The objective of this work was to evaluate, by means of the exchange rate, the profitability of two products directed toward the domestic market and two export products. Other objective was to identify productivity growth compensated the decrease of prices. The geometric rates of the production, area and productivity growth were estimated. The exchange rate was estimated by the relation between the index of the inputs prices and the index of the product prices. The results show a great trend of deterioration of the exchange terms for all the analyzed products. Evidenced that these effects more was been accented for rice and maize. Such behavior associates it the fact of the rice cultures and of maize to be destined to the domestic market, its demands have been not elastic in relation to the coffee and soy cultures.


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