The following paper aims to assess investor reaction to mandatory offers on the Warsaw Stock Exchange, which is important because knowledge about these reactions can be used to make better investment decisions. This paper highlights the importance of procedure in making a mandatory offer and its...

The first Global Climate Strike on March 15, 2019 has represented a historical turn in climate activism. We investigate the cross-section of European stock price reactions to this event. Looking at a large sample of European firms, we find that the unanticipated success of this event caused a...

The simple happenstance of the overall stock market being up or down for the day can explain a substantial portion of the abnormal return attached to corporate news announcements. In particular, we demonstrate that firm-specific news announcements that are typically met with a positive stock...

We explore the distinguishing characteristics of firms that completed or stopped their repurchase programs. Our findings help further understanding the economic reasons why firms would stop buybacks. Based on our international sample of 818 completed and 101 stopped share repurchase programs...

We provide some new tools to evaluate trading strategies. When it is known that many strategies and combinations of strategies have been tried, we need to adjust our evaluation method for these multiple tests. Sharpe Ratios and other statistics will be overstated. Our methods are simple to...

I document an abnormal increase in the price of default insurance for target firms at the time of an activist hedge fund intervention, despite an abnormal decrease in expected default losses. After the intervention, credit spreads remain abnormally high for confrontational activist campaigns but...

In this research I study whether stock splits attract market's attention by exploring how investors are trading around event announcement dates. By employing high frequency intraday trading data from NYSE Trades and Quotes (TAQ) database I compute net abnormal buying around split announcements....

We document time varying investor sentiment for corporate social responsibility (“CSR”) performance. We show that announcements of CSR activities generate positive abnormal returns during periods when investors place a valuation premium on CSR performance. In addition, we find that firms...