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Integração e transmissão de preços entre os mercados de trigo argentino e internacional

Author

Listed:
  • Coronel, Daniel Arruda
  • Amorim, Airton Lopes
  • Sousa, Eliane Pinheiro de
  • Lima, Joao Eustaquio de

Abstract

The aim of this paper is to check if there is a relation between the wheat prices of the Argentinian and the International market, if these markets are integrated in space. For that, it was used as time reference the period from January, 1994 to April, 2009. Unit root tests, Granger causality, Johansen cointegration, estimation of the impulse response function, decomposition of error variation and estimation and analysis of the error correction model were used. The results indicated that variations in the international prices of wheat were almost completely transmitted for the run long. However, it is not possible to affirm that the Argentinian and the International markets are perfectly integrated even if they have a higher transmission of prices This is because the hypothesis of perfect integration between the markets is rejected when restrictions were imposed to the coefficients related to the long run. It was also noticed through the exogeneity test that the Argentinian wheat prices react to transient imbalances occurred in prices from the international market. Therefore, wheat prices in international markets affect the price levels in Argentina.

Suggested Citation

  • Coronel, Daniel Arruda & Amorim, Airton Lopes & Sousa, Eliane Pinheiro de & Lima, Joao Eustaquio de, 2010. "Integração e transmissão de preços entre os mercados de trigo argentino e internacional," Working Papers in Applied Economics 114463, Universidade Federal de Vicosa, Departamento de Economia Rural.
    • Handle: RePEc:ags:ufvdwp:114463
    DOI: 10.22004/ag.econ.114463
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