Relacionamento de preços dos principais produtos comercializados entre o mercado produtor de Tianguá e mercados atacadistas de Fortaleza e Teresina

Abstract

This paper analyzes the price relationship of main nproducts commercialized between the producer market of Tianguá in Serra of Ibiapaba/CE and the wholesale markets of Fortaleza/CE and Teresina/PI using the weekly price series obtained by Ceasa. For this, tests were made of unit roots and the VAR Model was used with the application of Granger Causality Test/ the Wald for blocks exogeinity Test, the Variance Decomposition and Impulse Response. The results show that in the passion fruit and tomato markets, Fortaleza showed as independent market, with strong influence over Ibiapaba and Teresina markets. However, in the cucumber market, Teresina showed as independent market with strong influence over Ibiapaba and Fortaleza markets.