Juan Diego Calle studied Industrial Engineering and Finance at the University of Miami; he is also a graduate of Harvard Business School's Owner President Management Program.<ref>[http://www.straat.co/team.html Straat.co]</ref> | Juan Diego Calle studied Industrial Engineering and Finance at the University of Miami; he is also a graduate of Harvard Business School's Owner President Management Program.<ref>[http://www.straat.co/team.html Straat.co]</ref> |