Prof. Dr. Hédi Essid is a Chairman of the Economics and Business Analytics Department and a Chairman of the Doctoral and Habilitation Committee at Tunis Business School (Tunis University). He was a Visiting Associate Professor at Lille University for many times. He received his Ph.D. in Economics from Lille University of Sciences and Technologies (France). His research interests include the Productivity and efficiency analysis. He has published in many peer-reviewed journals, e.g. The International Journal of Management Science (Omega), Socio-Economic Planning Sciences, Economics of Education Review, Applied Economics, Expert Systems With Applications.