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On the Comovement of Commodity Prices

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  • Chunrong Ai
  • Arjun Chatrath
  • Frank Song
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    Abstract

    We present strong evidence against the excess-comovement hypothesis—that the prices of commodities move together beyond what can be explained by fundamentals. Prior studies employ broad macroeconomic indicators to explain common price movements, and potentially correlated fundamentals are not controlled for. We use inventory and harvest data to fit a partial equilibrium model that more effectively captures the variation in individual prices. The model explains the majority of the comovements among commodities with high price correlation, and all of the comovements among those with marginal price correlation. Common movements in supply factors appear to play an important role in the observed comovements in commodity prices. Copyright 2006, Oxford University Press.

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    File URL: http://hdl.handle.net/10.1111/j.1467-8276.2006.00880.x
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    Bibliographic Info

    Article provided by Agricultural and Applied Economics Association in its journal American Journal of Agricultural Economics.

    Volume (Year): 88 (2006)
    Issue (Month): 3 ()
    Pages: 574-588

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    Handle: RePEc:oup:ajagec:v:88:y:2006:i:3:p:574-588

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    Cited by:
    1. Baffes, John, 2007. "Oil spills on other commodities," Resources Policy, Elsevier, vol. 32(3), pages 126-134, September.
    2. Natanelov, Valeri & Alam, Mohammad J. & McKenzie, Andrew M. & Van Huylenbroeck, Guido, 2011. "Is there co-movement of agricultural commodities futures prices and crude oil?," Energy Policy, Elsevier, vol. 39(9), pages 4971-4984, September.
    3. Yannick Le Pen & Benoît Sévi, 2013. "Futures trading and the excess comovement of commodity prices," Working Papers 2013-019, Department of Research, Ipag Business School.
    4. Gardebroek, Cornelis & Hernandez, Manuel A. & Robles, Miguel, 2013. "Market interdependence and volatility transmission among major crops," 2013 Annual Meeting, August 4-6, 2013, Washington, D.C. 150119, Agricultural and Applied Economics Association.
    5. repec:ipg:wpaper:19 is not listed on IDEAS
    6. Baffes, John & Haniotis, Tassos, 2010. "Placing the 2006/08 commodity price boom into perspective," Policy Research Working Paper Series 5371, The World Bank.
    7. Massol, O. & Banal-Estanol, A., 2012. "Export diversification and resource-based industrialization: the case of natural gas," Working Papers 12/01, Department of Economics, City University London.
    8. Natanelov, Valeri & Alam, Mohammad Jahangir & McKenzie, Andrew M. & Van Huylenbroeck, Guido, 2011. "Is There Co-Movement of Agricultural Commodities Futures Prices and Crude Oil?," 2011 International Congress, August 30-September 2, 2011, Zurich, Switzerland 114626, European Association of Agricultural Economists.
    9. Colin A. Carter & Gordon C. Rausser & Aaron Smith, 2011. "Commodity Booms and Busts," Annual Review of Resource Economics, Annual Reviews, vol. 3(1), pages 87-118, October.
    10. Jaime Casassus & Peng Liu & Ke Tang, 2011. "Relative Scarcity of Commodities with a Long-Term Economic Relationship and the Correlation of Futures Returns," Documentos de Trabajo 404, Instituto de Economia. Pontificia Universidad Católica de Chile..
    11. Le Pen, Yannick & Sévi, Benoît, 2010. "Revisiting the excess co-movements of commodity prices in a data-rich environment," Economics Papers from University Paris Dauphine 123456789/6800, Paris Dauphine University.
    12. Scott H. Irwin & Dwight R. Sanders, 2011. "Index Funds, Financialization, and Commodity Futures Markets," Applied Economic Perspectives and Policy, Agricultural and Applied Economics Association, vol. 33(1), pages 1-31.
    13. Baffes, John, 2009. "More on the energy / non-energy commodity price link," Policy Research Working Paper Series 4982, The World Bank.

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