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Dynamic spillovers among major energy and cereal commodity prices
Journal article   Open access   Peer reviewed

Dynamic spillovers among major energy and cereal commodity prices

Walid Mensi, Shawkat Hammoudeh, Duc Khuong Nguyen and Seong-Min Yoon
Energy economics, v 43, pp 225-243
May 2014
url
https://faculty-research.ipag.edu/wp-content/uploads/recherche/WP/IPAG_WP_2014_160.pdfView

Abstract

Cereal Energy Multivariate GARCH OPEC meetings Volatility spillovers
Over the past decade, the sharp increases in the prices of oil and agricultural commodities have raised serious concerns about the heightened volatility of these markets and the possible negative interactions between them. This article deals with the dynamic return and volatility spillovers across international energy and cereal commodity markets. It also examines the impacts of three types of OPEC news announcements on the volatility spillovers and persistence in these markets. For this purpose, we make use of the VAR-BEKK-GARCH and VAR-DCC-GARCH models for the daily spot prices of eight major commodities including WTI oil, Europe Brent oil, gasoline, heating oil, barley, corn, sorghum, and wheat. Our results provide evidence of significant linkages between these energy and cereal markets. Moreover, the OPEC news announcements are found to exert influence on the oil markets as well as on the oil–cereal relationships. Finally, we show that the persistence of volatility decreases (increases) for the crude oil and heating oil (gasoline) returns after accounting for the OPEC announcements in these multivariate GARCH models. However, the results are more mixed for the cereal markets. Overall, our results can be used to improve the risk-adjusted performance by having more diversified portfolios and also serve to hedge the oil risk more effectively. •We study the return and volatility spillovers across international energy and cereal commodity markets.•The impacts of OPEC news announcements on these spillovers are also considered.•Our results show evidence of significant linkages between the energy and cereal markets.•OPEC announcements exert influence on the energy markets as well as on the energy–cereal links.•The presence of OPEC news in multivariate volatility models leads to changes in volatility persistence.

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195 citations in Scopus

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Web of Science research areas
Economics
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