Chandrima Chakraborty is Assistant Professor of Economics at Vidyasagar University, West Bengal, India. Her research interests include Econometrics and empirical studies on Productivity, Efficiency, Industrial Economics, Gender, Education, Environmental and Health Economics.Dipyaman Pal is Associate Professor of Economics at Bethune College, West Bengal, India. His research interests include Econometrics and empirical studies on Volatility, Productivity, Efficiency, Gender, Environmental and Health Economics.