Machine learning and its numerous variants have meanwhile become established tools in many areas of society. Several attempts have been made to apply machine learning to the prediction of the outcome of professional sports events and to exploit "inefficiencies" in the corresponding betting...

The addition or deletion of companies to/from a stock index has major consequences, with a change in demand from index-tracking investors and funds constituting the most obvious one. Numerous event studies since the 1980s have evidenced the existence of abnormal returns and trading volumes...