Abstract
Since the coronavirus disease (COVID-19) pandemic started at the beginning of 2020, it has seriously affected various countries’ economic and social development and accelerated the economic recession worldwide. Therefore, the connectedness of the global COVID-19 network across countries is studied in this article. Based on COVID-19 correlations in 122 countries, we construct a complex network of COVID-19 from January 19, 2020, to August 15, 2020. We then deconstruct the overall global network connectedness and analyze the connectedness characteristics. Moreover, we empirically investigate the network connectedness influencing factors by using various countries’ macroeconomic and social data. We find that the global COVID-19 pandemic network has some prominent complex network properties, such as low path length, high clustering, and good community structure. Furthermore, population density, economic size, trade, government spending, and quality of medical treatment are significant macrofactors affecting COVID-19 connectedness in different countries.
Highlights
The COVID-19 global pandemic has changed the world remarkably
The results show that the modularity coefficient is 0.526, and the COVID-19 pandemic network is divided into 10 communities, representing community structures
Based on the growth pattern of the number of COVID-19 infections worldwide, this study constructed a complex network among 122 countries
Summary
The COVID-19 global pandemic has changed the world remarkably. In just a few months, from limited local transmission in several countries, COVID-19 evolved into a multicountry spread and raged in more than 100 countries and regions across five continents. The COVID-19 pandemic has disrupted and changed the lifestyle of millions of people around the world and has had a profound impact on international relations and the economy. At present, increasing attention is being paid to the prevention and control of the COVID-19 pandemic. The pandemic is well under control in some countries, such as China and Germany, but most countries, including the United States, still do not have effective ways to control COVID-19. The fight against the COVID-19 pandemic has become a top priority for governments in many countries and regions, and the public health sector has paid unprecedented attention to protecting people’s lives
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