[1] Inst Politecn Leiria, Escola Super Tecnol & Gestao, Leiria, Portugal
[2] Indiana Univ, Kelley Business Sch, Bloomington, IN 47405 USA
[3] Univ Texas Dallas, Sch Management, Richardson, TX 75083 USA
[4] Univ Sul Santa Catarina, Dept Ciencias Sociais Aplicadas, Santa Catarina, SC, Brazil