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Due to the non-normality of stock returns, nonparametric rank tests are gaining accceptance relative to parametric tests in financial economics event studies. In rank tests, financial assets’ multiple day cumulative abnormal returns (CARs) are replaced by cumulated ranks. This paper proposes...
Persistent link: https://www.econbiz.de/10013168738
The interdependence between multiple lines of business has an important impact on determining loss reserves and risk capital, which are crucial for the solvency of a property and casualty (P&C) insurance company. In this work, we introduce the two-stage inference method using the Sarmanov family...
Persistent link: https://www.econbiz.de/10014435614
In Konzentrationsanalysen wird neben der Ermittlung eines globalen Konzentrationsmaßes für einen relevanten Markt mit Hilfe von Dominanzmaßen ein oligopolistischer Kern abgegrenzt. Diese Dominanzmaße stehen im Mittelpunkt dieser Arbeit. Es wird untersucht, welche Anforderungen an diese Maße...
Persistent link: https://www.econbiz.de/10011924684
Die Disparitätsmessung hat in den letzten Jahrzehnten als Forschungsgegenstand und Anwendungsgebiet der Statistik eine ständig wachsende Bedeutung erlangt. Die bekanntesten Instrumente der klassischen Disparitätsmessung sind die Lorenzkurve und der Gini-Koeffizient. In der Arbeit wird...
Persistent link: https://www.econbiz.de/10011926891
amount of possible covariates and economic theory offers insufficient guidance on how to select the appropriate subset. In …
Persistent link: https://www.econbiz.de/10012551228
This paper focuses on the Bayesian model average (BMA) using the power-expected-posterior prior in objective Bayesian variable selection under normal linear models. We derive a BMA point estimate of a predicted value, and present computation and evaluation strategies of the prediction accuracy....
Persistent link: https://www.econbiz.de/10012265506
analysis and reliability theory. Sometimes it is very difficult to compute moments of such distributions due to various reasons …
Persistent link: https://www.econbiz.de/10012183576
We discuss aspects of numerical methods for the computation of Gerber-Shiu or discounted penalty-functions in renewal risk models. We take an analytical point of view and link this function to a partial-integro-differential equation and propose a numerical method for its solution. We show weak...
Persistent link: https://www.econbiz.de/10012203784
Persistent link: https://www.econbiz.de/10013419441
, where the metric on probability measures is taken as a Wasserstein metric arising from optimal transport theory. Design …
Persistent link: https://www.econbiz.de/10014497027