Charles A. Holt is the A. Willis Robertson Professor of Political Economy at the University of Virginia. His books include Experimental Economics (with Douglas D. Davis), Markets, Games, and Strategic Behavior, and Quantal Response Equilibrium (with Jacob K. Goeree and Thomas R. Palfrey) (all Princeton). Erica R. Sprott is a doctoral student at the Harvard Kennedy School and a National Science Foundation Graduate Research Fellow.