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A dynamic analysis of causality between prices of corn, crude oil and ethanol

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  • Papież, Monika

Abstract

The objective of the paper is to analyse causality between prices of corn, crude oil and ethanol. The analysis conducted in this paper is a dynamic one, and the data used consist of weekly futures prices of crude oil, corn, and ethanol from January 5, 2007 till April 11, 2014. The assessment of causal links between prices of corn, crude oil and ethanol is carried out with the use of rolling regression applied to augmented-VAR framework proposed by Toda and Yamamoto (1995). The application of the rolling regression procedures into the modified Wald (MWALD) causality test allows for the investigation of the persistence of stability in causal relations between analysed prices. The results obtained indicate that the linkages between energy prices and agricultural commodity prices change in the period analysed. The results of Granger causality tests reveal that in the analysed period the price of corn influences the price of energy (crude oil and ethanol). Also crude oil prices influence corn prices and ethanol prices. However, the influence of ethanol prices on crude oil prices and corn prices has not been observed.

Suggested Citation

  • Papież, Monika, 2014. "A dynamic analysis of causality between prices of corn, crude oil and ethanol," MPRA Paper 56540, University Library of Munich, Germany.
  • Handle: RePEc:pra:mprapa:56540
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    File URL: https://mpra.ub.uni-muenchen.de/56540/1/MPRA_paper_56540.pdf
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    More about this item

    Keywords

    Granger causality; rolling regression; Toda -Yamamoto tests; commodity prices.;

    JEL classification:

    • C32 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes; State Space Models
    • Q13 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture - - - Agricultural Markets and Marketing; Cooperatives; Agribusiness
    • Q41 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy - - - Demand and Supply; Prices

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