Expansion of the agricultural frontier related to the Brazilian soybean and corn production using a Data Envelopment Analysis model.

José Eduardo Holler Branco1, Paulo Nocera Alves Junior1, Daniela Bacchi Bartholomeu1, José Vicente Caixeta Filho1, José César Cruz Júnior2 and Cassiano Bragagnolo2, (1)Luiz de Queiroz College of Agriculture - University of São Paulo, Economics, Administration and Sociology, Piracicaba, Brazil, (2)Federal University of São Carlos, Economics, Sorocaba, Brazil