Background In China, public medical insurance has expanded rapidly in the past 20 years. Many studies have discussed the benefts of medical insurance in improving residents' health and fnancial stability, and increasing the utilization of medical services. Less attention is paid to the efect of...

In this paper, we revisit price and volatility transmission among natural gas, fertilizer, and corn markets; an important issue was explored in previous work. An update of the results is urgently needed due to the recent enormous price volatility in the commodities, fertilizer, and energy...

This study regards project management as a system, four types of disturbances caused by technological innovation and adaptive behaviors of management system are proposed based on the "structure-function" two-dimensional model. Resilience is introduced into mega transportation infrastructure...