Causalidade e assimetria na transmissão de preços de soja e derivados no Brasil nos anos oitenta
DOI:
https://doi.org/10.1590/1980-53572115dagbKeywords:
Price transmission, Causality, Asymmetry, Soybean industryAbstract
The objective of this paper is to analyse the relationships between the prices of soybean and their products at various market levels. The Sims's causality test and the Houck's asymmetry test were applied and the elasticities of price transmission were estimated. The international prices were shown to lead the domestic prices. At the domestic markets, the wholesale prices tend to lead the other prices. The time lags for price transmission was between one and four months. The elasticities of price transmission showed integral transmission (unitary elasticity) between the various market levels, except between the international prices and the domestic prices that were greater than one. The asymmetry test indicated that the various market levels respond more to price increases than to decreases.
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Copyright (c) 1991 Danilo Rolim Dias de Aguiar, Geraldo Sant'Ana de Camargo Barros
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