Efficient estimation of a semiparametric dynamic copula model

نویسندگان

  • Christian M. Hafner
  • Olga Reznikova
چکیده

Outline Introduction Semi-parametric dynamic copula Motivation Local likelihood estimation Variance of the estimator Bias of the estimator Bandwidth selection Estimation of joint likelihood Modeling of marginal distributions Simulations and applications Simulations Empirical example Conclusions Problems and Solutions Problems Modeling dependence is critical for financial time series Model volatility of returns of financial assets Different approaches are used to model correlations, e.g. Copulas Allow to model nonlinear dependence Look beyond correlation (i.e., linear dependence), which is required for non-elliptical distributions Problems and Solutions Problems Modeling dependence is critical for financial time series Model volatility of returns of financial assets Different approaches are used to model correlations, e.g. Copulas Allow to model nonlinear dependence Look beyond correlation (i.e., linear dependence), which is required for non-elliptical distributions Problems and Solutions Problems Modeling dependence is critical for financial time series Model volatility of returns of financial assets Different approaches are used to model correlations, e.g. Copulas Allow to model nonlinear dependence Look beyond correlation (i.e., linear dependence), which is required for non-elliptical distributions Problems and Solutions Problems Modeling dependence is critical for financial time series Model volatility of returns of financial assets Different approaches are used to model correlations, e.g. Copulas Allow to model nonlinear dependence Look beyond correlation (i.e., linear dependence), which is required for non-elliptical distributions Problems and Solutions Problems Modeling dependence is critical for financial time series Model volatility of returns of financial assets Different approaches are used to model correlations, e.g. Copulas Allow to model nonlinear dependence Look beyond correlation (i.e., linear dependence), which is required for non-elliptical distributions Problems and Solutions Problems Modeling dependence is critical for financial time series Model volatility of returns of financial assets Different approaches are used to model correlations, e.g. Copulas Allow to model nonlinear dependence Look beyond correlation (i.e., linear dependence), which is required for non-elliptical distributions Problems and Solutions Problems Modeling dependence is critical for financial time series Model volatility of returns of financial assets Different approaches are used to model correlations, e.g. Copulas Allow to model nonlinear dependence Look beyond correlation (i.e., linear dependence), which is required for non-elliptical distributions Problems and Solutions Problems Modeling dependence is critical for financial time series Model volatility of returns of financial assets Different approaches are used to model correlations, e.g. Copulas Allow to model nonlinear dependence Look beyond correlation (i.e., linear dependence), which is required for non-elliptical distributions Outline Introduction Semi-parametric dynamic copula Motivation …

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Efficient estimation of parameters in marginals in semiparametric multivariate models Preliminary and Incomplete – Please do not cite

Recent literature on semiparametric copula models focused on the situation when the marginals are specified nonparametrically and the copula function is given a parametric form. For example, this setup is used in Chen, Fan and Tsyrennikov (2006) [Efficient Estimation of Semiparametric Multivariate Copula Models, JASA] who focus on the efficient estimation of copula parameters. We consider a rev...

متن کامل

Copula-based semiparametric models for multivariate time series

The authors extend to multivariate contexts the copula-based univariate time series modeling approach of Chen & Fan [X. Chen, Y. Fan, Estimation of copula-based semiparametric time series models, J. Econometrics 130 (2006) 307–335; X. Chen, Y. Fan, Estimation and model selection of semiparametric copula-based multivariate dynamic models under copula misspecification, J. Econometrics 135 (2006) ...

متن کامل

Estimation and Model Selection of Semiparametric Copula-Based Multivariate Dynamic Models Under Copula Misspecification∗

Recently Chen and Fan (2003a) introduced a new class of semiparametric copula-based multivariate dynamic (SCOMDY) models. A SCOMDY model specifies the conditional mean and the conditional variance of a multivariate time series parametrically (such as VAR, GARCH), but specifies the multivariate distribution of the standardized innovation semiparametrically as a parametric copula evaluated at non...

متن کامل

Contributions to copula modeling

This report summarizes my contributions to copulas modeling. Two main research topics are addressed: The construction of semiparametric family of copulas based on a set of orthonormal functions and a matrix and the design of efficient estimation procedures.

متن کامل

Efficient estimation of parameters in marginals in semiparametric multivariate models∗

We consider a general multivariate model where univariate marginal distributions are known up to a common parameter vector and we are interested in estimating that vector without assuming anything about the joint distribution, except for the marginals. If we assume independence between the marginals and maximize the resulting quasilikelihood, we obtain a consistent but inefficient estimate. If ...

متن کامل

Parameter estimation for pair-copula constructions

We explore various estimators for the parameters of a pair-copula construction (PCC), among those the stepwise semiparametric (SSP) estimator, designed for this dependence structure. We present its asymptotic properties, as well as the estimation algorithm for the two most common types of PCCs. Compared to the considered alternatives, i.e. maximum likelihood, inference functions for margins and...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Computational Statistics & Data Analysis

دوره 54  شماره 

صفحات  -

تاریخ انتشار 2010