The coronavirus disease 2019(COVID-19)outbreak has been brought under control through a nationwide effort,and now it has become a global pandemic and the situation seems grim.We summarized the measures taken in Wuhan ...The coronavirus disease 2019(COVID-19)outbreak has been brought under control through a nationwide effort,and now it has become a global pandemic and the situation seems grim.We summarized the measures taken in Wuhan and analyzed the effects to comprehensively describe the factors involved in controlling the COVID-19 in China.In China,several measures such as the lockdown of Wuhan,restriction of traffic and communities,increasing hospital beds,nationwide support from medical staff,epidemic prevention equipment and supplies,and establishment of makeshift shelter hospitals have been taken.The lockdown of Wuhan reduced the propagation of cases to other cities in Hubei province and throughout China,traffic and community restrictions reduced the flow of population and the spread of disease,increasing wards and beds and medical personnel reduced the incidence of severe cases and mortality,the establishment of the Fangcang shelter hospitals provided a good isolation and monitoring environment,and further reduced the spread and fatality of the disease.The fact that China was able to control the spread of COVID-19 within three months without a specific drug or vaccine suggests that these measures are more adequate and effective.展开更多
China's exports experienced a rapid recovery after the outbreak of the 2019 COVID-19 pandemic.A primary engine was cross-border e-commerce(CBEC)trade,which bucked the downward export trend during the pandemic.By e...China's exports experienced a rapid recovery after the outbreak of the 2019 COVID-19 pandemic.A primary engine was cross-border e-commerce(CBEC)trade,which bucked the downward export trend during the pandemic.By exploring the variation in the number of CBEC comprehensive pilot zones across provinces,we identified the causal impact of CBEC on exports using monthly province-product-destination data for 2019 and 2020.We found strong and robust evidence that CBEC contributed to exports during the pandemic by promoting the expansion of incumbent exports(intensive margin)rather than through the expansion of product categories and exporting partners(extensive margin).Specifically,higher pandemic risk suppressed the role of CBEC at the intensive margin while enhancing it at the extensive margin.Exports to developed countries benefited more from CBEC,both intensively and extensively.Compared with final products,a larger number of intermediate products were exported through CBEC after the outbreak of the pandemic.展开更多
文摘The coronavirus disease 2019(COVID-19)outbreak has been brought under control through a nationwide effort,and now it has become a global pandemic and the situation seems grim.We summarized the measures taken in Wuhan and analyzed the effects to comprehensively describe the factors involved in controlling the COVID-19 in China.In China,several measures such as the lockdown of Wuhan,restriction of traffic and communities,increasing hospital beds,nationwide support from medical staff,epidemic prevention equipment and supplies,and establishment of makeshift shelter hospitals have been taken.The lockdown of Wuhan reduced the propagation of cases to other cities in Hubei province and throughout China,traffic and community restrictions reduced the flow of population and the spread of disease,increasing wards and beds and medical personnel reduced the incidence of severe cases and mortality,the establishment of the Fangcang shelter hospitals provided a good isolation and monitoring environment,and further reduced the spread and fatality of the disease.The fact that China was able to control the spread of COVID-19 within three months without a specific drug or vaccine suggests that these measures are more adequate and effective.
基金support from the National Natural Science Foundation of China(No.72073095)East China University of Science and Technology's Exploratory Research Fund Project.Yan Zhang gratefully acknowledges support from the Fundamental Research Funds for the Central Universities(No.2023110139)the Shanghai Planning Office of Philosophy and Social Science(No.2023BJB010).
文摘China's exports experienced a rapid recovery after the outbreak of the 2019 COVID-19 pandemic.A primary engine was cross-border e-commerce(CBEC)trade,which bucked the downward export trend during the pandemic.By exploring the variation in the number of CBEC comprehensive pilot zones across provinces,we identified the causal impact of CBEC on exports using monthly province-product-destination data for 2019 and 2020.We found strong and robust evidence that CBEC contributed to exports during the pandemic by promoting the expansion of incumbent exports(intensive margin)rather than through the expansion of product categories and exporting partners(extensive margin).Specifically,higher pandemic risk suppressed the role of CBEC at the intensive margin while enhancing it at the extensive margin.Exports to developed countries benefited more from CBEC,both intensively and extensively.Compared with final products,a larger number of intermediate products were exported through CBEC after the outbreak of the pandemic.
