Humboldt-Universität zu Berlin | Wirtschaftswissenschaftliche Fakultät | High Dimensional Nonstationary Time Series | About us | News Feed | News 2017 | Seminar: Prof. Härdle at the European Central Bank Seminar: Prof. Härdle at the European Central Bank 19.06.2017. Prof. Wolfgang Härdle, the IRTG coordinator and spokesperson, held a seminar at the European Central Bank on „Tail Event Driven Networks of SIFIs". 26.06.2017