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Asimetrías en la transmisión de precios en el sector del tomate en España

Author

Listed:
  • Ben Kaabia, Monia
  • Gil Roig, Jose Maria

Abstract

RESUMEN - El objetivo de este trabajo consiste en analizar el proceso de transmisión de precios a lo largo de la cadena comercial en el sector del tomate en España. Para ello se han considerado el precio percibido por el productor y el pagado por el consumidor. El enfoque metodológico adoptado se basa en la estimación de un Vector de Corrección del Error con umbrales. Los resultados indican que, a largo plazo, los dos precios son homogéneos. Sin embargo, en el corto plazo las reacciones de precios, tanto en velocidad como en magnitud, son asimétricas. Es más, los resultados indican que los detallistas se benefician (en el sentido de que son capaces de aumentar el margen comercial) de cualquier shock, ya sea positivo o negativo, que afecte tanto a las condiciones de oferta como de demanda. Esta capacidad de actuación sobre los márgenes comerciales es uno de los principales determinantes de los procesos inflacionistas en este sector. SUMMARY - This paper aims to investigate the non-linear adjustments between farm and retail prices in the tomato sector in Spain. The methodology used is based on the multivariate approach to specify and estimate a Threshold Autoregressive Model. The results indicate that, in the long run, price transmission is perfect. In the short-run, price adjustments between the farm and the retail levels are asymmetric. Retailers always benefit (in terms of increasing marketing margins) from positive and negative shocks affecting supply or demand conditions. Moreover, marketing margins have been found to be main determinants of inflation in the Spanish tomato sector.

Suggested Citation

  • Ben Kaabia, Monia & Gil Roig, Jose Maria, 2008. "Asimetrías en la transmisión de precios en el sector del tomate en España," Economia Agraria y Recursos Naturales, Spanish Association of Agricultural Economists, vol. 8(01), pages 1-25.
  • Handle: RePEc:ags:earnsa:37189
    DOI: 10.22004/ag.econ.37189
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