The topic of his Doctoral Thesis: "How do supervisors perceive employee promised contributions? An inducement-contribution model of supervisor's reciprocation decisions?". Members of the committee included: Vice President for Academic Affairs Nugzar Skhirtladze, Dean of Caucasus School of Business Buba Lezhava, Professor of Georgia State University Bijan Fazlollahi and Associate Professor Lisa Lambert.

Paata Brekashvili's PhD defense was successful.