Analysis of the evolution of corn productivity in selected states in Brazil for the years 2001 and 2011

This study aims to identify the productivity of corn, for the years 2001 and 2011, the states that have higher production. The methodology used is the exploratory analysis of spatial data (ESDA) to check for local and global clusters with high production efficiency in the production of this cereal. The data used were the productivity of all municipalities of Paraná, Rio Grande do Sul, São Paulo, Goiás, Minas Gerais, Santa Catarina, Mato Grosso, Mato Grosso do Sul and Bahia. The data for the calculation of productivity - the amount and planted area - were collected from the Municipal Agricultural Research (PAM) of IBGE. The analysis allows to observe over the years the presence of efficient clusters which contribute to additional parcels market gains this grain, which contributes to the development of agribusiness in the Brazilian economy. In this context, the study concludes that there is efficiency in production clusters with high productivity in maize crop in the states that stand out as major producers of maize in Brazil