1. Department of Economics, University of Windsor, Ontario, Canada
2. Programa de Pós-Graduação em Economia, Universidade Federal do Ceará, Fortaleza, Brazil
3. Psychology Department, Nipissing University, Nipissing, Canada
4. Department of Psychology, University of the Fraser Valley, Abbotsford, Canada
5. Neuropsychopharmacology and Biopsychology Unit, University of Vienna, Vienna, Austria
6. Social Neuroendocrinology Lab, Nipissing University, Nipissing, Canada
7. São Paulo School of Economics, Fundacão Getulio Vargas, São Paulo, Brazil