Dr. Sunil Kumar is currently serving as an Associate Professor of Economics at the Faculty of Economics, South Asian University (SAU), New Delhi. He is also associated with Punjab School of Economics, Guru Nanak Dev University, Amritsar. He has more than 20 years of teaching experience in subjects related to Quantitative Methods, Macroeconomics, and Econometrics. His research interests include data envelopment analysis, stochastic frontier analysis, banking efficiency and industrial productivity. He has published more than three dozen research papers in journals of national and international repute including Economic Change and Restructuring, Macroeconomics and Finance in Emerging Market Economies, the American Journal of Accounting and Finance, International Journal of Productivity and Performance Management, International Review of Economics, Benchmarking, Global Business Review, etc. He also wrote a research book entitled, “Productivity and Factor Substitution: Theory and Analysis”. His professional memberships include the Indian Society of Regional Science and Indian Economic Association.   Dr. Rachita Gulati is an Assistant Professor in Economics at Department of Humanities and Social Sciences, Indian Institute of Technology (IIT) Roorkee, Uttarakhand. Before joining IIT Roorkee, she was a core faculty of Indian Institute of Management (IIM) Kashipur, Uttarakhand. Her teaching interests include Applied Econometrics, Managerial Economics, and Quantitative Methods for Economists and her research interests include Efficiency and Productivity Analysis using Frontier Approaches and the Indian Banking Sector. Her research work focuses on financial economics in India and bears important policy implications for further reforms in the Indian banking sector. She has published research papers in journals of national and international repute. In 2008, she received the Best Paper Award from the Global Academy of Business andEconomics Research (GABER), USA.