The aim of this paper is to check if there is a relation between the wheat prices of the Argentinian and the International market, if these markets are integrated in space. For that, it was used as time reference the period from January, 1994 to April, 2009. Unit root tests, Granger causality,...

This study investigates the importance of spatial dependence and inter-relations due to geographic localization over the supply response to agricultural prices, in the Brazilian Center-West. Specifically, we evaluated: the spatial error dependence in the input demand and output supply; and, the...

It is intended to verify the relations between input and products concerning to replaceability or complementarity, as well as the impacts of monthly variations on product prices (milk and meat) and input (fuels, work, concentrate) in the production system in Brazil that possess cows of 2.000 to...