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Nonlinearity and asymmetric vertical transmission in U.S. fresh vegetable prices

Author

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  • Tavernier, Edmund M.
  • Onyango, Benjamin M.
  • Hossain, Ferdaus

Abstract

The presence of nonlinearity, threshold behavior and cointegration under asymmetric adjustment are investigated in the vertical transmission of shocks between farm and retail prices for vegetable products in the U.S. Empirical results confirm the presence of nonlinearity and threshold behavior in the adjustment processes of farm and retail prices. Retail and farm prices are found to be cointegrated, implying long-run equilibrium relation between the two prices. However, for four of the five products included in this study, price transmissions are characterized by asymmetric adjustments. While retail prices adjust quickly in response to shocks that reduce the farm-retail spread below a certain threshold, it hardly responds to shocks that widen the spread. Farm prices are mostly unresponsive to retail market movements. Causation runs from farm to retail prices.

Suggested Citation

  • Tavernier, Edmund M. & Onyango, Benjamin M. & Hossain, Ferdaus, 2010. "Nonlinearity and asymmetric vertical transmission in U.S. fresh vegetable prices," 28th West Indies Agricultural Economic Conference/2009 Barbados National Agricultural Conference, July 2009, Barbados 187969, Caribbean Agro-Economic Society.
    • Handle: RePEc:ags:cars09:187969
    DOI: 10.22004/ag.econ.187969
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