Three scientists win the Nobel Prize in Economics 2021
David Card, Joshua Angrist and Guido Imbens were awarded for their empirical research in labor economics and methodology in causality.
David Card, Joshua Angrist and Guido Imbens were awarded for their empirical research in labor economics and methodology in causality.
It is difficult to determine the source of F0 infection, the new strain of nCoV in Da Nang spreads quickly, and many medical staff are infected, which are three challenges in the current Covid-19 wave.
Ho Chi Minh City After arriving at Khanh Hoi port, three Metro No. 1 cars were one by one hoisted onto super-long trucks to prepare for transport to the depot in District 9.