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Biodiesel as a motor fuel price stabilization mechanism

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  • Serra, Teresa
  • Gil, Jose Maria

Abstract

This article studies the capacity of biofuels to reduce motor fuel price fluctuations. For this purpose, we study dependence between crude oil and biodiesel blend prices in Spain. Copula models are used for this purpose. Results suggest that the practice of blending biodiesel with diesel can protect consumers against extreme crude oil price increases.

Suggested Citation

  • Serra, Teresa & Gil, Jose Maria, 2012. "Biodiesel as a motor fuel price stabilization mechanism," 2012 Conference, August 18-24, 2012, Foz do Iguacu, Brazil 126056, International Association of Agricultural Economists.
    • Handle: RePEc:ags:iaae12:126056
    DOI: 10.22004/ag.econ.126056
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    1. Reboredo, Juan C., 2011. "How do crude oil prices co-move?: A copula approach," Energy Economics, Elsevier, vol. 33(5), pages 948-955, September.
    2. Galeotti, Marzio & Lanza, Alessandro & Manera, Matteo, 2003. "Rockets and feathers revisited: an international comparison on European gasoline markets," Energy Economics, Elsevier, vol. 25(2), pages 175-190, March.
    3. Vedenov, Dmitry V. & Duffield, James A. & Wetzstein, Michael E., 2006. "Entry of Alternative Fuels in a Volatile U.S. Gasoline Market," Journal of Agricultural and Resource Economics, Western Agricultural Economics Association, vol. 31(1), pages 1-13, April.
    4. Peter Ferderer, J., 1996. "Oil price volatility and the macroeconomy," Journal of Macroeconomics, Elsevier, vol. 18(1), pages 1-26.
    5. Chen, Li-Hsueh & Finney, Miles & Lai, Kon S., 2005. "A threshold cointegration analysis of asymmetric price transmission from crude oil to gasoline prices," Economics Letters, Elsevier, vol. 89(2), pages 233-239, November.
    6. Andrew J. Patton, 2004. "On the Out-of-Sample Importance of Skewness and Asymmetric Dependence for Asset Allocation," Journal of Financial Econometrics, Oxford University Press, vol. 2(1), pages 130-168.
    7. Teresa Serra & David Zilberman & José Gil, 2011. "Price volatility in ethanol markets," European Review of Agricultural Economics, Oxford University Press and the European Agricultural and Applied Economics Publications Foundation, vol. 38(2), pages 259-280, June.
    8. Radchenko, Stanislav, 2005. "Oil price volatility and the asymmetric response of gasoline prices to oil price increases and decreases," Energy Economics, Elsevier, vol. 27(5), pages 708-730, September.
    9. Tareen, Irfan Y. & Wetzstein, Michael E. & Duffield, James A., 2000. "Biodiesel As A Substitute For Petroleum Diesel In A Stochastic Environment," Journal of Agricultural and Applied Economics, Southern Agricultural Economics Association, vol. 32(2), pages 1-9, August.
    10. Du, Xiaodong & Hayes, Dermot J., 2009. "The impact of ethanol production on US and regional gasoline markets," Energy Policy, Elsevier, vol. 37(8), pages 3227-3234, August.
    11. Hammoudeh, Shawkat & Li, Huimin & Jeon, Bang, 2003. "Causality and volatility spillovers among petroleum prices of WTI, gasoline and heating oil in different locations," The North American Journal of Economics and Finance, Elsevier, vol. 14(1), pages 89-114, March.
    12. Honarvar, Afshin, 2009. "Asymmetry in retail gasoline and crude oil price movements in the United States: An application of hidden cointegration technique," Energy Economics, Elsevier, vol. 31(3), pages 395-402, May.
    13. Ben S. Bernanke, 1983. "Irreversibility, Uncertainty, and Cyclical Investment," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 98(1), pages 85-106.
    14. Martin Hoesli & Kustrim Reka, 2013. "Volatility Spillovers, Comovements and Contagion in Securitized Real Estate Markets," The Journal of Real Estate Finance and Economics, Springer, vol. 47(1), pages 1-35, July.
    15. Lai, YiHao & Chen, Cathy W.S. & Gerlach, Richard, 2009. "Optimal dynamic hedging via copula-threshold-GARCH models," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 79(8), pages 2609-2624.
    16. Bohi, Douglas R., 1991. "On the macroeconomic effects of energy price shocks," Resources and Energy, Elsevier, vol. 13(2), pages 145-162, June.
    17. Godby, Rob & Lintner, Anastasia M. & Stengos, Thanasis & Wandschneider, Bo, 2000. "Testing for asymmetric pricing in the Canadian retail gasoline market," Energy Economics, Elsevier, vol. 22(3), pages 349-368, June.
    18. Nazlioglu, Saban & Soytas, Ugur, 2011. "World oil prices and agricultural commodity prices: Evidence from an emerging market," Energy Economics, Elsevier, vol. 33(3), pages 488-496, May.
    19. Lance J. Bachmeier & James M. Griffin, 2003. "New Evidence on Asymmetric Gasoline Price Responses," The Review of Economics and Statistics, MIT Press, vol. 85(3), pages 772-776, August.
    20. Fischer, Stanley, 1985. "Supply Shocks, Wage Stickiness, and Accommodation," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 17(1), pages 1-15, February.
    21. Long, Xiangdong & Su, Liangjun & Ullah, Aman, 2011. "Estimation and Forecasting of Dynamic Conditional Covariance: A Semiparametric Multivariate Model," Journal of Business & Economic Statistics, American Statistical Association, vol. 29(1), pages 109-125.
    22. Tareen, Irfan Y. & Wetzstein, Michael E. & Duffield, James A., 2000. "Biodiesel as a Substitute for Petroleum Diesel in a Stochastic Environment," Journal of Agricultural and Applied Economics, Cambridge University Press, vol. 32(2), pages 373-381, August.
    23. Xiaodong Du & Dermot J. Hayes, 2008. "Impact of Ethanol Production on U.S. and Regional Gasoline Prices and on the Profitability of the U.S. Oil Refinery Industry, The," Center for Agricultural and Rural Development (CARD) Publications 08-wp467, Center for Agricultural and Rural Development (CARD) at Iowa State University.
    24. Chen, Sheng-Tung & Kuo, Hsiao-I & Chen, Chi-Chung, 2010. "Modeling the relationship between the oil price and global food prices," Applied Energy, Elsevier, vol. 87(8), pages 2517-2525, August.
    25. Ciaian, Pavel & Kancs, d'Artis, 2011. "Interdependencies in the energy-bioenergy-food price systems: A cointegration analysis," Resource and Energy Economics, Elsevier, vol. 33(1), pages 326-348, January.
    26. Radchenko, Stanislav & Shapiro, Dmitry, 2011. "Anticipated and unanticipated effects of crude oil prices and gasoline inventory changes on gasoline prices," Energy Economics, Elsevier, vol. 33(5), pages 758-769, September.
    27. repec:ags:afjare:141665 is not listed on IDEAS
    28. Zhang, Zibin & Lohr, Luanne & Escalante, Cesar & Wetzstein, Michael, 2010. "Food versus fuel: What do prices tell us?," Energy Policy, Elsevier, vol. 38(1), pages 445-451, January.
    29. Simla Tokgoz & Amani Elobeid, 2006. "Analysis of the Link between Ethanol, Energy, and Crop Markets, An," Food and Agricultural Policy Research Institute (FAPRI) Publications (archive only) 06-wp435, Center for Agricultural and Rural Development (CARD) at Iowa State University.
    30. Chang, Ting-Huan & Su, Hsin-Mei, 2010. "The substitutive effect of biofuels on fossil fuels in the lower and higher crude oil price periods," Energy, Elsevier, vol. 35(7), pages 2807-2813.
    31. repec:arz:wpaper:eres2011-63 is not listed on IDEAS
    32. Grasso, Margherita & Manera, Matteo, 2007. "Asymmetric error correction models for the oil-gasoline price relationship," Energy Policy, Elsevier, vol. 35(1), pages 156-177, January.
    33. Chih‐Chiang Hsu & Chih‐Ping Tseng & Yaw‐Huei Wang, 2008. "Dynamic hedging with futures: A copula‐based GARCH model," Journal of Futures Markets, John Wiley & Sons, Ltd., vol. 28(11), pages 1095-1116, November.
    34. Hamilton, James D, 1983. "Oil and the Macroeconomy since World War II," Journal of Political Economy, University of Chicago Press, vol. 91(2), pages 228-248, April.
    35. Ronald Johnson, 2002. "Search Costs, Lags and Prices at the Pump," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 20(1), pages 33-50, February.
    36. Ewing, Bradley T. & Malik, Farooq & Ozfidan, Ozkan, 2002. "Volatility transmission in the oil and natural gas markets," Energy Economics, Elsevier, vol. 24(6), pages 525-538, November.
    37. repec:bla:manchs:v:69:y:2001:i:5:p:534-52 is not listed on IDEAS
    38. Asche, Frank & Gjolberg, Ole & Volker, Teresa, 2003. "Price relationships in the petroleum market: an analysis of crude oil and refined product prices," Energy Economics, Elsevier, vol. 25(3), pages 289-301, May.
    39. Nazlioglu, Saban, 2011. "World oil and agricultural commodity prices: Evidence from nonlinear causality," Energy Policy, Elsevier, vol. 39(5), pages 2935-2943, May.
    40. Johansen, Soren, 1988. "Statistical analysis of cointegration vectors," Journal of Economic Dynamics and Control, Elsevier, vol. 12(2-3), pages 231-254.
    41. Severin Borenstein & A. Colin Cameron & Richard Gilbert, 1997. "Do Gasoline Prices Respond Asymmetrically to Crude Oil Price Changes?," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 112(1), pages 305-339.
    42. Sadorsky, Perry, 1999. "Oil price shocks and stock market activity," Energy Economics, Elsevier, vol. 21(5), pages 449-469, October.
    43. Al-Gudhea, Salim & Kenc, Turalay & Dibooglu, Sel, 2007. "Do retail gasoline prices rise more readily than they fall?: A threshold cointegration approach," Journal of Economics and Business, Elsevier, vol. 59(6), pages 560-574.
    44. Teresa Serra & David Zilberman & José M. Gil & Barry K. Goodwin, 2011. "Nonlinearities in the U.S. corn‐ethanol‐oil‐gasoline price system," Agricultural Economics, International Association of Agricultural Economists, vol. 42(1), pages 35-45, January.
    45. Douglas Rivers & Quang Vuong, 2002. "Model selection tests for nonlinear dynamic models," Econometrics Journal, Royal Economic Society, vol. 5(1), pages 1-39, June.
    46. Kelvin Balcombe & George Rapsomanikis, 2008. "Bayesian Estimation and Selection of Nonlinear Vector Error Correction Models: The Case of the Sugar-Ethanol-Oil Nexus in Brazil," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 90(3), pages 658-668.
    47. Ning, Cathy & Xu, Dinghai & Wirjanto, Tony S., 2008. "Modeling the leverage effect with copulas and realized volatility," Finance Research Letters, Elsevier, vol. 5(4), pages 221-227, December.
    48. Andrew J. Patton, 2006. "Modelling Asymmetric Exchange Rate Dependence," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 47(2), pages 527-556, May.
    49. Cha, Kyung Soo & Bae, Jeong Hwan, 2011. "Dynamic impacts of high oil prices on the bioethanol and feedstock markets," Energy Policy, Elsevier, vol. 39(2), pages 753-760, February.
    50. Roland Bénabou & Robert Gertner, 1993. "Search with Learning from Prices: Does Increased Inflationary Uncertainty Lead to Higher Markups?," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 60(1), pages 69-93.
    51. Engle, Robert F, 1982. "Autoregressive Conditional Heteroscedasticity with Estimates of the Variance of United Kingdom Inflation," Econometrica, Econometric Society, vol. 50(4), pages 987-1007, July.
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    2. Fousekis, Panos, 2017. "Price co-movement and the hedger's value-at-risk in the futures markets for coffee," Agricultural Economics Review, Greek Association of Agricultural Economists, vol. 0(Issue 1), January.
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    4. GRIGORIADIS, Vasilis & EMMANOUILIDES, Christos & FOUSEKIS, Panos, 2016. "The Integration Of Pigmeat Markets In The Eu. Evidence From A Regular Mixed Vine Copula," Review of Agricultural and Applied Economics (RAAE), Faculty of Economics and Management, Slovak Agricultural University in Nitra, vol. 19(1), pages 1-10, March.
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    9. Serra, Teresa & Zilberman, David, 2013. "Biofuel-related price transmission literature: A review," Energy Economics, Elsevier, vol. 37(C), pages 141-151.
    10. Nasreldin, Osama Ahmed & Devesa, Teresa Serra, 2014. "Price volatility of food staples. The case of millet in Niger," 2014 International Congress, August 26-29, 2014, Ljubljana, Slovenia 182728, European Association of Agricultural Economists.
    11. Ahmed, Osama & Serra, Teresa, 2015. "Evaluate the economic consequences of revenue insurance programs in Spain using copula models. The case of orange and apple," 2015 Conference, August 9-14, 2015, Milan, Italy 212522, International Association of Agricultural Economists.
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    13. Algieri, Bernardina & Leccadito, Arturo, 2017. "Wave after Wave: Contagion Risk from Commodity Markets," Discussion Papers 257801, University of Bonn, Center for Development Research (ZEF).
    14. Fousekis, Panos & Grigoriadis, Vasilis, 2016. "Spatial price dependence by time scale: Empirical evidence from the international butter markets," Economic Modelling, Elsevier, vol. 54(C), pages 195-204.
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    16. Kim, Jong-Min & Kim, Dong H. & Jung, Hojin, 2020. "Modeling non-normal corporate bond yield spreads by copula," The North American Journal of Economics and Finance, Elsevier, vol. 53(C).
    17. Carlson, Mari K. & Rezitis, Anthony N., 2018. "Integration of the EU broiler meat markets – Application of Regular Vine Copulas," 2018 Annual Meeting, August 5-7, Washington, D.C. 273864, Agricultural and Applied Economics Association.
    18. Saghaian, Sayed H. & Nemati, Mehdi & Walters, Cory G. & Chen, Bo, 2017. "Asymmetric Price Volatility Interaction between U.S. Food and Energy Markets," 2017 Annual Meeting, July 30-August 1, Chicago, Illinois 258240, Agricultural and Applied Economics Association.
    19. Zingbagba, Mark & Nunes, Rubens & Fadairo, Muriel, 2020. "The impact of diesel price on upstream and downstream food prices: Evidence from São Paulo," Energy Economics, Elsevier, vol. 85(C).
    20. Eleni Zafeiriou & Garyfallos Arabatzis & Paraskevi Karanikola & Stilianos Tampakis & Stavros Tsiantikoudis, 2018. "Agricultural Commodities and Crude Oil Prices: An Empirical Investigation of Their Relationship," Sustainability, MDPI, vol. 10(4), pages 1-11, April.
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    22. Sukcharoen, Kunlapath & Leatham, David J., 2017. "Hedging downside risk of oil refineries: A vine copula approach," Energy Economics, Elsevier, vol. 66(C), pages 493-507.

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