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The availability of big data recorded from massively multiplayer online role-playing games (MMORPGs) allows us to gain a deeper understanding of the potential connection between individuals' network positions and their economic outputs. We…

物理与社会 · 物理学 2017-06-16 Wen-Jie Xie , Yan-Hong Yang , Ming-Xia Li , Zhi-Qiang Jiang , Wei-Xing Zhou

For Adam Smith, wealth was related to the division of labor. As people and firms specialize in different activities, economic efficiency increases, suggesting that development is associated with an increase in the number of individual…

综合金融 · 定量金融 2009-09-23 Cesar A. Hidalgo , Ricardo Hausmann

How are economic activities linked to geographic locations? To answer this question, we use a data-driven approach that builds on the information about location, ownership and economic activities of the world's 3,000 largest firms and their…

物理与社会 · 物理学 2015-12-10 Antonios Garas , Celine Rozenblat , Frank Schweitzer

International collaboration has become imperative in the field of AI. However, few studies exist concerning how distance factors have affected the international collaboration in AI research. In this study, we investigate this problem by…

计算机与社会 · 计算机科学 2021-12-03 Xuli Tang , Xin Li , Feicheng Ma

Academic migration is the change of host institution by a researcher, typically aimed at achieving a stronger research profile. Scientific features such as the number of collaborations, the productivity and its research impact tend to be…

数字图书馆 · 计算机科学 2021-10-13 Pavlos Paraskevopoulos , Chiara Boldrini , Andrea Passarella , Marco Conti

To achieve inclusive green growth, countries need to consider a multiplicity of economic, social, and environmental factors. These are often captured by metrics of economic complexity derived from the geography of trade, thus missing key…

综合经济学 · 经济学 2024-07-25 Viktor Stojkoski , Philipp Koch , César A. Hidalgo

In this paper, we analyse the impact of international migration on the food consumption and dietary diversity of left-behind households. Using the Kerala migration survey 2011, we study whether households with emigrants (on account of…

综合经济学 · 经济学 2025-10-20 Pooja Batra , Ajay Sharma

In this paper we characterize the performance of venture capital-backed firms based on their ability to attract investment. The aim of the study is to identify relevant predictors of success built from the network structure of firms' and…

Large scale traffic networks are an indispensable part of contemporary human mobility and international trade. Networks of airport travel or cargo ships movements are invaluable for the understanding of human mobility…

物理与社会 · 物理学 2013-03-18 Marko Popović , Hrvoje Štefančić , Vinko Zlatić

Globalization is one of the central concepts of our age. The common perception of the process is that, due to declining communication and transport costs, distance becomes less and less important. However, the distance coefficient in the…

物理与社会 · 物理学 2014-12-17 Mariusz Karpiarz , Piotr Fronczak , Agata Fronczak

Recent studies have shown that a system composed from several randomly interdependent networks is extremely vulnerable to random failure. However, real interdependent networks are usually not randomly interdependent, rather a pair of…

数据分析、统计与概率 · 物理学 2015-05-20 Roni Parshani , Celine Rozenblat , Daniele Ietri , Cesar Ducruet , Shlomo Havlin

We show how bad and good volatility propagate through forex markets, i.e., we provide evidence for asymmetric volatility connectedness on forex markets. Using high-frequency, intra-day data of the most actively traded currencies over 2007 -…

综合金融 · 定量金融 2016-07-28 Jozef Barunik , Evzen Kocenda , Lukas Vacha

A large body of literature in economics and political science examines the impact of democracy and political freedoms on various outcomes using cross-country comparisons. This paper explores the possibility that any positive impact of…

综合经济学 · 经济学 2024-08-12 Ziho Park

The movements of individuals within and among cities influence critical aspects of our society, such as well-being, the spreading of epidemics, and the quality of the environment. When information about mobility flows is not available for a…

机器学习 · 计算机科学 2022-05-02 Filippo Simini , Gianni Barlacchi , Massimiliano Luca , Luca Pappalardo

This paper aims to estimate the impact of economic and financial crises on the unemployment rate in the European Union, taking also into consideration the institutional specificities, since unemployment was the main channel through which…

综合经济学 · 经济学 2020-07-24 Ionut Jianu

This study introduces the Digital Competitiveness Index for Trade (DCIT), a composite metric integrating ICT readiness, broadband adoption, GDP per capita, foreign direct investment, government effectiveness, and trade volume to assess…

综合经济学 · 经济学 2026-01-06 Elias Aravantinos

Among the realistic ingredients to be considered in the computational modeling of infectious diseases, human mobility represents a crucial challenge both on the theoretical side and in view of the limited availability of empirical data. In…

物理与社会 · 物理学 2010-02-04 Duygu Balcan , Vittoria Colizza , Bruno Goncalves , Hao Hu , Jose J. Ramasco , Alessandro Vespignani

The mobility of scientists between different universities and countries is important to foster knowledge exchange. At the same time, the potential mobility is restricted by geographic and institutional constraints, which leads to temporal…

社会与信息网络 · 计算机科学 2021-06-30 Giacomo Vaccario , Luca Verginer , Frank Schweitzer

We consider two applications where we study how dependence structure between many variables is linked to external network data. We first study the interplay between social media connectedness and the co-evolution of the COVID-19 pandemic…

应用统计 · 统计学 2023-11-14 Jack Jewson , Li Li , Laura Battaglia , Stephen Hansen , David Rossell , Piotr Zwiernik

We provide an overview of the relationship between financial networks and systemic risk. We present a taxonomy of different types of systemic risk, differentiating between direct externalities between financial organizations (e.g.,…

风险管理 · 定量金融 2020-12-24 Matthew O. Jackson , Agathe Pernoud