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In jüngerer Zeit ist die Deutsche Bahn AG erneut verstärkt in die Diskussion geraten. Hat sich die Umwandlung der Deutschen Bundesbahn vor knapp fünf Jahren in ein eigenverantwortliches Unternehmen, dessen öffentliche Aufgaben und gemeinwirtschaftliche Leistungen vom Staat finanziert werden,...
Persistent link: https://www.econbiz.de/10010301627
Persistent link: https://www.econbiz.de/10011467042
We review recent progress in modeling credit risk for correlated assets. We employ a new interpretation of the Wishart model for random correlation matrices to model non-stationary effects. We then use the Merton model in which default events and losses are derived from the asset values at...
Persistent link: https://www.econbiz.de/10011996600
The stability of the financial system is associated with systemic risk factors such as the concurrent default of numerous small obligors. Hence, it is of utmost importance to study the mutual dependence of losses for different creditors in the case of large, overlapping credit portfolios. We...
Persistent link: https://www.econbiz.de/10011996630