Differences in Capital Market Network Structures under COVID-19

G. Kiss, Mercédesz Mészáros, Dóra Sallai
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Abstract

Abstract This paper analyses the structural changes of the underlying stock and currency markets as well as the industrial productions by using a minimum spanning tree graph on a Central and East European sample. The aim is to point out the similarities and differences of the COVID-19 pandemic compared to previous recessions, namely the Dot-com crisis in the early 2000s and the Subprime crisis around 2008. Focusing on the incidence, closeness, and betweenness properties of the graph, we are looking for the emergence of a shock-propagating hub. We identify such a hub during the Subprime crisis but not during the COVID-19 pandemic, which points to the higher efficiency of the economic policy to absorb the worst effects of the crisis.
新冠肺炎背景下资本市场网络结构的差异
摘要本文以中欧和东欧为样本,利用最小生成树图分析了基础股票和货币市场以及工业生产的结构变化。其目的是指出新冠疫情与之前的经济衰退(即21世纪初的互联网危机和2008年左右的次贷危机)的异同。关注图的关联、紧密性和中间性,我们正在寻找一个冲击波传播中心的出现。我们在次贷危机期间发现了这样一个中心,但在COVID-19大流行期间没有发现,这表明吸收危机最严重影响的经济政策效率更高。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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