We examine the long-term relationship between signals derived from nine years of unstructured social media microblog text data and financial market developments in five major economic regions. Employing statistical language modeling techniques we construct directional sentiment metrics and link...

This study investigates whether contagious infectious diseases affect stock market outcomes. As a natural experiment, we use panel data analysis to test the effect of the COVID-19 virus, which is a contagious infectious disease, on the Chinese stock market. The findings indicate that both the...

With a sample of ninety events (announcement and ex-date) using the event study methodology with the market model, we provide evidence for the impacts of the corporate announcements on stock returns during the pandemic stress. We find that all the corporate announcements do not impact the stock...

The closing call auction is an important feature of modern markets that improves the efficiency of closing prices as a benchmark. We examine the effects of COVID-19 on closing price dislocation – with a specific focus on the role of high-frequency and retail traders on closing price...

This paper identifies robust determinants of US stock price movements in the economic shadow of the COVID-19 crisis and in the presence of model uncertainty, using several influential factors highlighted in relevant research. Our investigation performs an extreme bounds analysis (EBA), a global...

The Covid-19 crisis put pressure on governments to design immediate support packages for alleviating the negative economic consequences for households and businesses. In this paper, we examine the stock market's reactions to the announcements of each of the four support packages designed by the...

We examine how monetary policy of the Federal Reserve System, COVID-19 mortality cases, and vaccinations are associated with the US stock market volatility during the pandemic period. Using the wavelet coherence analysis, we first find that there is a positive relationship between the volatility...

We introduce a new measure of activity of financial markets that provides a direct access to their level of endogeneity. This measure quantifies how much of price changes are due to endogenous feedback processes, as opposed to exogenous news. For this, we calibrate the self-excited conditional...

We utilize the respective information share and common factor component weight approaches of Hasbrouck (1995) and Gonzalo and Granger (1995) to examine price discovery competition between the VIX and VIX futures. Our results show that VIX futures prices play a dominant role in the overall...