Vili Lehdonvirta is Professor of Economic Sociology and Digital Social Research at the Oxford Internet Institute at the University of Oxford. A former software developer, he is the coauthor of Virtual Economies: Design and Analysis (MIT Press).

Edward Castronova is Professor of Communications and Professor of Cognitive Science at Indiana University. He is the author of Synthetic Worlds: The Business and Culture of Online Games and Exodus to the Virtual World: How Online Fun Is Changing Reality.