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literature. First, a numerically more stable objective function for the estimation of the risk neutral density is derived whose … integrals can be solved analytically. Second, it is reasoned that the originally proposed approach for the estimation of the PoD …
Persistent link: https://www.econbiz.de/10010294741
Accurate credit-granting decisions are crucial to the efficiency of the decentralized capital allocation mechanisms in modern market economies. Credit bureaus and many financial institutions have developed and used credit-scoring models to standardize and automate, to the extent possible, credit...
Persistent link: https://www.econbiz.de/10010292074
In the literature, there is no consensus as to which Value-at-Risk forecasting model is the best for measuring market risk in banks. In the study an analysis of Value-at-Risk forecasting model quality over varying economic stability periods for main indices from stock exchanges was conducted....
Persistent link: https://www.econbiz.de/10012011844
-shock models used in reliability theory. An obvious implication of this finding pertains to the analysis of operational risk. The …
Persistent link: https://www.econbiz.de/10010298397
kernel smoothing of the conditional mean function. An asymptotic theory for the resulting kernel estimator is developed and …
Persistent link: https://www.econbiz.de/10011422182
Density forecasts have become quite important in economics and finance. For example, such forecasts play a central role in modern financial risk management techniques like Value at Risk. This paper suggests a regression based density forecast evaluation framework as a simple alternative to other...
Persistent link: https://www.econbiz.de/10010295725
We suggest a robust form of conditional moment test as a constructive test for functional misspecification in multiplicative error models. The proposed test has power solely against violations of the conditional mean restriction but is not affected by any other type of model misspecification....
Persistent link: https://www.econbiz.de/10010263752
The empirical joint distribution of return-pairs on stock indices displays high tail-dependence in the lower tail and low tail-dependence in the upper tail. The presence of tail-dependence is not compatible with the assumption of (conditional) joint normality. The presence of asymmetric-tail...
Persistent link: https://www.econbiz.de/10010292792
Using daily return data from the four major Central and Eastern European stock markets including fourteen highly liquid stocks and ATX (Vienna), PX (Prague), BUX (Budapest), and WIG20 (Warsaw) market indices, we model the value-at-risk using a set of univariate GARCH-type models. Our results...
Persistent link: https://www.econbiz.de/10010322212
Tests of causality in variance in multiple time series have been proposed recently, based on residuals of estimated univariate models. Although such tests are applied frequently little is known about their power properties. In this paper we show that a convenient alternative to residual based...
Persistent link: https://www.econbiz.de/10010296228