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Outro

Forecasting conditional covariance matrices in high-dimensional time seriesa general dynamic factor approach

Trucíos, Carlos; Mazzeu,, João H. G.; Hallin, Marc; Hotta, Luiz Koodi; Pereira, Pedro L. Valls; Zevallos Herencia, Mauricio Henrique

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Resumo

Based on a General Dynamic Factor Model with infinite-dimensional factor space and MGARCH volatility models, we develop new estimation and forecasting procedures for conditional covariance matrices in high-dimensional time series. The finite-sample performance of our approach is evaluated via Monte Carlo experiments and outperforms the most alternative methods. This new approach is also used to construct minimum one-step-ahead variance portfolios for a high-dimensional panel of assets. The results are shown to match the results of recent proposals by Engle, Ledoit, and Wolf and achieve better out-of-sample portfolio performance than alternative procedures proposed in the literature.

Ficha do documento

Tipo
Outro
Ano
2021
Instituição
Fundação Getulio Vargas
Idioma
Inglês
Acesso
Não informado
Identificador
oai:repositorio.fgv.br:10438/35455

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