The agricultural and energy industries are closely related, both biologically and financially. The paper discusses the relationship and the interactions on price and volatility, with special focus on the covolatility spillover effects for these two industries. The interaction and covolatility spillovers, or the delayed effect of a returns shock in one asset on the subsequent volatility or covolatility in another asset, between the energy and agricultural industries is the primary emphasis of the paper. Although there has already been significant research on biofuel and biofuel-related crops, much of the previous research has sought to find a relationship among commodity prices. Only a few published papers have been concerned with volatility spillovers. However, it must be emphasized that there have been numerous technical errors in the theoretical and empirical research, which needs to be corrected. The paper not only considers futures prices as a widely-used hedging instrument, but also takes an interesting new hedging instrument, ETF, into account. ETF is regarded as index futures when investors manage their portfolios, so it is possible to calculate an optimal dynamic hedging ratio. This is a very useful and interesting application for the estimation and testing of volatility spillovers. In the empirical analysis, multivariate conditional volatility diagonal BEKK models are estimated for comparing patterns of covolatility spillovers. The paper provides a new way of analyzing and describing the patterns of covolatility spillovers, which should be useful for the future empirical analysis of estimating and testing covolatility spillover effects.

Additional Metadata
Keywords Energy and agriculture, covolatility spillovers, spot prices, futures prices, exchange traded funds, biofuels, optimal dynamic hedging
JEL Time-Series Models; Dynamic Quantile Regressions (jel C32), Financial Econometrics (jel C58), Contingent Pricing; Futures Pricing (jel G13), Agricultural Finance (jel Q14), Alternative Energy Sources (jel Q42)
Persistent URL hdl.handle.net/1765/93115
Series Econometric Institute Research Papers
Note The authors are grateful to Leh-Chyan So for helpful comments and suggestions. For financial support, the first author wishes to thank the National Science Council, Taiwan, and the third author acknowledges the Australian Research Council and the National Science Council, Taiwan.
Citation
Chang, C-L, Liu, C-P, & McAleer, M.J. (2016). Volatility Spillovers for Spot, Futures, and ETF Prices in Energy and Agriculture (No. EI2016-28). Econometric Institute Research Papers. Retrieved from http://hdl.handle.net/1765/93115