Forecasting Covariance Matrices : A Mixed Approach
Forecasting Covariance Matrices : A Mixed Approach
复制标题
预测协方差矩阵:混合方法
DOI:
10.1093/jjfinec/nbu031
复制
发表时间:
2014
影响因子:
2.5
通讯作者:
V. Voev
中科院分区:
文献类型:
--
作者:
Halbleib;V. Voev
In this article, we introduce a new method of forecasting large-dimensional covariance matrices by exploiting the theoretical and empirical potential of mixing forecasts derived from different information sets. The main theoretical contribution of the article is to find the conditions under which a mixed approach (MA) provides a smaller mean squared forecast error than a standard one. The conditions are general and do not rely on distributional assumptions of the forecasting errors or on any particular model specification. The empirical contribution of the article regards a comprehensive comparative exercise of the new approach against standard ones when forecasting the covariance matrix of a portfolio of thirty stocks. The implemented MA uses volatility forecasts computed from high-frequency-based models and correlation forecasts using realized-volatility-adjusted dynamic conditional correlation models. The MA always outperforms the standard methods computed from daily returns and performs equally well to the ones using high-frequency-based specifications, however at a lower computational cost.
登录
查看更多内容
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
Xin Jin;J. Maheu
通讯作者:
J. Maheu
DOI:
--
发表时间:
2012
期刊:
影响因子:
--
作者:
Karim Bannouh;M. Martens;R. Oomen;Dick J. C. van Dijk
通讯作者:
Dick J. C. van Dijk
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
Pierre Perron;Linxia Ren
通讯作者:
Linxia Ren
影响因子:
2.5
作者:
Corsi, Fulvio
通讯作者:
Corsi, Fulvio
DOI:
10.1002/9781118272039.ch16
发表时间:
2012-03
期刊:
--
影响因子:
--
作者:
Eric Ghysels;Rossen Valkanov
通讯作者:
Eric Ghysels;Rossen Valkanov