Computing and Visualizing Solution Sets of Interval Linear Systems (2008)
Walter Krämer, Herausgeber Prof, Dr. W. Krämer, Dr. W. Hofschuster, Walter Krämer, Walter Kraemer
The computation of the exact solution set of an interval linear system is a nontrivial task [2, 13]. Even in two and three dimensions a lot of work has to be done. We demonstrate two different...
Hamburg, Univ., Diss., 1970.
Large-Scale Disasters and the Insurance Industry
Walter Kraemer, Sebastian Schich
We investigate the impact of the 20 largest – in terms of insured losses – man-made or natural disasters on various insurance industry stock indices. We show via an event study that insurance...
Long Memory with Markov-Switching GARCH
The paper considers the Markov-Switching GARCH(1,1)-model with time-varying transition probabilities. It derives sufficient conditions for the square of the process to display long memory and...
On Comparing the Accuracy of Default Predictions in the Rating Industry
We consider 1927 borrowers from 54 countries who had a credit rating by both Moody's and S&P at the end of 1998, and their subsequent default history up to the end of 2002. Viewing bond ratings as...
Efficiency, Equity, and Generalized Lorenz Dominance
Christian Kleiber, Walter Kraemer
We decompose the generalized Lorenz order into a size and a distribution component. The former is represented by stochastic dominance, the latter by the standard Lorenz order. We show that it is...