Asymmetric price transmission in the Spanish lamb sector
1 University of Zaragoza, Zaragoza Spain
2 CREDA-UPC-IRTA, Barcelona, Spain
Corresponding author: José M. Gil, CREDA-UPC-IRTA, Edifici ESABParc Mediterrani de la Tecnologia Av. del Canal Olimpic s/n, 08860-Castelldefels (Barcelona), Spain. Telephone: +34 9355 21210. Fax: +34 9355 21121. E-mail: chema.gil{at}upc.edu
Received June 2006; Revision received January 2007. This article investigates the non-linear adjustment between farm and retail prices in the lamb sector in Spain, using a three-regime Threshold Autoregressive Model. The results indicate that, in the long run, price transmission is perfect and any supply or demand shocks are fully transmitted along the marketing chain. In the short run, price adjustments between the farm and the retail levels are asymmetric and reveal a demand-pull transmission mechanism. On the other hand, retailers benefit from any shock, whether positive or negative, that affects supply or demand conditions.
Keywords: asymmetries, non-linear adjustments, lamb prices, Spain
JEL classification: C32, L11, Q11, Q13