First Author:   Aviral Kumar Tiwari ICFAI University Tripura, Tripura, India aviral.eco@gmail.com   Kamalghat, Sadar, West Tripura, Pin-799210       www.aviralkumartiwari.weebly.com Second Author: Olaolu Richard Olayeni Department of Economics, Obafemi Awolowo University, Nigeria rolayeni@oauife.edu.ng         http://