Showing 121 - 130 of 122,531
models that are characterized as the solution of a linear inverse problem. By using a Gaussian process prior distribution we … propose the posterior mean as an estimator and prove frequentist consistency of the posterior distribution. The latter … distribution can be obtained provided that either the regularity of the prior matches the regularity of the true parameter or the …
Persistent link: https://www.econbiz.de/10010699932
This paper discusses the solution of nonlinear integral equations with noisy integral kernels as they appear in nonparametric instrumental regression. We propose a regularized Newton-type iteration and establish convergence and convergence rate results. A particular emphasis is on instrumental...
Persistent link: https://www.econbiz.de/10010730122
distribution approximation and high order expansions, this paper shows that the fixed-b asymptotic approximation provides a higher … uses an F-distribution as the reference distribution. Finally, the paper develops a bandwidth selection rule that is …
Persistent link: https://www.econbiz.de/10010730135
We introduce the realized co-range, utilizing intraday high-low price ranges to estimate asset return covariances. Using simulations we find that for plausible levels of bid-ask bounce and infrequent and non-synchronous trading the realized co-range improves upon the realized covariance, which...
Persistent link: https://www.econbiz.de/10010731850
This paper establishes conditions for consistency and potentially non-standard rates of convergence for set estimators based on contour sets of criterion functions. These conditions cover the standard parametric rate $n^{-1/2}$, non-standard polynomial rates such as $n^{-1/3}$, and an extreme...
Persistent link: https://www.econbiz.de/10010732329
Complex phenomena in environmental sciences can be conveniently represented by several inter-dependent random variables. In order to describe such situations, copula-based models have been studied during the last year. In this paper, we consider a novel family of bivariate copulas, called...
Persistent link: https://www.econbiz.de/10010735914
L’objectif général de l’étude est d’analyser la situation de la pauvreté au Burundi. Pour ce faire, trois objectifs spécifiques sont considérés : évaluer la pauvreté monétaire à l’aide d’une échelle d’équivalence ; construire un indicateur composite de la pauvreté basé...
Persistent link: https://www.econbiz.de/10010736863
The present study aimed at investigating the existence of long memory properties in ten developed stock markets across the globe. When return series exhibit long memory, the series realizations are not independent over time and past returns can help predict future returns, thus violating the...
Persistent link: https://www.econbiz.de/10010660300
and components of co-volatility are compared to examine the effect of jumps on systematic risk using tick-by-tick data … considerably underestimate the systematic risk. …
Persistent link: https://www.econbiz.de/10010662588
some progress has been made recently, a complete distribution theory of MLE for EGARCH models is still missing. Furthermore …, as starting values for MLE. The estimator of the dynamic parameter is inde- pendent of the innovation distribution. For … the other parameters we assume that the innovation distribution belongs to the class of Generalized Error Distributions …
Persistent link: https://www.econbiz.de/10010662673