Ciência-IUL
Publicações
Descrição Detalhada da Publicação
Título Revista
Journal of Forecasting
Ano (publicação definitiva)
2019
Língua
Inglês
País
Estados Unidos da América
Mais Informação
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Scopus
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Abstract/Resumo
The increase in oil price volatility in recent years has raised the importance of forecasting it accurately for valuing and hedging investments. The paper models and forecasts the crude oil exchange-traded funds (ETF) volatility index, which has been used in the last years as an important alternative measure to track and analyze the volatility of future oil prices. Analysis of the oil volatility index suggests that it presents features similar to those of the daily market volatility index, such as long memory, which is modeled using well-known heterogeneous autoregressive (HAR) specifications and new extensions that are based on net and scaled measures of oil price changes. The aim is to improve the forecasting performance of the traditional HAR models by including predictors that capture the impact of oil price changes on the economy. The performance of the new proposals and benchmarks is evaluated with the model confidence set (MCS) and the Generalized-AutoContouR (G-ACR) tests in terms of point forecasts and density forecasting, respectively. We find that including the leverage in the conditional mean or variance of the basic HAR model increases its predictive ability. Furthermore, when considering density forecasting, the best models are a conditional heteroskedastic HAR model that includes a scaled measure of oil price changes, and a HAR model with errors following an exponential generalized autoregressive conditional heteroskedasticity specification. In both cases, we consider a flexible distribution for the errors of the conditional heteroskedastic process.
Agradecimentos/Acknowledgements
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Palavras-chave
Forecasting oil volatility,Heterogeneous autoregression,Leverage,Net oil price changes,Scaled oil price changes
Classificação Fields of Science and Technology
- Matemáticas - Ciências Naturais
- Ciências da Computação e da Informação - Ciências Naturais
- Economia e Gestão - Ciências Sociais
- Outras Ciências Sociais - Ciências Sociais
Registos de financiamentos
Referência de financiamento | Entidade Financiadora |
---|---|
88882.305837/2018-01 | Coordenação de Aperfeiçoamento de Pessoal de Nível Superior |
UID/GES/00315/2019 | Fundação para a Ciência e a Tecnologia |
PGC2018-096977-B-I00 | Spanish Ministry of Economy and Competitiveness |
ECO2015-70331-C2-2-R | Spanish Ministry of Economy and Competitiveness |