ABSTRACT
Based on a broad definition of the digital economy, this study constructs a digital technology capital measure-ment framework and measures China's digital technology capital services from 2002 to 2018 to illustrate the growth of digital technology. In addition, the relationship between digital technology and economic growth is examined using the growth accounting method and econometric panel models from the perspective of the substitution and penetration effects of information and communication technologies. The measurement results show that China's digital technology capital services grew faster than non-digital ones from 2002 to 2018. In terms of the substitution effect, the contribution of traditional capital to economic growth is diminishing, whereas digital technology capital's contribution is expanding. Regarding the penetration effect, the contribution of digital technology capital to labor productivity is gradually overtaking that of traditional capital, with the impact varying by sector. These results may provide developing countries with a strategy to seek new devel-opment drivers and sustain economic growth in the post-pandemic era.
ABSTRACT
The growing use of social media leads to a growing public engagement with professional questions and issues. During the period of Covid-19 pandemic, a large number of non-expert people participate in the discussion on the virus and official intervention process. These people are more likely to be influenced by Covid-19 disinformation and lose their trust in government. As one of the first countries suffered from Covid-19, China has been faced with this serious "infodemic". In this context, government agencies in China adopted the four-stages strategies (immediate response, diagnosis, reforming interventions and evaluation) on social media to weaken the impact of disinformation and repair public trust. Based on the structural equation model (SEM), this study constructs a research model to statistically test the roles of the four-stages strategies on public trust repair in China. The findings reveal that each media strategy shows positive impact on citizens' perception of their government. From the lesson in China, it is suggested that government agencies need constantly cooperate with a wide range of social organizations to ensure the greater voice on social media. Also, it is necessary to regularize the four-stage strategies on social media as a whole system to mitigate the spread of disinformation and improve public attitudes toward government.
ABSTRACT
Objective: To investigate the epidemiological characteristics and transmission chain of COVID-19 in two families, and to provide scientific evidence for effective prevention and control measures. Methods: Field epidemiological investigation was conducted for the COVID-19 cases occurred in two families and the close contacts in a county of Baotou city in Inner Mongolia Autonomous Region. Descriptive statistical analysis on epidemiological data was conducted. Results: The infection source of the COVID-19 cases in the two families was a man who had living history in Wuhan. After his return, his parents were infected by him. A few days later, the members of a neighbor family were found to be infected, and relatives of this family were also infected after dining together repeatedly. Finally, ten confirmed cases and three suspected cases of COVID-19 were detected in the two families. Conclusions: Human-to-human transmission of COVID-19 can occur not only in a family but also in neighborhoods. The cases in two families had close relationship, indicating the necessity to strengthen the health education about COVID-19 prevention and control and the management of groups at high risk to reduce the incidence of COVID-19 in families and neighborhoods.