JAMES M. WALKER is professor of economics, former chair of the Department of Economics, former codirector of the Vincent and Elinor Ostrom Workshop in Political Theory and Policy Analysis, and director of the Interdisciplinary Experimental Laboratory, Indiana University Bloomington. Jimmy’s principal research focus is the use of experimental methods in the investigation of individual and group behavior related to the voluntary provision of public goods and the use of common-pool resources. He is a recipient of Indiana University’s “Student Choice Award” and the College of Arts and Sciences James P. Holland Teaching Award and was selected for participation in FACET (Faculty Colloquium on Excellence in Teaching) and FLP (Freshman Learning Project). He is the coauthor, with Elinor Ostrom and Roy Gardner, of Rules Games, and Common-Pool Resources. Other selected publications include: “Probabilistic Destruction of Common-Pool Resources: Experimental Evidence,” Economic Journal (with Roy Gardner); “Covenants with and without a Sword: Self-Governance is Possible,” American Political Science Review (with Elinor Ostrom and Roy Gardner); “Group Size and the Voluntary Provision of Public Goods: Experimental Evidence Utilizing Large Groups,” Journal of Public Economics (with R. Mark Isaac and Arlington Williams); “An Experimental Study of Time-Independent and Time-Dependent Externalities in the Commons,” Games and Economic Behavior (with Andrew Herr and Roy Gardner); “Collective Choice in the Commons: Experimental Results on Proposed Allocation Rules and Votes,” Economic Journal (with Roy Gardner, Andrew Herr, and Elinor Ostrom); and “Collective Action with Incomplete Commitment: Experimental Evidence,” Southern Economic Journal (with Pamela Schmitt and Kurtis Swope). In addition, Jimmy and colleagues have been recipients of numerous research grants from the National Science Foundation.