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Contracting and Price Adjustment in Commodity Markets: Evidence from Copper and Oil

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  • Hubbard, R Glenn
  • Weiner, Robert J

Abstract

This paper analyzes price adjustment in markets where trade takes place through both spot-market and long-term-contract transactions. The authors develop a model illustrating the role of the resulting two-price system in describing price adjustment to transitory shocks; persistence effects of these shocks on prices depends on, inter alia, the fraction of trades carried out through contracts. The model is tested on price data from the world copper and crude oil markets. Econometric tests of the model provide support for the hypothesis that the increase in the importance of spot markets in copper and oil is associated with an increase in the speed of adjustment of spot prices to supply and demand disturbances. Copyright 1989 by MIT Press.

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  • Hubbard, R Glenn & Weiner, Robert J, 1989. "Contracting and Price Adjustment in Commodity Markets: Evidence from Copper and Oil," The Review of Economics and Statistics, MIT Press, vol. 71(1), pages 80-89, February.
    • Handle: RePEc:tpr:restat:v:71:y:1989:i:1:p:80-89
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    Cited by:

    1. Celso Brunetti, Bahattin Buyuksahin, Michel A. Robe, and Kirsten R. Soneson, 2013. "OPEC "Fair Price" Pronouncements and the Market Price of Crude Oil," The Energy Journal, International Association for Energy Economics, vol. 0(Number 4).
    2. Claudio Agostini, 2005. "Testing for Market Power under the Two-Price System in the U.S. Copper Industry," ILADES-UAH Working Papers inv159, Universidad Alberto Hurtado/School of Economics and Business.
    3. Hubbard, R Glenn & Weiner, Robert J, 1992. "Long-Term Contracting and Multiple-Price Systems," The Journal of Business, University of Chicago Press, vol. 65(2), pages 177-198, April.
    4. Figuerola-Ferretti, Isabel & Gilbert, Christopher L., 2001. "Price variability and marketing method in non-ferrous metals: : Slade's analysis revisited," Resources Policy, Elsevier, vol. 27(3), pages 169-177, September.
    5. Pinelopi K. Goldberg & Rebecca Hellerstein, 2009. "How rigid are producer prices?," Staff Reports 407, Federal Reserve Bank of New York.

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