References [1] Popp, J., Z. Lakner, M. Harangi-Rákos, and M. Fári (2014), “The Effect of Bioenergy Expansion: Food, Energy, and Environment”, Renewable and Sustainable Energy Reviews, 32, 559–578. http://dx.doi.org/10.1016/j.rser.2014.01.056). [2] Popp, J., M. Harangi-Rákos, Z. Gabnai, P. Balogh, G. Antal, and A. Bai (2016), “Biofuels and Their Co-Products as Livestock Feed: Global Economic and Environmental Implications, Molecules, 21(3), 285. [3] Wisner, R. (2008), “Impact of Ethanol on the Livestock and Poultry Industry, Renewable Fuels Association, October. (http://www.agmrc.org/renewable_energy/ethanol/impact_of_ethanol_on_the_livestock_and_poultry_industry.cfm, accessed 1 January 2016). [4] Texas Comptroller of Public Accounts (2008), “The Energy Report – Ethanol”. Texas: Texas Comptroller of Public Accounts. [5] PURE (2015), “European renewable ethanol. Enabling Innovation and Sustainable Development”, State of the Industry, Brussels. Available at: http://epure.org/media/1215/epure_state_industry2015_web.pdf. [6] Wisner, R. (2015), “November Monthly Renewable Energy Report. Distillers grains balance sheet”, Agricultural Marketing Resource Center. [7] RFA (2016), “World fuel ethanol production”, Renewable Fuels Association 2016. Available at: http://ethanolrfa.org/resources/industry/statistics/#1454098996479–8715d404–e546. [8] Zhang, W., E.A. Yu, S. Rozelle, J. Yang, and S. Msangi (2013), “The Impact of Biofuel Growth on Agriculture: Why is the Range of Estimates so Wide?”, Food Policy, 38, 227-239. [9] De Gorter, H., D. Drabik, D.R. Just (2013a), “Biofuel Policies and Food Grain Commodity Prices 2006-2012: All Boom and No Bust?”, AgBioForum, 16, 1-13. [10] De Gorter, H., D. Drabik, E.M. Kliauga, and G.R. Timilsina (2013b), “An Economic Model of Brazil’s Ethanol-Sugar Markets and Impacts of Fuel Policies”, World Bank, Policy Research Working Paper 6524, June 2013. [11] Durham, C., G. Davies, T. Bhattacharya (2012), “Can Biofuels Policy Work for Food Security”, UK Department for Environment, Food and Rural Affairs (DEFRA), Contract No.: PB13786. [12] Engle, R.F. (1982), “Autoregressive Conditional Heteroskedasticity with Estimates of the Variance of United Kingdom Inflation,” Econometrica, 50(4), 987-1007. [13] Bollerslev, T. (1986), “Generalized Autoregressive Conditional Heteroscedasticity,” Journal of Econometrics, 31(3), 307-327. [14] Glosten, L.R., R. Jagannathan, and D.E. Runkle (1993), “On the Relation between the Expected Value and Volatility of Nominal Excess Return on Stocks,” Journal of Finance, 48(5), 1779-1801. [15] McAleer, M., F. Chan, S. Hoti, and O. Lieberman (2008), “Generalized Autoregressive Conditional Correlation,” Econometric Theory, 24(6), 1554-1583. [16] McAleer, M. (2014), “Asymmetry and Leverage in Conditional Volatility Models,” Econometrics, 2(3), 145-150. [17] McAleer, M. and C. Hafner (2014), “A One Line Derivation of EGARCH,” Econometrics, 2(2), 92-97. [18] Martinet, G.G. and M. McAleer (2016), “On the Invertibility of EGARCH(p,q),” to appear in Econometric Reviews. [19] Nelson, D.B. (1990), “ARCH Models as Diffusion Approximations,” Journal of Econometrics, 45(1-2), 7-38. [20] Nelson, D.B. (1991), “Conditional Heteroskedasticity in Asset Returns: A New Approach,” Econometrica, 59(2), 347-370. [21] Tsay, R. S. (1987), “Conditional Heteroscedastic Time Series Models,” Journal of the American Statistical Association, 82(398), 590-604. [22] Lence, S.H. and D.J. Hayes (2002), “U.S. Farm Policy and the Volatility of Commodity Prices and Farm Revenues,” American Journal of Agricultural Economics, 84(2), 335-351. [23] Jin, H.J. and D.L. Frechette (2004), “Fractional Integration in Agricultural Futures Price Volatilities,” American Journal of Agricultural Economics, 86(2), 432-443. [24] Egelkraut, T.M., P. Garcia, and B.J. Sherrick (2007), “The Term Structure of Implied Forward Volatility: Recovery and Informational Content in the Corn Options Market,” American Journal of Agricultural Economics, 89(1), 1-11. [25] Engle, R.F. and K.F. Kroner (1995), “Multivariate Simultaneous Generalized ARCH,” Econometric Theory, 11(1), 122-150. [26] Engle, R.F. (2002), “Dynamic Conditional Correlation: A Simple Class of Multivariate Generalized Autoregressive Conditional Hereoskedasticity Models,” Journal of Business and Economic Statistics, 20(3), 339-350. [27] Ling, S. and M. McAleer (2003), “Asymptotic Theory for a Vector ARMA-GARCH Model,” Econometric Theory, 19(2), 280-310. [28] McAleer, M., S. Hoti, and F. Chan (2009), “Structure and Asymptotic Theory for Multivariate Asymmetric Conditional Volatility,” Econometric Reviews, 28, Issue 5, 422-440. [29] Bollerslev, T. (1990), “Modelling the Coherence in Short-run Nominal Exchange Rate: A Multivariate Generalized ARCH Approach,” Review of Economics and Statistics, 72(3), 498-505. [30] Bollerslev, T., R.F. Engle, and J.M. Wooldridge (1988), “A Capital Asset Pricing Model with Time Varying Covariance,” Journal of Political Economy, 96(1), 116-131. [31] Hafner, C. and M. McAleer (2014), “A One Line Derivation of DCC: Application of a Vector Random Coefficient Moving Average Process,” Tinbergen Institute Discussion Paper, 14-087, The Netherlands. [32] Jeantheau, T. (1998), “Strong Consistency of Estimators for Multivariate ARCH Models,” Econometric Theory, 14(1), 70-86. [33] Tse, Y.K. and A.K.C. Tsui (2002), “A Multivariate GARCH Model with Time-Varying Correlations,” Journal of Business and Economic Statistics, 20(3), 351-362. [34] Cesar, R.G. and Z. Marco (2012), “Effectiveness of Hedging within the High Price Volatility Context,” Land Economy Working Paper Series, Number 69, SRUC. [35] Sendhil, R., A. Kar, V.C. Mathur, and G.K. Jha (2013), “Price Discovery, Transmission and Volatility: Evidence from Agricultural Commodity Futures,” Agricultural Economics Research Review, 26(1), 41-54. [36] Trujillo-Barrera, A., M. Mallory, and P. Garcia (2012), “Volatility Spillovers in U.S. Crude Oil, Ethanol, and Corn Futures Markets,” Journal of Agricultural and Resource Economics, 37(2), 247–262. [37] Cabrera, B.L. and F. Schulz (2013), “Volatility Linkages between Energy and Agricultural Commodity Prices,” SFB 649 Discussion paper 2013-042, Economic Risk. Berlin. [38] Chang, C.-L., M. McAleer, and R. Tansuchat (2011), “Crude Oil Hedging Strategies Using Dynamic Multivariate GARCH,” Energy Economics, 33(5), 912-923. [39] Revoredo-Giha, C. and M. Zuppiroli (2012), “Effectiveness of Hedging within the High Price Volatility Context,” Land Economy Working Paper Series, Number: 69, SRUC. [40] Chang, C.-L., L.-H. Chen, S. Hammoudeh, and M. McAleer (2012), “Asymmetric Adjustments in the Ethanol and Grains Markets,” Energy Economics, 34(6), 1990-2002. [41] Zhang, Z., L. Lohr, C. Escalante, and M. Wetzstein (2009), “Ethanol, Corn, and Soybean Price Relations in a Volatile Vehicle-fuels Market,” Energies, 2(2), 230-339. [42] Zhang, D., F. Asche, and A. Oglend (2014), “Ethanol and Trade: An Analysis of Price Transmission in the US Market,” Energy Economics, 42(C), 1-8. [43] Zhao, J. and B.K. Goodwin (2011), “Volatility Spillovers in Agricultural Commodity Markets: An Application Involving Implied Volatilities from Options Markets,” Paper to the Agricultural & Applied Economics Association’s 2011 AAEA & NAREA Joint Annual Meeting, Pittsburgh, Pennsylvania. [44] Black, F. (1976), “The Pricing of Commodity Contracts,” Journal of Financial Economics, 3 (1–2), 167-179. [45] Nazlioglu, S., C. Erdem, and U. Soytas (2013), “Volatility Spillover between Oil and Agricultural Commodity Markets,” Energy Economics, 36, 658-665. [46] Hafner, C.M. and H. Herwartz (2006), “A Lagrange Multiplier Test for Causality in Variance,” Economics Letters, 93 (1), 137–141. [47] Chang, C.-L. and M. McAleer (2016), “A Simple Test for Causality in Volatility”, Tinbergen Institute Discussion Paper 2016-094/III, November 2016. [48] Serra, T. (2011), “Volatility Spillovers between Food and Energy Markets: A Semiparametric Approach,” Energy Economics, 33 (6), 1155-1164. [49] Serra T. (2012), “Biofuel-related Price Volatility Literature: A Review and New Approaches,” Paper Presented at the Conference on International Association of Agricultural Economists (IAAE) Triennial, Foz do Iguaçu, Brazil. [50] Serra, T., D. Zilberman, and J. Gil (2011), “Price Volatility in Ethanol Markets,” European Review of Agricultural Economics, 38(2), 259-280. [51] Serra, T. and Gil, J.M. (2013), “Price volatility in food markets: can stock building mitigate price fluctuations,” European Review of Agricultural Economics, 40(3), 507-528. [52] Caporin, M. and M. McAleer (2008), “Scalar BEKK and Indirect DCC,” Journal of Forecasting, 27, Issue 6, 537-549. [53] Caporin, M. and M. McAleer (2012), “Do We Really Need Both BEKK and DCC? A Tale of Two Multivariate GARCH Models,” Journal of Economic Surveys, 26(4), 736-751. [54] Amemiya, T. (1985), Advanced Econometrics, Harvard University Press, Cambridge, MA, USA. [55] Baba, Y., R.F. Engle, D. Kraft, and K.F. Kroner (1985), “Multivariate Simultaneous Generalized ARCH,” Unpublished manuscript, Department of Economics, University of California, San Diego, CA, USA. [56] Dickey, D.A. and W.A. Fuller (1979), “Distribution of the Estimators for Autoregressive Time Series with a Unit Root,” Journal of the American Statistical Association, 74(366), 427–431. [57] Said, S.E. and D.A. Dickey (1984), “Testing for Unit Roots in Autoregressive-Moving Average Models of Unknown Order,” Biometrika, 71 (3), 599-607. [58] Phillips, P.C.B. and P. Perron (1988), “Testing for a Unit Root in Time Series Regression,” Biometrika, 75(2), 335-346.