Statistics is considered to be a difficult science since it requires a variety of skills including handling of quantitative data, graphical insights as well as mathematical ability. Yet ever increasing special knowledge of statistics is demanded since data of increasing complexity and size need...

Diese Arbeit untersucht die empirische Relevanz des Monetären Modells fiir die Erklärung des DM / Dollar Wechselkurses. Dabei zeigt sich, daß der in der neueren empirischen Literatur übliche Testansatz (reduced form approach) zu unplausiblen Parameterrestriktionen und zu ineffizienten...

In this paper I consider a complex decision problem where subjects have to cope with a time horizon of uncertain duration and must update their termination probabilities which depend on stochastic events during life. First I describe how economic theory suggests to solve the decision problem....

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 Einführung von...

Agency theory assumes a potential conflict of interest between principal and agent. Principals provide incentives to agents to influence agents' behaviour in the interest of the principal. In practice, incentive systems are dominanted by financial incentives and consist of fixed and performance...

Considering partially linear single-index errors-in-variables model which can be described as Y = n(X T a) + ZT ßo + e when the Z' s are measured with additive errors. The general estimators established in literature are biased when ignoring the measurement errors. We proposed two estimators in...

In this paper, we experimentally investigate the extended game with action commitment of Hamilton and Slutsky (1990). In their duopoly game, firms can choose their quantities in one of two periods before the market clears. If a firm commits to a quantity in period 1 it does not know whether the...