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Assessing the discriminatory power of credit scores
Kraft, Holger; Kroisandt, Gerald; Müller, Marlene - 2002
We discuss how to assess the performance for credit scores under the assumption that for credit data only a part of the defaults and nondefaults is observed. The paper introduces a criterion that is based on the difference of the score distributions under default and nondefault. We show how to...
Persistent link: https://www.econbiz.de/10009626674
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A bootstrap test for single index models
Härdle, Wolfgang; Mammen, Enno; Proença, Isabel - 2000
Single index models are frequently used in econometrics and biometrics. Logit and Probit models are special cases with … ; kernel estimate ; single index model ; specification test …
Persistent link: https://www.econbiz.de/10009583431
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Convex measures of risk and trading constraints
Föllmer, Hans; Schied, Alexander - 2001
We introduce the notion of a convex measure of risk, an extension of the concept of a coherent risk measure defined in Artzner et aL (1999), and we prove a corresponding extension of the representation theorem in terms of probability measures on the underlying space of scenarios. As a case...
Persistent link: https://www.econbiz.de/10009615426
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Coherent risk measures, valuation bounds, and (my,p)-portfolio optimization
Jaschke, Stefan R.; Küchler, Uwe - 1999
This paper presents a general theory that works out the relation between coherent risk measures, valuation bounds, and … theory presented seems to fill a gap between arbitrage valuation on the one hand and single agent utility maximization or … full-fledged equilibrium theory on the other hand. "Coherent" valuation bounds strike a balance in that the bounds can be …
Persistent link: https://www.econbiz.de/10009581108
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Distribution-invariant dynamic risk measures
Weber, Stefan (contributor) - 2003 - [Elektronische Ressource], rev
Persistent link: https://www.econbiz.de/10001917139
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Measurement error, biases, and the validation of complex models
Carroll, Raymond J.; Galindo, Christian D. - 1997
exposure with error. 2. The effects of measurement error vary from study-to-study. It is dangerous to take measurement error …There are three major points to this article: 1. Measurement error causes biases in regression fits. The line one would … obtain if one could accurately measure exposure to environmental lead media will differ in important ways when one measures …
Persistent link: https://www.econbiz.de/10009631751
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Quantile hedging
Föllmer, Hans; Leukert, Peter - 1998
In a complete financial market every contingent claim can be hedged perfectly. In an incomplete market it is possible to stay on the safe side by superhedging. But such strategies may require a large amount of initial capital. Here we study the question what an investor can do who is unwilling...
Persistent link: https://www.econbiz.de/10009574876
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On model based seasonal adjustment procedures
Breitung, Jörg - 1998
In this note the unobserved component approach underlying the software package SEATS is compared with the Beveridge-Nelson type of decomposition for seasonal time series. The main strength of the SEATS approach lies in the appealing model formulation and the careful specification and adjustment...
Persistent link: https://www.econbiz.de/10009574877
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The monetary model of the exchange rate : a structural interpretation
Moersch, Mathias; Nautz, Dieter - 1998
We emphasize the importance of properly identifying the long-run relations underlying the monetary model of the exchange rate. The separate estimation of long-run money demands leads to a "structural" error correction equation which allows an interpretation of the various channels affecting the...
Persistent link: https://www.econbiz.de/10009574885
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Sequential versus independent commitment : an indirect evolutionary analysis of bargaining rules
Güth, Werner - 1998 - Rev.
Rational bargaining behavior depends crucially on the rules of bargaining, especially on whether parties decide sequentially or independently. Whereas in ultimatum bargaining the proposer can exploit the responder, independent commitments result in more balanced payoffs. To limit the scope of...
Persistent link: https://www.econbiz.de/10009574886