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Deregulation of the Australian Wheat Export Market: What Happened to Wheat Prices?


  • Curwen, Reece
  • Mugera, Amin W.
  • White, Benedict


This paper investigates whether deregulation of the Australian wheat export market induced a structural change in the price data generation process. We examine the unit root properties of Western Australian wheat prices by testing for the possibility of single and double structural breaks in the price series. Daily prices for the period 20th of May 2003 to 14th of September 2010 are used. We find that the wheat price series has a unit root with two structural breaks but neither break coincided with the time when the Wheat Export Marketing Act 2008 came into effect on 1 July 2008. We conclude that change in local market behaviour would have started prior to actual deregulation with subsequent effect on local price.

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  • Curwen, Reece & Mugera, Amin W. & White, Benedict, 2011. "Deregulation of the Australian Wheat Export Market: What Happened to Wheat Prices?," Working Papers 102023, University of Western Australia, School of Agricultural and Resource Economics.
  • Handle: RePEc:ags:uwauwp:102023

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    References listed on IDEAS

    1. Francisco Alpizar & Fredrik Carlsson & Olof Johansson-Stenman, 2008. "Does context matter more for hypothetical than for actual contributions? Evidence from a natural field experiment," Experimental Economics, Springer;Economic Science Association, vol. 11(3), pages 299-314, September.
    2. Johansson-Stenman, Olof & Konow, James, 2009. "Fairness Concerns in Environmental Economics - Do They Really Matter and If So How?," Working Papers in Economics 398, University of Gothenburg, Department of Economics.
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    More about this item


    deregulation; unit root; structural breaks; wheat price; Agribusiness; Demand and Price Analysis; Marketing; Q13; Q18;

    JEL classification:

    • Q13 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture - - - Agricultural Markets and Marketing; Cooperatives; Agribusiness
    • Q18 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture - - - Agricultural Policy; Food Policy

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