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Time Series Copulas for Heteroskedastic Data

Rub\'en Loaiza-Maya, Michael S. Smith and Worapree Maneesoonthorn

Papers from arXiv.org

Abstract: We propose parametric copulas that capture serial dependence in stationary heteroskedastic time series. We develop our copula for first order Markov series, and extend it to higher orders and multivariate series. We derive the copula of a volatility proxy, based on which we propose new measures of volatility dependence, including co-movement and spillover in multivariate series. In general, these depend upon the marginal distributions of the series. Using exchange rate returns, we show that the resulting copula models can capture their marginal distributions more accurately than univariate and multivariate GARCH models, and produce more accurate value at risk forecasts.

New Economics Papers: this item is included in nep-ecm, nep-ets and nep-rmg
Date: 2017-01
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