Correlations and volatility spillovers across commodity and stock markets: Linking energies, food, and gold

Mensi, Walid, Beljid, Makram, Boubaker, Adel, & Managi, Shunsuke (2013) Correlations and volatility spillovers across commodity and stock markets: Linking energies, food, and gold. Economic Modelling, 32, pp. 15-22.

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Abstract

This paper employs a VAR-GARCH model to investigate the return links and volatility transmission between the S&P 500 and commodity price indices for energy, food, gold and beverages over the turbulent period from 2000 to 2011. Understanding the price behavior of commodity prices and the volatility transmission mechanism between these markets and the stock exchanges are crucial for each participant, including governments, traders, portfolio managers, consumers, and producers. For return and volatility spillover, the results show significant transmission among the S&P 500 and commodity markets. The past shocks and volatility of the S&P 500 strongly influenced the oil and gold markets. This study finds that the highest conditional correlations are between the S&P 500 and gold index and the S&P 500 and WTI index. We also analyze the optimal weights and hedge ratios for commodities/S&P 500 portfolio holdings using the estimates for each index. Overall, our findings illustrate several important implications for portfolio hedgers for making optimal portfolio allocations, engaging in risk management and forecasting future volatility in equity and commodity markets. © 2013 Elsevier B.V.

Impact and interest:

58 citations in Scopus
45 citations in Web of Science®
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ID Code: 75383
Item Type: Journal Article
Refereed: Yes
Keywords: Commodity prices; Energy price; Hedge ratios; Stock markets; VAR-GARCH models; Volatility spillovers
DOI: 10.1016/j.econmod.2013.01.023
ISSN: 02649993
Subjects: Australian and New Zealand Standard Research Classification > ECONOMICS (140000) > APPLIED ECONOMICS (140200)
Divisions: Current > QUT Faculties and Divisions > QUT Business School
Copyright Owner: Elsevier
Deposited On: 21 Aug 2014 04:44
Last Modified: 22 Jun 2017 10:01

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