Federico Etro is Professor of Economics at the University of Florence. He previously taught at the Ca’ Foscari University of Venice, the University of Milan, the Luiss University of Rome and the University of Edinburgh. Etro has published numerous articles in economic journals such as the American Economic Review, American Economic Journal, European Economic Review, International Economic Review, Economic Journal and articles on art markets and the economics of art history on journals such as the Journal of Economic History, Journal of Cultural Economics, Journal of Economic Behavior and Organization and many others. He has written books for Springer on “Competition, Innovation, and Antitrust” (2007) and “Endogenous Market Structures and the Macroeconomy” (2009). He has been editor of Research in Economics and is currently editor of the Journal of Cultural Economics. His theoretical and empirical research on the economics of arts is focused on understanding economic and institutional factors that have affected the evolution of art history across time and space. David Walter Galenson (born June 20, 1951) is a professor in the Department of Economics and the College at the University of Chicago, and a research associate of the National Bureau of Economic Research. He has been a visiting professor at the California Institute of Technology, Massachusetts Institute of Technology, the University of Texas at Austin, the École des Hautes Études en Sciences Sociales in Paris, and the American University of Paris. He is the Academic Director of the Center for Creativity Economics, which was inaugurated in 2010 at the Universidad del CEMA, Buenos Aires. He is the son of economists Marjorie and Walter Galenson. He attended Phillips Academy.He then studied at Harvard College for both his undergraduate and graduate education, completing his PhD in 1979.