英文标题：
《The double role of GDP in shaping the structure of the International
Trade Network》
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作者：
Assaf Almog, Tiziano Squartini and Diego Garlaschelli
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最新提交年份：
2015
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英文摘要：
The International Trade Network (ITN) is the network formed by trade relationships between world countries. The complex structure of the ITN impacts important economic processes such as globalization, competitiveness, and the propagation of instabilities. Modeling the structure of the ITN in terms of simple macroeconomic quantities is therefore of paramount importance. While traditional macroeconomics has mainly used the Gravity Model to characterize the magnitude of trade volumes, modern network theory has predominantly focused on modeling the topology of the ITN. Combining these two complementary approaches is still an open problem. Here we review these approaches and emphasize the double role played by GDP in empirically determining both the existence and the volume of trade linkages. Moreover, we discuss a unified model that exploits these patterns and uses only the GDP as the relevant macroeconomic factor for reproducing both the topology and the link weights of the ITN.
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中文摘要：
国际贸易网络（ITN）是由世界各国之间的贸易关系构成的网络。ITN的复杂结构影响着重要的经济过程，如全球化、竞争力和不稳定性的传播。因此，根据简单的宏观经济量对ITN的结构进行建模至关重要。虽然传统宏观经济学主要使用引力模型来描述贸易量的大小，但现代网络理论主要侧重于对ITN的拓扑结构进行建模。结合这两种互补的方法仍然是一个悬而未决的问题。在这里，我们回顾这些方法，并强调GDP在经验上决定贸易联系的存在和数量方面所起的双重作用。此外，我们还讨论了一个利用这些模式的统一模型，该模型仅使用GDP作为相关的宏观经济因素来重现ITN的拓扑结构和链接权重。
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分类信息：

一级分类：Quantitative Finance 数量金融学
二级分类：General Finance 一般财务
分类描述：Development of general quantitative methodologies with applications in finance
通用定量方法的发展及其在金融中的应用
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一级分类：Physics 物理学
二级分类：Physics and Society 物理学与社会
分类描述：Structure, dynamics and collective behavior of societies and groups (human or otherwise). Quantitative analysis of social networks and other complex networks. Physics and engineering of infrastructure and systems of broad societal impact (e.g., energy grids, transportation networks).
社会和团体（人类或其他）的结构、动态和集体行为。社会网络和其他复杂网络的定量分析。具有广泛社会影响的基础设施和系统（如能源网、运输网络）的物理和工程。
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