Showing 1 - 10 of 46
We develop a test of equality between two dependence structures estimated through empirical copulas. We provide …
Persistent link: https://www.econbiz.de/10005858034
In this paper we provide a convenient econometric framework for the analy-sis of nonlinear dependence in financial applications. We introduce models withconstrained nonparametric dependence, which specify the conditional distrib-ution or the copula in terms of a one-dimensional functional...
Persistent link: https://www.econbiz.de/10005858851
We consider a nonparametric method to estimate copulas, i.e. functions linking joint distributions to their univariate … margins. We derive the asymptotic properties of kernel estimators of copulas and their derivatives in the context of a …
Persistent link: https://www.econbiz.de/10005859328
In this paper we discuss some statistical pitfalls that may occur in modeling cross-dependences with copulas in … financial applications. In particular we focus on issues arising in the estimation and the empirical choice of copulas as well … as in the design of time-dependent copulas. …
Persistent link: https://www.econbiz.de/10005858145
In this paper we present a model to price and hedge basket credit derivatives andcollateralised loan obligation. Based upon the copula-approach by Schönbucher and Schubert (2001) the model allows a specification of the joint dynamics of credit spreads and default intensities, including a...
Persistent link: https://www.econbiz.de/10005858551
The aim of this paper is to extend the results of Jarrow, Yu (2001) onthe spread term structures of corporate bonds. We first consider differentcharacterisations of these term structures, when the available informationcorresponds to the default histories of the firms. The approach is then...
Persistent link: https://www.econbiz.de/10005858852
We study a test statistic based on the integrated squared difference between a kernel estimator of the copula density and a kernel smoothed estimator of the parametric copula density. We show for fixed smoothing parameters that the test is consistent and that the asymptotic properties are driven...
Persistent link: https://www.econbiz.de/10005858871
This project identi.es and quanti.es two potential sources of model riskin the valuation of basket credit derivatives. The frameworkemployed is that of a latent variable model with factor structure which enjoys a great popularity in the .nancial industry as well as in academia. Preliminary...
Persistent link: https://www.econbiz.de/10005859326
We study Tikhonov Regularized estimation of quantile structural effects implied by a nonseparable model. The nonparametric instrumental variable estimator is based on a minimum distance principle. We show that the minimum distance problem without regularization is locally ill-posed, and consider...
Persistent link: https://www.econbiz.de/10005857742
In this paper, we investigate the information content of implied probabilities (Back and Brown, 1993) to improve estimation in unconditional moment conditions models. We propose and evaluate two 3-step euclidian empirical likelihood estimators and their bias-correction versions for weakly...
Persistent link: https://www.econbiz.de/10005857757