Ajustamento assimétrico de preços na cadeia produtiva do feijão no estado de Goiás
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Data
2013-08-23
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Universidade Federal de Goiás
Resumo
Beans are traditional Brazilian staple food, and relatively cheap source of protein,
minerals, vitamins and fiber for the low-income population. Production chain has
barriers, especially in the marketing system, the lack of price transparency and
information asymmetry. Considering the various agents in the bean production chain in
the state of Goiás (producers, wholesalers and retailers), this study sought to test
whether the adjustment of prices in this chain is asymmetric, i.e., if the price increases
are transmitted more quickly and greater magnitude than the decreases. Moreover, as a
specific objective, this study sought to examine the relationship between prices along
the bean production chain through the autoregressive model and calculating sales
margins. The results infer that the price adjustment is asymmetric along the production
chain in the state of Goiás, being the main cause of this wholesale market failure. Thus,
consumers do not benefit from the decrease in producer prices. These results are
relevant to the implementation of sectoral policies related to food security, especially
the low-income population, which undertakes a higher percentage of their income on
buying food products.
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SOUZA, Rodrigo da Silva. Ajustamento assimétrico de preços na cadeia produtiva do feijão no estado de Goiás. 2013. 86 f. Dissertação (Mestrado em Agronegócio) - Universidade Federal de Goiás, Goiânia, 2013.