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An extended single-index model is considered when responses are missing at random. A three-step estimation procedure is developed to define an estimator for the single index parameter vector by a joint estimating equation. The proposed estimator is shown to be asymptotically normal. An iterative...
Persistent link: https://www.econbiz.de/10010734529
Confidence intervals and joint confidence sets are constructed for the nonparametric calibration of exponential Lévy models based on prices of European options. This is done by showing joint asymptotic normality for the estimation of the volatility, the drift, the intensity and the Lévy...
Persistent link: https://www.econbiz.de/10009651905
We consider theoretical bootstrap \coupling" techniques for nonparametric robust smoothers and quantile regression, and … verify the bootstrap improvement. To cope with curse of dimensionality, a variant of \coupling" bootstrap techniques are …. Our bootstrap method can be used in many situations like constructing condence intervals and bands. We demonstrate the …
Persistent link: https://www.econbiz.de/10010701762
coverage for small sample sizes, a simple bootstrap procedure is designed based on the leading term of the Bahadur … demonstrated that the bootstrap procedure considerably outperforms the asymptotic bands in terms of coverage accuracy. Finally, the … bootstrap confidence corridors are used to study the efficacy of the National Supported Work Demonstration, which is a …
Persistent link: https://www.econbiz.de/10010772306
In vector autoregressive analysis confidence intervals for individual impulse responses are typically reported to indicate the sampling uncertainty in the estimation results. A range of methods are reviewed and a new proposal is made for constructing joint confidence bands, given a prespecifed...
Persistent link: https://www.econbiz.de/10010662713
News carry information of market moves. The gargantuan plethora of opinions, facts and tweets on financial business offers the opportunity to test and analyze the influence of such text sources on future directions of stocks. It also creates though the necessity to distill via statistical...
Persistent link: https://www.econbiz.de/10011186258
, as an alternative to the asymptotic approach, we propose a bootstrap confidence band. The developed theory is helpful for …
Persistent link: https://www.econbiz.de/10008476278
. The method is based on the bootstrap, where resampling is done from a suitably estimated empirical density function (edf … distribution is logarithmically slow. It is proved that the bootstrap approximation provides a substantial improvement. The case of …
Persistent link: https://www.econbiz.de/10008476279
In this paper we analyse bootstrap procedures for systems cointegration tests with a prior adjustment for deterministic … the bootstrap test procedures are derived and their small sample properties are studied. The simulation study also …
Persistent link: https://www.econbiz.de/10005207940
confirmed in a simulation study. We summarize serial correlation robust test procedures and propose a bootstrap approach. By …
Persistent link: https://www.econbiz.de/10005652761