Análise económica e econométrica da oferta da castanha de cajú, no distrito de Manjacaze, no período 2003 à 2012 província de Gaza

Abstract

Cashew nut production in Mozambique contributes significantly to the livelihoods of farmers through livelihood of farmers through sale or exchange with other products and to the economy economy through exports, as well as being a source of nutritious food for families. families. This paper aims to econometrically and econometrically analyze the supply of cashew nuts in Manjacaze district in the period between 2003 and 2012. For the achievement of the results the ordinary least squares method was used and the theoretical model of the supply where the quantities of cashew nuts in tons were explained from the price, chemical treatment and number of trees planted. The data were obtained from the SDAEManjacaze and INCAJU - Gaza. In the analysis of the results it was verified the presence of multicollinearity between the number of plants and price which dictated the adoption of a multiplicative model. model. The coefficient of determination and the F test at a significance level of 1% validated the model. level validated the model. Parametric tests indicated that sales price and chemical treatment were significant at 5% and were significant at 5% and the quantities of existing cashew trees were significant at 10%. significant at 10%. Analysis of the graphs, growth rates, partial correlation and the standardized coefficient showed that chemical treatment was the variable that most influenced supply. The three coefficients of the explanatory variables were elastic, The three coefficients of the explanatory variables were elastic, indicating that as production increased costs rose slowly, confirming the viability of the The three coefficients of the explanatory variables were elastic, indicating that as production increased costs rose slowly, confirming the viability of the strategy of promoting Brazil nut production by subsidizing the chemical treatment. The study concluded that 86% of cashew nuts depends on the price, the chemical treatment and the number of plants and the supply responded more to the chemical treatment than the price and the number of plants and was sensitive to price, chemical treatment and the number of plants. (TRADUÇÃO NOSSA)