1. Department of Economics and Administration, Federal University of Mato Grosso do Sul, Cidade Universitária, Caixa Postal 549, CEP 79070-900 Campo Grande, MS, Brazil
2. University of São Paulo, School of Economics, Business and Accounting, Knowledge Center in Agro-Industrial Studies - PENSA, Av. Prof. Luciano Gualberto 908, sala C14, São Paulo Brazil