Bikas K. Chakrabarti is a Senior Professor of Theoretical Condensed Matter Physics at the Saha Institute of Nuclear Physics and a visiting Professor of Economics at the Indian Statistical Institute. He has research interests in statistical physics, condensed matter physics, computational physics and econophysics. Anirban Chakraborti is an Associate Professor at the Quantitative Finance Group, École Centrale Paris. He has research interests in statistical physics, econophysics and quantum physics. Satya R. Chakravarty is a Professor in the Economic Research Unit of the Indian Statistical Institute, Kolkata. His main areas of research interest are welfare economics, public economics, mathematical finance, industrial organization and game theory. Arnab Chatterjee is a postdoctoral researcher at Aalto University, Finland. He has research interests in statistical physics and its application to condensed matter and social sciences.