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原文連結
論文資訊
- 類型：已發表論文
- 日期：2022-08-03
摘要
Remarkably little is known about the structure, formation, and dynamics of supply- and production 網絡s that form one foundation of society. Neither the 韌性 of these 網絡s is known, nor do we have ways to systematically monitor their ongoing change. Systemic risk contributions of individual companies were hitherto not quantifiable since data on supply 網絡s on the firm-level do not exist with the exception of a very few countries. Here we use telecommunication meta data to reconstruct nationwide firm-level supply 網絡s in almost real-time. We find the probability of observing a supply-link, given the existence of a strong communication-link between two companies, to be about 90%. The so reconstructed supply 網絡s allow us to reliably quantify the systemic risk of individual companies and thus obtain
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