Acknowledgments

We would like to offer thanks for the comments and suggestions from: the FSU experimental social sciences (XS/FS) readings group, the participants at the Charles Plott symposium at Caltech, and participants at the Southeast Experimental Retreat. Charles Plott has been particularly gracious and helpful. Furthermore, we thank the John and Hallie Quinn chair, the Charles and Persis Rockwood Fellowship, and the L. Charles Hilton Center for support. As always, any remaining errors are strictly our own. The authors declare that they have no competing interests.