From the viewpoint of the independence axiom of expected utility theory, an interesting empirical dynamic choice problem involves the presence of a global risk , that is, a chance of losing everything whichever safe or risky option is chosen. In this experimental study, participants have to...

The paper analyzes a very stylized model of crises and demonstrates how the degree of strategic complementarity in the actions of investors is a critical determinant of fragility. It is shown how the balance sheet composition of a financial intermediary, parameters of the information structure...

Applying the framework of conditional event studies shows that equity issues reveal managers' private information about stock mispricing, which investors only partially discount into stock prices at the seasoned equity offering (SEO) announcement date. Negative abnormal returns occur as prices...

This paper examines a continuous-time intertemporal consumption and portfolio choice problem for an ambiguity-averse investor with multiple priors when the expected return of a risky asset is unobservable and follows a hidden Markov chain. The investor's beliefs over investment opportunities are...

Existing empirical evidence is inconclusive on whether professional investors show sophisticated behavior or not, a question which is at the heart of market efficiency. This ambiguous evidence is mostly based on trading data or laboratory evidence, which each has its limitations. We complement...

Die Dissertation befasst sich mit der praktischen Umsetzung der Behavioral-Finance-Theorie im Bereich des Asset Managements. Hierzu werden zunächst die wesentlichen verhaltensorientierten Anlagestrategien gemäß Fachliteratur identifiziert. Auf Basis von Regressionsansätzen wird anschließend...

In recent years high-frequency finance has become one of the most active research fields in finance and economics. The wide-spread availability of high-frequency datasets has particularly spurred research within this field and has, in turn, given birth to the rapidly expanding bridge between...

Investors' return expectations are pivotal in stock markets, but the reasoning behind these expectations remains a black box for economists. This paper sheds light on economic agents' mental models - their subjective understanding - of the stock market, drawing on surveys with the US general...

This scientific working paper explains the influence of four selected cognitive biases regarding the investment behaviour of German private shareholders. In detail, it contains a theoretical treatment, as well as an empirical impact study of these four biases. Starting with the definition of...