We suggest an experimental design that can help opening the black box of investor behavior by documenting a channel of how biases affect portfolio performance. We study two of the most important investor biases (overreaction and overconfidence), show how they are related, and analyze their...

We study the degree of individual and aggregate market overreaction in a dynamic experimental auction market. In 13 sessions with overall 101 students we find overreaction to new information both in stock price forecasts and transaction prices. Interestingly, market forces do not seem to help in...

Our study analyzes the determinants of investors' risk taking behavior. We find that investors' risk taking behavior is affected by their subjective risk attitude and by the risk and return of an investment alternative. Our results also suggest that consistent with previous findings in the...

Between September08 and June09, a period with significant market events, we surveyed UK online-brokerage customers at three-months intervals for their willingness to take risk, three-months expectations of returns and risks for the market and their own portfolio, and self-reported risk attitude....

Unter dem Besitztumseffekt wird die Tatsache verstanden, daß Entscheider Alternativen bezüglich eines Referenzpunktes beurteilen und dabei Verluste stärker gewichten als Gewinne. Diese unterschiedliche Beurteilung spiegelt sich auch in einer starken Diskrepanz zwischen Kauf- und Verkaufspreis...

This paper examines how capital is determined by German banks. We analyse whether the determinants found in the previous empirical literature hold for the special German banking sector with its three characteristic banking groups of savings banks, cooperative banks and other banks. On the basis...

The savings banks? decision to distribute profits among their public owners is strongly regulated by law in order to guarantee their adequate funding via retained profits. However, the legal scope is reluctantly exhausted. In this study we examine the determinants of the savings banks? payout...

In this study the firms' choice of the number of bank relationships is analyzed with respect to influential factors like borrower quality, size and the existence of a close housebank relationship. Then, the number of bank relationships is used as a proxy to examine if bank competition is...

This paper discusses the role of internal corporate ratings as a means by which commercial banks condense their informational advantage and preserve it vis-à-vis a competitive lending market. In drawing on a unique data set collected from leading universal banks in Germany, we are able to...