We propose a new approach to measuring the effect of unobservable private information or beliefs on volatility. Using high-frequency intraday data, we estimate the volatility effect of a well identified shock on the volatility of the stock returns of large European banks as a function of the...

Das vorliegende Dissertationsprojekt gibt Einblicke in Unternehmensrestrukturierungen und identifiziert Leistungstreiber von Equity Carve-Out (ECO) und Spin-off. Ziel der Dissertation ist es, zu verifizieren, ob ECO- und Spin-off-Transaktionen Unternehmenswert schaffen und zu evaluieren, ob die...

Eugene Fama in his “Efficient Market Hypothesis” introduced the term newspaper-article-event. The aim of this paper is to find out if newspaper-article-events which are presented and discussed in newspaper articles and which could collage to create an atmosphere of investment, together with...