Showing 1 - 10 of 48
We use a subsample bootstrap method to get a consistent estimate of the asymptotically optimal choice of the …
Persistent link: https://www.econbiz.de/10010232860
-generation process, the least-squares estimators have smaller bias (in fact zero bias) but larger variances in the long regression than … in the short regression. But if the long regression is also misspecified, the bias may not be smaller. We provide bias …
Persistent link: https://www.econbiz.de/10010532602
Estimators of the extreme-value index are based on a set of upper order statistics. We present an adaptivemethod to choose the number of order statistics involved in an optimal way, balancing variance and biascomponents. Recently this has been achieved for the similar but somewhat less involved...
Persistent link: https://www.econbiz.de/10010342310
Approximation formulae are developed for the bias of ordinary andgeneralized Least Squares Dummy Variable (LSDV … proper modelling of thedisturbance covariance structure is indispensable. The biasapproximations are used to construct bias … plausible long-run effects are obtained by the biascorrected estimators. Moreover, bias correction can be substantialunderlining …
Persistent link: https://www.econbiz.de/10011313930
, but then a bias term with unknown sign has to be estimated. We provide an estimator for this sign and the full programme …. Simulation results are also presented.It is weIl known that extreme value parameter estimators which balance the asymptotic bias …
Persistent link: https://www.econbiz.de/10011338009
Using a limiting approach to portfolio credit risk, we obtain analyticexpressions for the tail behavior of the distribution of credit losses. We showthat in many cases of practical interest the distribution of these losses haspolynomial ('fat') rather than exponential ('thin') tails. Our...
Persistent link: https://www.econbiz.de/10011316891
We develop a general framework for measuring biases in expectation formation. The method is based on the insight that biases can be inferred from the response of forecast errors to past news. Empirically, biases are measured by flexibly estimating the impulse response function of forecast...
Persistent link: https://www.econbiz.de/10011869992
We advocate the use of absolute moment ratio statistics in conjunctionwith standard variance ratio statistics in order to disentangle lineardependence, non-linear dependence, and leptokurtosis in financial timeseries. Both statistics are computed for multiple return horizonssimultaneously, and...
Persistent link: https://www.econbiz.de/10011299968
determined with a permutation procedure and a parametric bootstrap in the testsfor serial independence and linearity …
Persistent link: https://www.econbiz.de/10011317443
different bootstrap tests. In the context of static linear regression modelstwo of these are shown to have serious size and …
Persistent link: https://www.econbiz.de/10011325661