Despite growing attention to cyber risks in research and practice, quantitative cyber risk assessments remain limited, mainly due to a lack of reliable data. This analysis leverages sparse historical data to quantify the financial impact of cyber incidents at the enterprise level. For this...

Data breaches continue to plague most industries but especially the healthcare sector. While previous studies have aimed at assessing the financial implications arising from data breaches, none of them focused on the healthcare sector. This study of market reactions following data breaches fills...

This study analyzes the wealth effects of SEO announcements in the US during the COVID-19 pandemic and its main determinants. We find significantly negative abnormal returns of − 8.6%. This provides persuasive evidence that capital markets reacted particularly negative during this period,...

Vor dem Hintergrund einer hochdynamischen Entwicklung weltweiter Cybervorfälle und der stetig wachsenden Bedeutung der Cyberforschung untersucht dieser Beitrag anhand einer systematischen und strukturierten Inhaltsanalyse die in der Wissenschaft und praxisnahen Literatur postulierten...

Kursänderungen auf Aktienmärkten können informationsinduziert durch neu zu verarbeitende Informationen oder liquiditätsinduziert durch kurzfristige Angebots- bzw. Nachfrageüberhänge auftreten. Diese zwei so unterschiedlich verursachten Kursreaktionen sind in empirischen Untersuchungen nur...

This study analyzes mergers and acquisitions (M&A) payment methods in large transactions of public U.S. acquirers between 2009 and 2016. While we find consistent with previous evidence that asymmetric information between acquirers and targets significantly influences the choice of M&A payment...

The home bias like the disposition effect is a well-researched economic phenomenon in investor behaviour which has been examined in finance journal articles for decades. While there is little doubt about the existence of the bias, its magnitude varies across countries and investor groups. The...

Bond issues often result in negative revaluations of the market value of equity. These market reactions are usually explained by negative signals and asymmetric information about the use of the proceeds. In industries with rather transparent investment opportunities these arguments are not...