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A large number of exact inferential procedures in statistics and econometrics involve the sampling distribution of ratios of random variables. If the denominator variable is positive, then tail probabilities of the ratio can be expressed as those of a suitably defined difference of random...
Persistent link: https://www.econbiz.de/10010227300
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
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 con dence intervals and bands. We demonstrate the …
Persistent link: https://www.econbiz.de/10010195959
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
functionals of kernel-type estimators (1 < p < ∞) and is easy to implement in general, mainly due to its recourse to the bootstrap … method. The bootstrap procedure is based on nonparametric bootstrap applied to kernel-based test statistics, with estimated … "contact sets". We provide regularity conditions under which the bootstrap test is asymptotically valid uniformly over a large …
Persistent link: https://www.econbiz.de/10010254852
discrepancy between the IV smiles for levered and unlevered ETF options. We construct bootstrap uniform confidence bands which …
Persistent link: https://www.econbiz.de/10011437891
semiparametric efficient estimate of the unknown distribution function of the data. One-step, two-step and bootstrap empirical … bootstrap methods improve upon this result. …
Persistent link: https://www.econbiz.de/10011543558
distribution depend on unknown nuisance parameters. A bootstrap method is used to obtain more reliable inference. The regularized …
Persistent link: https://www.econbiz.de/10011547613
Persistent link: https://www.econbiz.de/10011453628
theta_n, its bootstrap approximation, and the Bayesian posterior for all agree asymptotically. It is shown that whenever g … is Lipschitz, though not necessarily differentiable, the posterior distribution of g(theta) and the bootstrap … distribution of g(theta_n) coincide asymptotically. One implication is that Bayesians can interpret bootstrap inference for g …
Persistent link: https://www.econbiz.de/10011459005