经济网络的复杂性、集中性和脆弱性
Complexity, Centralization, and Fragility in Economic Networks
摘要：
各国通过贸易网络分销其产品，贸易网络是全球化世界经济的重要组成部分。由于买卖货物的国家的不同特点，它们的结构在不同产品之间有很大的差异。通过使用来自网络科学和产品复杂性理论的各种指标，我们定量地证实了这样一种直觉，即总体而言，复杂性较高的产品--即，具有更大的技术含量和组件数量-通过更集中的网络进行交易-即，少数国家集中了大部分出口流量。由于中心化网络是众所周知的更脆弱，我们认为，目前的生产和贸易的组成是与最复杂的-因此战略-产品的高度脆弱性。
英文摘要：
Trade networks, across which countries distribute their products, are crucial components of the globalized world economy. Their structure is strongly heterogeneous across products, given the different features of the countries which buy and sell goods. By using a diversified pool of indicators from network science and product complexity theory, we quantitatively confirm the intuition that, overall, products with higher complexity -- i.e., with larger technological content and number of components -- are traded through a more centralized network -- i.e., with a small number of countries concentrating most of the export flow. Since centralized networks are known to be more vulnerable, we argue that the current composition of production and trading is associated to high fragility at the level of the most complex -- thus strategic -- products.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
