1. Associate Professor, Center for Food & Agribusiness, Austral University, 1950 Paraguay Street, Rosario city, Santa Fe Province 2000, Argentina.
2. Associate Professor, Department of Mathematics, Austral University, 1950 Paraguay Street, Rosario city, Santa Fe Province 2000, Argentin.
3. Full Professor, Escuela de Economía y Administración, Universidad Industrial de Santander, carrera 27, calle 9, Ciudad Universitaria. Bucaramanga city, Santander Province, Colombia.
4. Assistant Professor, Center for Food & Agribusiness, Austral University, 1950 Paraguay Street, Rosario city, Santa Fe Province 2000, Argentina.