Should two-band income taxes be progressive given a general income distribution? Weprovide a negative answer under utilitarian and max-min welfare functions. While this resultclarifies some ambiguities in the literature, it does not rule out progressive taxes in general. Ifwe maximize total or...

Data sets from car insurance companies often have a high-dimensional complex dependency structure. The use of classical statistical methods such as generalized linear models or Tweedie?s compound Poisson model can yield problems in this case. Christmann (2004) proposed a general approach to...

Vor dem Hintergrund der weiter wachsenden Bedeutung der Volksrepublik China in der Weltwirtschaft beschäftigt sich die Arbeit mit dem dortigen Schutz von Patenten. Das chinesische Patentsystem entspricht dem internationalen Standard des TRIPS-Übereinkommens. Die Analyse von Patentanmeldungen...