Abstract Companies in business and industry often make very different demands on statistical software packages, like flexibility concerning customized solutions, possibility of integrating non-standard stochastic approaches, use to validated applications, user-friendly interface, moderate costs,...

Zusammenfassung Die Analyse von täglichen Änderungen der deutschen Umlaufsrendite für festverzinsliche Wertpapiere der öffentlichen Hand zeigt starke Evidenz für eine zeitliche Abhängigkeit in den Varianzen für die Periode Januar 1981 - Juli 1996. Der untersuchte Zeitraum umfaßt die...

In this paper, we examine the characteristics of market opening news and its impact on the estimated coefficients of the conditional volatility models of the GARCH class. We find that the differences between the opening price of one day and the closing price of the day before have different...