In urban areas around the world, increasing motorization and growing travel demand make the urban transportation sector an ever-greater contributor to local air pollution and greenhouse gas emissions. The situation is particularly acute in developing countries, where growing metropolitan regions...

In both uni- and multi-variable analyses, we found that education attainment (proportion of population who had attained college degree or above in a state) is associate with the crude growth rate of COVID confirmed cases in the United States

The COVID-19 outbreak on the Diamond Princess ship has caused over 600 (still increasing) cases as of February 19, 2020. By using the growing process model, we demonstrated that this Diamond Princess cruise outbreak implies a short serial interval of COVID-19. Hence, timely contact tracing and...

Major cities in China and many other fast-growing economies are expanding their subway systems in order to address worsening air pollution and traffic congestion. This paper quantifies the impact of subway expansion on air quality by leveraging fine-scale air quality data and the rapid build-out...

In urban areas around the world, increasing motorization and growing travel demand make the urban transportation sector an ever-greater contributor to local air pollution and greenhouse gas emissions. The situation is particularly acute in developing countries, where growing metropolitan regions...

This paper studies the impact of typhoon strikes on the fiscal implications using county-level data in China. In China, the local government stands at the first line and is the main power to allocate the resources to prevent and react to regular disaster shocks, experiencing fiscal pressure. A...