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Testing For Symmetry In Price Transmission: An Extension Of The Shiller Lag Structure With An Application To Fresh Tomatoes


  • Parrott, Scott D.
  • Eastwood, David B.
  • Brooker, John R.


An empirical model of the price relationship between distribution stages is developed based on the Shiller lag. The assumption of constant returns to scale is relaxed to incorporate changes in the volume of shipments. An iterative GLS methodology is developed to estimate the model. Tests for symmetry, length of adjustment, and the amount of price transmission are outlined. An application using the change in the retail price of tomatoes based on shipping point price changes is described. Results suggest that the supermarket chain does not respond differently to price increases versus decreases at the shipping point level.

Suggested Citation

  • Parrott, Scott D. & Eastwood, David B. & Brooker, John R., 2001. "Testing For Symmetry In Price Transmission: An Extension Of The Shiller Lag Structure With An Application To Fresh Tomatoes," Journal of Agribusiness, Agricultural Economics Association of Georgia, vol. 19(1).
  • Handle: RePEc:ags:jloagb:14688

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    References listed on IDEAS

    1. Conway, Roger K. & Swamy, P. A. V. B. & Yanagida, John F. & Muehlen, Peter von zur, 1984. "The Impossibility of Causality Testing," Agricultural Economics Research, United States Department of Agriculture, Economic Research Service, issue 3.
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    Cited by:

    1. Amikuzuno, Joseph & Donkor, Samuel, 2012. "Border Effects on Spatial Price Transmission between Fresh Tomato Markets in Ghana and Burkina-Faso: Any Case for Promoting Trans-border Trade in West Africa?," 2012 Conference, August 18-24, 2012, Foz do Iguacu, Brazil 126173, International Association of Agricultural Economists.
    2. Amikuzuno, Joseph, 2011. "Border Effects on Spatial Price Transmission between Fresh Tomato Markets in Ghana and Burkina-Faso: Any Case for Promoting Trans-border Trade in West Africa?," 85th Annual Conference, April 18-20, 2011, Warwick University, Coventry, UK 108943, Agricultural Economics Society.
    3. von Cramon-Taubadel, Stephan & Goetz, Linde, 2007. "Asymmetric Price Transmission in the Israeli Citrus Export Sector in the Aftermath of Liberalization," 103rd Seminar, April 23-25, 2007, Barcelona, Spain 9385, European Association of Agricultural Economists.
    4. Amikuzuno, Joseph & Ihle, Rico, 2010. "Seasonal Asymmetric Price Transmission in Ghanaian Tomato Markets: Adapting Johansen’s Estimation Method," 2010 AAAE Third Conference/AEASA 48th Conference, September 19-23, 2010, Cape Town, South Africa 96814, African Association of Agricultural Economists (AAAE);Agricultural Economics Association of South Africa (AEASA).
    5. Götz, Linde & von Cramon-Taubadel, Stephan & Kachel, Yael, 0. "Vertical Price Transmission in the International Fresh Fruit and Vegetable Supply Chain: Israeli Grapefruit Exports to the EU after Export Liberalisation," Quarterly Journal of International Agriculture, Humboldt-Universität zu Berlin, vol. 53.
    6. Amikuzuno, Joseph, 2011. "Border effects on spatial price transmission between fresh tomato markets in Ghana and Burkina-Faso: Any case for promoting trans-border trade in West Africa?," IAMO Forum 2011: Will the "BRICs Decade" Continue? – Prospects for Trade and Growth 9, Leibniz Institute of Agricultural Development in Central and Eastern Europe (IAMO).
    7. Pede, Valerien O. & Valera, Harold Glenn A. & Alam, Mohammad Jahangir & McKenzie, Andrew M., 2013. "Nonlinearities in Regional Rice Prices in the Philippines: Evidence from a Smooth Transition Autoregressive (STAR) Approach," 2013 Annual Meeting, August 4-6, 2013, Washington, D.C. 150246, Agricultural and Applied Economics Association.


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