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In dieser Arbeit setzen wir uns mit den Auswirkungen von Risikobeschränkungen auf das optimale Verhalten eines Investors auseinander, welcher versucht, den erwarteten Endnutzen zu einem festgelegten Zeitpunkt zu maximieren. Dazu kann er ein vorgegebenes Anfangsvermögen in einem Markt...
Persistent link: https://www.econbiz.de/10009462193
Asymptotic expansions for the null distribution of thelogrank statistic and its distribution under local proportionalhazards alternatives are developed in the case of iid observations.The results, which are derived from the work of Gu (1992) andTaniguchi (1992), are easy to interpret, and...
Persistent link: https://www.econbiz.de/10009477088
retaining the multiplicative hazard rate form of the absolutely continuous model. Application of martingale arguments to the … martingale arguments. This estimator reduces to the usual hypergeometric form in the special case of testing equality of several …
Persistent link: https://www.econbiz.de/10009477091
In the dissertation, we study the statistical evaluation of treatment comparisons by evaluating the relative comparison of survival experiences between two treatment groups. We construct confidence interval and simultaneous confidence bands for the ratio and odds ratio of two survival functions...
Persistent link: https://www.econbiz.de/10009463366
Decision trees, representing the backward recursive dynamic programming approach, are often not flexible enough to analyze real world decision problems in a risky environment. The crux is the modeling of risk. Stochastic simulation, in contrast, is a very powerful and flexible modeling tool for...
Persistent link: https://www.econbiz.de/10009467075
Es ist bekannt, dass analytische Lösungsverfahren bzw. die Binomialmethode bei schwierigen Optionsbewertungsproblemen nicht gangbar oder zumindest sehr aufwändig sind. In diesem Beitrag wird eine effiziente und gleichzeitig intuitive Vorgehensweise skizziert, die durch die Kombination von...
Persistent link: https://www.econbiz.de/10009467076
The thesis consists of two essays: "The CAPM -- A General Equilibrium Foundation" and "The Foreign Exchange Rate in Financial Markets".The Capital Asset Pricing Model (CAPM) is one of the most successful models for portfolio selection. The utility functions are assumed to depend positively on...
Persistent link: https://www.econbiz.de/10009452580