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samplefraction, in the sense of minimal mean squared error, which is needed for tail index estimation. Unlike previous methodsour … strictlypositive. Hence the current method yields a complete solution to tail index estimation as it is not predicated on a more orless …
Persistent link: https://www.econbiz.de/10010324719
The aim of the paper is to obtain confidence intervals for the tail index and high quantiles taking into account the optimal rate of convergence of the estimator. The common approach to obtaining confidence intervals presented in the literature is to use the normal distribution approximation at...
Persistent link: https://www.econbiz.de/10010325182
In recent publications standard methods of random matrix theory were applied to principal components analysis of high-dimensional financial data. We discuss the fundamental results and potential shortcomings of random matrix theory in the light of the stylized facts of empirical finance....
Persistent link: https://www.econbiz.de/10010298431
therefore allows its application in many diverse fields. Moreover, this theory offers new powerful techniques for the estimation …
Persistent link: https://www.econbiz.de/10010277948
-Gaussian dependency structures with a small number of parameters. In this paper we develop a novel adaptive estimation technique of the …
Persistent link: https://www.econbiz.de/10010270704
We propose new scoring rules based on partial likelihood for assessing the relative out-of-sample predictive accuracy of competing density forecasts over a specific region of interest, such as the left tail in financial risk management. By construction, existing scoring rules based on weighted...
Persistent link: https://www.econbiz.de/10010326053
This paper examines the importance of different economic sentiments, e.g. consumer moods, for the Central and Eastern European countries (CEECs) during the transition process. We first analyze the importance of economic confidence with respect to the CEECs' fi nancial markets. Since the...
Persistent link: https://www.econbiz.de/10010269983
This paper examines the importance of different economic sentiments, e.g. consumer moods, for the Central and Eastern European countries (CEECs) during the transition process. We first analyze the importance of economic confidence with respect to the CEEC's financial markets. Since the...
Persistent link: https://www.econbiz.de/10010271117
In this paper we test for (Generalized) AutoRegressive Conditional Heteroskedasticity [(G)ARCH] in daily data on 22 exchange rates and 13 stock market indices using the standard Lagrange Multiplier [LM] test for GARCH and a LM test that is resistant to patches of additive outliers. The data span...
Persistent link: https://www.econbiz.de/10010324601
Persistent link: https://www.econbiz.de/10014306488