of goods, and the spread of invasive species. With 90% of world trade carried by sea, the global network of merchant ships provides one of the most important modes…

Physics and Society · Physics 2019-11-12 Pablo Kaluza , Andrea Kölzsch , Michael T. Gastner , Bernd Blasius

This study investigates the inherently random structures of dry bulk shipping networks, often likened to a taxi service, and identifies the underlying trade dynamics that contribute to this randomness within individual cargo sub-networks.…

Mathematical Finance · Quantitative Finance 2025-02-04 Yan Li , Carol Alexander , Michael Coulon , Istvan Kiss

Optimal allocation of agricultural water in the event of droughts is an important global problem. In addressing this problem, many aspects, including the welfare of farmers, the economy, and the environment, must be considered. Under this…

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…

In recent years, the increased urbanization and industrialization has led to a rising water demand and resources, thus increasing the gap between demand and supply. Proper water distribution and forecasting of water consumption are key…

Machine Learning · Computer Science 2023-04-03 Ioannis Kontopoulos , Antonios Makris , Konstantinos Tserpes , Theodora Varvarigou

The topology of many real complex networks has been conjectured to be embedded in hidden metric spaces, where distances between nodes encode their likelihood of being connected. Besides of providing a natural geometrical interpretation of…

Physics and Society · Physics 2017-01-23 Antoine Allard , M. Ángeles Serrano , Guillermo García-Pérez , Marián Boguñá

Much of the analysis of economic growth has focused on the study of aggregate output. Here, we deviate from this tradition and look instead at the structure of output embodied in the network connecting countries to the products that they…

General Finance · Quantitative Finance 2012-03-02 Ricardo Hausmann , Cesar A. Hidalgo

International trade research plays an important role to inform trade policy and shed light on wider issues relating to poverty, development, migration, productivity, and economy. With recent advances in information technology, global and…

Econometrics · Economics 2019-01-04 Elynn Y. Chen , Rong Chen

The goal of international trade theories is to explain the exchange of goods and services between different countries, aiming to benefit from it. Albeit the idea is very simple and known since ancient history, smart policy and business…

General Finance · Quantitative Finance 2017-07-31 Roberto De Luca , Marco Di Mauro , Angelo Falzarano , Adele Naddeo

Research on methods for planning and controlling water distribution networks gains increasing relevance as the availability of drinking water will decrease as a consequence of climate change. So far, the majority of approaches is based on…

Throughout economic history, the global economy has experienced recurring crises. The persistent recurrence of such economic crises calls for an understanding of their generic features rather than treating them as singular events. The…

Statistical Finance · Quantitative Finance 2011-04-14 Kyu-Min Lee , Jae-Suk Yang , Gunn Kim , Jaesung Lee , Kwang-Il Goh , In-mook Kim

Recent results from statistical physics show that large classes of complex networks, both man-made and of natural origin, are characterized by high clustering properties yet strikingly short path lengths between pairs of nodes. This class…

Information Theory · Computer Science 2016-11-17 Rui A. Costa , Joao Barros

Maritime shipping is a backbone of international trade and, thus, the world economy. Cargo-loaded vessels travel from one country's port to another via an underlying port-to-port transport network, contributing to international trade values…

Social and Information Networks · Computer Science 2020-10-26 Mengqiao Xu , Qian Pan , Haoxiang Xia , Naoki Masuda

Water markets represent a policy tool that aims at finding efficient water allocations among competing users by promoting reallocations from low-value to high-value uses. In Canada, water markets have been discussed and implemented at the…

General Economics · Economics 2023-10-02 Jorge Garcia-Hernandez , Roy Brouwer

Allocation of dynamically-arriving (i.e., online) divisible resources among a set of offline agents is a fundamental problem, with applications to online marketplaces, scheduling, portfolio selection, signal processing, and many other…

Data Structures and Algorithms · Computer Science 2026-03-31 Siddhartha Banerjee , Ramiro N. Deo-Campo Vuong , Robert Kleinberg