Spot and futures commodity markets and the unbiasedness hypothesis - evidence from a novel panel unit root test
A controversial view of the evolution of commodity markets is that the engagement of speculative capital arguably introduces volatility and price movements unrelated to changes in traditional demand and supply factors. Thus, the efficiency of spot and futures markets is an important topic in this context, as the price of a futures contract in the current period should be an unbiased estimator of next periodÂ´s spot price under the joint assumption of risk neutrality and rationality. In this vein, the present study contributes to the literature by applying the novel panel unit root test provided by Demetrescu and Hanck (2012) which simultaneously allows for cross-sectional dependence and unconditional heteroskedasticity. Our findings show that most spot and futures markets for commodities were efficient until the turn of the millennium, but appear to be inefficient thereafter owing to an increase in volatility, which might be attributed to the intense engagement of speculation in commodity markets.
Volume (Year): 32 (2012)
Issue (Month): 2 ()
|Contact details of provider:|| |
References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Chevillon, Guillaume & Rifflart, Christine, 2009.
"Physical market determinants of the price of crude oil and the market premium,"
Elsevier, vol. 31(4), pages 537-549, July.
- Chevillon, Guillaume & Rifflart, Christine, 2007. "Physical Market Determinants of the Price of Crude Oil and the Market Premium," ESSEC Working Papers DR 07020, ESSEC Research Center, ESSEC Business School.
- Christopher L. Gilbert, 2010. "How to Understand High Food Prices," Journal of Agricultural Economics, Wiley Blackwell, vol. 61(2), pages 398-425.
- Beckmann, Joscha & Belke, Ansgar & Dobnik, Frauke, 2012. "Cross-section dependence and the monetary exchange rate model – A panel analysis," The North American Journal of Economics and Finance, Elsevier, vol. 23(1), pages 38-53.
- Beckmann, Joscha & Belke, Ansgar & Dobnik, Frauke, 2011. "Cross-section Dependence and the Monetary Exchange Rate Mode – A Panel Analysis," Ruhr Economic Papers 252, RWI - Leibniz-Institut für Wirtschaftsforschung, Ruhr-University Bochum, TU Dortmund University, University of Duisburg-Essen.
- Joscha Beckmann & Ansgar Belke & Frauke Dobnik, 2011. "Cross-Section Dependence and the Monetary Exchange Rate Model: A Panel Analysis," Discussion Papers of DIW Berlin 1119, DIW Berlin, German Institute for Economic Research.
- Anindya Banerjee & Massimiliano Marcellino & Chiara Osbat, 2004. "Some cautions on the use of panel methods for integrated series of macroeconomic data," Econometrics Journal, Royal Economic Society, vol. 7(2), pages 322-340, December.
- Anindya Banerjee & Massimiliano Marcellino & Chiara Osbat, "undated". "Some Cautions on the Use of Panel Methods for Integrated Series of Macro-Economic Data," Working Papers 170, IGIER (Innocenzo Gasparini Institute for Economic Research), Bocconi University.
- Banerjee, A. & Marcellino, M. & Osbat, C., 2000. "Some Cautions on the Use of Panel Methods for Integrated Series of Macro-economic Data," Economics Working Papers eco2000/20, European University Institute.
- Dwight R. Sanders & Scott H. Irwin, 2010. "A speculative bubble in commodity futures prices? Cross-sectional evidence," Agricultural Economics, International Association of Agricultural Economists, vol. 41(1), pages 25-32, 01.
- Sanders, Dwight R. & Irwin, Scott H. & Merrin, Robert P., 2009. "A Speculative Bubble in Commodity Futures Prices? Cross-Sectional Evidence," 2009 Conference, April 20-21, 2009, St. Louis, Missouri 53050, NCCC-134 Conference on Applied Commodity Price Analysis, Forecasting, and Market Risk Management.
- Joseph V. Balagtas & Matthew T. Holt, 2009. "The Commodity Terms of Trade, Unit Roots, and Nonlinear Alternatives: A Smooth Transition Approach," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 91(1), pages 87-105.
- Goodwin, Barry K. & Holt, Matthew T. & Prestemon, Jeffery P., 2008. "The Commodity Terms of Trade, Unit Roots, and Nonlinear Alternatives: A Smooth Transition Approach," MPRA Paper 9684, University Library of Munich, Germany.
- Cifarelli, Giulio & Paladino, Giovanna, 2010. "Oil price dynamics and speculation: A multivariate financial approach," Energy Economics, Elsevier, vol. 32(2), pages 363-372, March.
- Giulio Cifarelli & Giovanna Paladino, 2008. "Oil price Dynamics and Speculation. A Multivariate Financial Approach," Working Papers - Economics wp2008_15.rdf, Universita' degli Studi di Firenze, Dipartimento di Scienze per l'Economia e l'Impresa.
- M. J. Lombardi & I. Van Robays, 2011. "Do Financial Investors Destabilize the Oil Price?," Working Papers of Faculty of Economics and Business Administration, Ghent University, Belgium 11/760, Ghent University, Faculty of Economics and Business Administration.
- Lombardi, Marco J. & Van Robays, Ine, 2011. "Do financial investors destabilize the oil price?," Working Paper Series 1346, European Central Bank.
- repec:ebl:ecbull:v:3:y:2008:i:26:p:1-11 is not listed on IDEAS
- Im, Kyung So & Pesaran, M. Hashem & Shin, Yongcheol, 2003. "Testing for unit roots in heterogeneous panels," Journal of Econometrics, Elsevier, vol. 115(1), pages 53-74, July.
- Pasaran, M.H. & Im, K.S. & Shin, Y., 1995. "Testing for Unit Roots in Heterogeneous Panels," Cambridge Working Papers in Economics 9526, Faculty of Economics, University of Cambridge.
- Tom Doan, "undated". "IPSHIN: RATS procedure to implement Im, Pesaran and Shin panel unit root test," Statistical Software Components RTS00098, Boston College Department of Economics.
- Kaufmann, Robert K. & Ullman, Ben, 2009. "Oil prices, speculation, and fundamentals: Interpreting causal relations among spot and futures prices," Energy Economics, Elsevier, vol. 31(4), pages 550-558, July.
- Ke Tang & Wei Xiong, 2010. "Index Investment and Financialization of Commodities," NBER Working Papers 16385, National Bureau of Economic Research, Inc.
- M. McAleer & J. M. Sequeira, 2004. "Efficient estimation and testing of oil futures contracts in a mutual offset system," Applied Financial Economics, Taylor & Francis Journals, vol. 14(13), pages 953-962.
- Lorne N. Switzer & Mario El‐Khoury, 2007. "Extreme volatility, speculative efficiency, and the hedging effectiveness of the oil futures markets," Journal of Futures Markets, John Wiley & Sons, Ltd., vol. 27(1), pages 61-84, 01.
- Tim Krehbiel & Lee C. Adkins, 1993. "Cointegration tests of the unbiased expectations hypothesis in metals markets," Journal of Futures Markets, John Wiley & Sons, Ltd., vol. 13(7), pages 753-763, October.
- Huang, Bwo-Nung & Yang, C.W. & Hwang, M.J., 2009. "The dynamics of a nonlinear relationship between crude oil spot and futures prices: A multivariate threshold regression approach," Energy Economics, Elsevier, vol. 31(1), pages 91-98, January. Full references (including those not matched with items on IDEAS)
When requesting a correction, please mention this item's handle: RePEc:ebl:ecbull:eb-12-00122. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (John P. Conley)
If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.
If references are entirely missing, you can add them using this form.
If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.
If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.
Please note that corrections may take a couple of weeks to filter through the various RePEc services.