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...

A theory is developed that explains how the stock market can crash inthe absence of news about fundamentals, and why crashes are more commonthan frenzies. A crash occurs via the interaction of rational and naive investors.Naive traders believe in a simple (but reasonable) statistical modelof...

Das vorliegende Papier verfolgt, den empirischen Zusammenhang zwischen den realen Aktienmarktniveaus von Deutschland und den USA zur Aktienmarktprognose zu verwenden ...

This paper analyzes optimal portfolio choice and consumption with stochastic volatility in incomplete markets.

This paper examines the determinants of stock returns in a small open economy using an APT framework. The analysis is conducted for the Swiss stock market which has the particularity of including a large proportion of firms that are exposed to foreign economic conditions.

A large part of the current debate on US stock price behaviorconcentrates on the question of whether stock prices are driven byfundamentals or by non-fundamental factors(...)

This paper shows that in financial markets with endogenous asset supply and demand, both rational and noise traders do coexist in the long run. The finding implies that financial markets are neither informationally nor allocationally efficient. While rational traders have a consistently higher...

In this paper the relation between aggregate mutual fund flows and stock market returns isanalysed with respect to three issues. First, we study the relation between fund flows andlong-term realized returns (past, current and future). Second, we find out that fund flows arenot driven by...

This paper serves two purposes. First, we introduce a new data set on the German stock marketwhich is publicly available to all researchers. It comprises factor returns (a market factor, asize factor, a book-to-market factor, and a momentum factor) as well as returns of portfolioswhich are...

This paper investigates whether investor sentiment can explain stock returns on theGerman stock market. Based on a principal component analysis, we construct a senti-ment indicator that condenses information of several well-known sentiment proxies. Weshow that this indicator explains the return...