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The Theory of Storage and Price Dynamics of Agricultural Commodity Futures: the Case of Corn and Wheat


  • Guillermo Benavides Perales

    () (Banco de Mexico)


Using a restricted version of the BEKK model it is tested an implication of the theory of storage that supply-and-demand fundamentals affect the price dynamics of agricultural commodities. The commodities under analysis are corn and wheat. An interest-storage-adjusted-spread was used as a proxy variable for supply-and-demand fundamentals to test the aforementioned implication for both commodities. It is also tested the Samuelson hypothesis that spot prices have higher volatility than futures prices. It is found that the interest-storage-adjusted-spread has had a statistically significant positive influence on the spot and futures returns for both commodities. Likewise, the results also show that spot price returns have higher volatility compared to futures price returns which is consistent with the Samuelson hypothesis. The results of the aforementioned tests are consistent with both theories and with the existing literature related to commodity futures.

Suggested Citation

  • Guillermo Benavides Perales, 2010. "The Theory of Storage and Price Dynamics of Agricultural Commodity Futures: the Case of Corn and Wheat," Ensayos Revista de Economia, Universidad Autonoma de Nuevo Leon, Facultad de Economia, vol. 0(1), pages 1-22, May.
  • Handle: RePEc:ere:journl:v:xxix:y:2010:i:1:p:1-22

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    Cited by:

    1. Katunze, Miriam & Kuteesa, Annette & Mujumbi, Theresa & Mahebe, Denis, 2017. "Uganda Warehousing Receipt System: Improving Market Competitiveness and Service Delivery," Research Series 260026, Economic Policy Research Centre (EPRC).
    2. Jean-Francois Carpantier, 2010. "Commodities inventory effect," Working Papers hal-01821158, HAL.
    3. CARPANTIER, Jean-François & DUFAYS, Arnaud, 2012. "Commodities volatility and the theory of storage," CORE Discussion Papers 2012037, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
    4. Vorotnikova, Ekaterina, 2016. "Optimal Storage Capacity Allocation in Grain Merchandizing," 2016 Annual Meeting, February 6-9, 2016, San Antonio, Texas 230128, Southern Agricultural Economics Association.

    More about this item


    Agricultural commodities; BEKK model; multivariate GARCH; Samuelson hypothesis; theory of storage;

    JEL classification:

    • C22 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes
    • G10 - Financial Economics - - General Financial Markets - - - General (includes Measurement and Data)
    • Q14 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture - - - Agricultural Finance


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