Carlos Alós-Ferrer graduated in Mathematics at the University of Valencia (Spain) in 1992 and completed his Ph.D. in Economics at the University of Alicante (Spain) in 1998. He is a Full Professor of Microeconomics at the University of Cologne (Germany), and has previously worked at the Universities of Alicante (Spain), Vienna (Austria), Salamanca (Spain), and Konstanz (Germany). Since 2012, he is the speaker of the interdisciplinary Research Unit “Psychoeconomics” of the German Research Foundation. His specializations are in game theory, mathematical economics, and behavioral microeconomics (both theoretical and experimental), and he also works and publishes in psychology and neuroscience. Klaus Ritzberger graduated in Economics at the University of Vienna (Austria) in 1982 and completed his Ph.D. at the same university in 1987. He has been at the Institute for Advanced Studies (IHS) in Vienna for about thirty years, with intermissions abroad. He has been chairman ofthe Department of Economics and Finance for seven years and then became Lead Economist. He is a faculty member of the Vienna Graduate School of Finance (VGSF) since its foundation. His specializations are in game theory, financial economics, microeconomics, and general equilibrium theory.