Purpose: This study examines the impact of firm-specific information and macroeconomic variables on market overreaction of US and Chinese winner and loser portfolio before and during COVID-19. Design/methodology/approach: The firm-specific information includes firm size, volume, volatility,...

The research of porous carbon materials with high surface area is an important method to improving their specific capacitance. However, the misfitting distribution of micropore/mesopore leads to serious recession under high current densities. Herein, we report multiple joint methods to...