论文标题
COVID-19对国际贸易的影响
COVID-19 impact on the international trade
论文作者
论文摘要
使用联合国COMTRADE数据库，我们对2018 - 2020年的多生物世界贸易网络（WTN）进行了Google矩阵分析，包括Covid-19作为全球大流行的出现。应用算法 - Pagerank，Cheirank和Dished Google Matrix - 考虑到与常规进出口分析相比，WTN链接的多重性提供了有关国际贸易的新见解。这些算法建立了国家和产品的新排名和贸易余额，以平等的理由，独立于其财富以及每种产品的基础上，根据其相对交换的数量来考虑每个国家。与前期前期相比，2020年发生这些指标的重大变化，强调了Covid-19-19大流行危机引起的国际贸易流动的重新布线。我们定义了一种新的Pagerank-Cheirank产品贸易平衡，无论是出口还是以进口为导向，这对大流行都显着扰动。
Using the United Nations Comtrade database, we perform the Google matrix analysis of the multiproduct World Trade Network (WTN) for the years 2018-2020 comprising the emergence of the COVID-19 as a global pandemic. The applied algorithms -- the PageRank, the CheiRank and the reduced Google matrix -- take into account the multiplicity of the WTN links providing new insights on the international trade comparing to the usual import-export analysis. These algorithms establish new rankings and trade balances of countries and products considering every countries on equal grounds, independently of their wealth, and every products on the basis of their relative exchanged volumes. In comparison with the pre-COVID-19 period, significant changes in these metrics occur for the year 2020 highlighting a major rewiring of the international trade flows induced by the COVID-19 pandemic crisis. We define a new PageRank-CheiRank product trade balance, either export or import oriented, which is significantly perturbed by the pandemic.
