Max Lay und Andreas Peichl, ifo Institut, schätzen die Budgetwirkungen der Entlastungspakete über die drei Jahre auf 130 Mrd. Euro oder auf 3,6% in Relation zum Bruttoinlandsprodukt im Jahr 2021. Dies sei eher die Untergrenze. Zudem gingen die Versuche des Staates, die Bevölkerung in der...

We analyze the memory in volatility by studying volatility return intervals, defined as the time between two consecutive fluctuations larger than a given threshold, in time periods following stock market crashes. Such an aftercrash period is characterized by the Omori law, which describes the...

We analyse large stock price changes of more than five standard deviations for (i) TAQ data for the year 1997 and (ii) order book data from the Island ECN for the year 2002. We argue that a large trading volume alone is not a sufficient explanation for large price changes. Instead, we find that...