Internet-based information sharing among different partners of the valuechain enables collaborative business. Beyond, applying ambient technologiesprovides new opportunities for gathering information ubiquitously fromvarious sources including physical objects, e.g. the movement of goods orcars,...

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...

Various empirical studies have shown that the time-varying volatility of asset returns can be described by GARCH (generalised autoregressive conditional heteroskedasticity) models. The corresponding GARCH option pricing model of Duan (1995) is capable of depicting the smile-effect which often...

Das Optionspreismodell von Black/Scholes hat sich zum Industrie-Standard für die Bewertung von Aktienoptionen entwickelt. In diesem Modell wird die Annahme einer konstanten Volatilität der Kursveränderungen getroffen. Der Befund zahlreicher empirischer Untersuchungen, dass sich Volatilität...

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...