Realized Copula
Abstract
We introduce the notion of realized copula. Based on assumptions of the marginal distributions of daily stock returns and a copula family, realized copula is defined as the copula structure materialized in realized covariance estimated from within-day highfrequency data. Copula parameters are estimated in a method-of-moments type of fashion through Höffding's lemma. Applying this procedure day by day gives rise to a time series of copula parameters that is suitably approximated by an autoregressive time series model. This allows us to capture time-varying dependency in our framework. Studying a portfolio riskmanagement application, we find that time-varying realized copula is superior to standard benchmark models in the literature.Download Info
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Paper provided by University of St. Gallen, School of Economics and Political Science in its series Economics Working Paper Series with number 1214.Length: 34 pages
Date of creation: May 2012
Date of revision:
Handle: RePEc:usg:econwp:2012:14
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Keywords: Realized variance; realized covariance; realized copula; multivariate dependence;Other versions of this item:
- Matthias R. Fengler & Ostap Okhrin, 2012. "Realized Copula," SFB 649 Discussion Papers SFB649DP2012-034, Sonderforschungsbereich 649, Humboldt University, Berlin, Germany.
- G12 - Financial Economics - - General Financial Markets - - - Asset Pricing
- C13 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Estimation: General
- C14 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Semiparametric and Nonparametric Methods: General
- C22 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models
- C50 - Mathematical and Quantitative Methods - - Econometric Modeling - - - General
This paper has been announced in the following NEP Reports:
- NEP-ALL-2012-06-05 (All new papers)
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Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.Cited by:
- Thorsten Dickhaus & Jakob Gierl, 2012. "Simultaneous test procedures in terms of p-value copulae," SFB 649 Discussion Papers SFB649DP2012-049, Sonderforschungsbereich 649, Humboldt University, Berlin, Germany.
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