Skewness of local logarithmic exports.
Sung-Gook Choi,Deok-Sun Lee +1 more
TLDR
In this article, the authors consider the exporter-importer network and the expor-product network with links weighted by the logarithm of the corresponding export values each year from 1962 to 2018, and study how the weights of the outgoing links from each country are distributed.Abstract:
The distributions of trade values and relationships among countries and product categories reflect how countries select their trade partners and design export portfolios. Here we consider the exporter-importer network and the exporter-product network with links weighted by the logarithm of the corresponding export values each year from 1962 to 2018, and study how the weights of the outgoing links from each country are distributed. Such local logarithmic export distributions by destinations and products are found to follow approximately the Gaussian distribution across exporters and time, implying random assignment of export values on a logarithmic scale. However, a nonzero skewness is identified, changing from positive to negative as exporters have more partner importers and more product categories in their portfolios. Seeking the origin, we analyze how local exports depend on the out-degree of the exporter and the in-degrees of destinations or products and formulate their quantitative and measurable relation incorporating randomness, which uncovers the fundamental nature of the export strategies of individual countries.read more
Citations
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Structure of international trade hypergraphs
Sudo Yi,Deok-Sun Lee +1 more
TL;DR: The structure of the international trade hypergraph consisting of triangular hyperedges representing the exporter–importer–product relationship is studied and the power of the hypergraph approach in the study of real-world complex systems is demonstrated and a theoretical framework is offered.
References
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The Product Space Conditions the Development of Nations
César A. Hidalgo,César A. Hidalgo,Bailey Klinger,Bailey Klinger,Albert-László Barabási,Albert-László Barabási,Ricardo Hausmann,Ricardo Hausmann +7 more
TL;DR: This study studies this network of relatedness between products, or “product space,” finding that more-sophisticated products are located in a densely connected core whereas less-sophile products occupy a less-connected periphery.
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The building blocks of economic complexity
TL;DR: It is shown that it is possible to quantify the complexity of a country's economy by characterizing the structure of this bipartite network in which countries are connected to the products they export, and that deviations from this relationship are predictive of future growth.
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The Variety and Quality of a Nation's Exports
David Hummels,Peter J. Klenow +1 more
TL;DR: The authors found that the extensive margin accounts for around 60 percent of the greater exports of larger economies and that richer countries export higher quantities at modestly higher prices, while small economies export more in absolute terms than do small economies.
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World Trade Flows: 1962-2000
TL;DR: In this paper, the authors present a set of bilateral trade data by commodity for 1962-2000, which is available from www.nber.org/data (International Trade Data, NBER-UN world trade data).
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