We develop a model of illiquidity transmission from spot to futures markets that formalizes the derivative hedge theory of Cho and Engle (1999). The model shows that spot market illiquidity does not translate one to one to the futures market but, rather, interacts with price risk, liquidity...

Derivatives strategies that aim to earn variance risk premiums are exposed to sharp price declines during market crises, calling into question their suitability for the longterm investor. Our paper defines, analyzes, and proposes potential solutions to three problems (payoff, leverage and finite...

In this paper, we apply Markowitz's approach of portfolio selection to government bond portfolios. As a main feature of our analysis, we use term structure models to estimate expected returns, return variances, and covariances of different bonds. Our empirical study for the German market shows...

In this paper we empirically analyze the permanent price impact of trades by investigating the relation between unexpected net order flow and price changes. We use intraday data on German index futures. Our analysis based on a neural network model suggests that the assumption of a linear impact...

Im Laufe des Jahres 1993 war die Metallgesellschaft Refining & Marketing (MGRM), eine US-amerikanische Tochtergesellschaft der Metallgesellschaft AG, in großem Umfang die Verpflichtung eingegangen, langfristig Öl zu Festpreisen zu liefern. Das dadurch entstehende Preisrisiko sollte über...

In this paper we apply statistical inference techniques to build neural network models which are able to explain the prices of call options written on the German stock index DAX. By testing for the explanatory power of several input variables serving as network inputs, some insight into the...

In this article we examine how model selection in neural networks can be guided by statistical procedures such as hypotheses tests, information criteria and cross validation. The application of these methods in neural network models is discussed, paying attention especially to the identification...

Diese Arbeit vergleicht verschiedene Verfahren zur Nachbildung von Aktienindizes. Eine solche Nachbildung stellt ein wichtiges Problem sowohl im passiven Portfoliomanagement als auch bei der Ausführung von Index-Arbitrage dar. Es werden unterschiedliche Kriterien abgeleitet, nach denen sich...

Die vorliegende Studie untersucht den Zusammenhang zwischen Arbitragetätigkeit und Preisführerschaft eines Marktes anhand Kursänderungen des DAX und des DAX-Futures. Dem Gleichgewichtsmodell von Garbade/Silber (1983) folgend wird der Einfluß (imperfekter) Arbitragetätigkeit auf die...