News on the stock market contains positive or negative sentiments depending on whether the information provided is favorable or unfavorable to the stock market. This study aims to discover news sentiments and classify news according to its sentiments with the application of PhoBERT, a Natural...

Examining stock price crash risk in emerging economies is important since emerging equity markets are characterized by excessive volatility and weak corporate governance. This paper investigates the relationship between foreign ownership and crash risk using a data sample of firms listed on the...

Vietnamese stock market is considered immature and unstable as the outside influence of economy and the weakness of market system. Herding behavior tends to exist in emerging market with lack in transparency, efficient information and macro financial management. Therefore, this research is...

This paper investigates herd behavior in frontier Vietnamese stock markets under the impacts of COVID-19. Using models with two measures of return dispersions, we find that herd behavior does not exist in the three stock markets in extreme movements but in normal market conditions. Herding is...