[1] Univ ICESI, Dept Accounting & Financial Studies, Cali, Colombia
[2] Univ ICESI, Dept Econ, Res Ctr Econ & Finance Cienfi, Cali, Colombia
[3] Univ ICESI, Cienfi, Cali, Colombia
[4] Univ ICESI, Fac Ingn, Dept Tecnol Informac & Comunicac, Cali, Colombia