Gilbert F. Schaefer Chair in Economics: July 1, 2011 - present. Chairperson, Department of Economics, University of Notre Dame: July 1, 2001 - June 30, 2003, July 1, 2010 - June 30, 2014. Chairperson, Department of Economics and Econometrics, University of Notre Dame: July 1, 2003 - June 30, 2010. Fellow, International Journal of Industrial Organization: 1997 - present. Co-Editor, International Journal of Industrial Organization: 2004 - 2010. Professor of Economics, University of Notre Dame: 2000 - present. Faculty Fellow, Kellogg Institute for International Studies: 2001 - present. Faculty Fellow, Institute for Educational Initiatives: 2007 - present. Faculty Fellow, Notre Dame Energy Center: 2007 - present. Associate Editor, International Journal of Industrial Organization: 1993 - 2004. Associate Editor, Southern Economic Journal: 1997 - 2003. Visiting Scholar, Managerial Economics and Decision Sciences Department, J. L. Kellogg Graduate School of Management, Northwestern University: Winter and Spring, 2000. Gatton Endowed Professor of Economics, University of Kentucky: 1999 - 2000. Gatton Research Professor, University of Kentucky: 1997 - 1998. Ashland Oil Research Professor, University of Kentucky: 1990 - 1997. Professor of Economics, University of Kentucky: 1992 - 2000. Director of Graduate Studies in Economics, University of Kentucky: 1991 - 1999. Associate Professor of Economics, University of Kentucky: 1989 - 1992. Visiting Scholar, Center for Mathematical Studies in Economics and Management Science, Northwestern University: Spring, 1985. Assistant Professor of Economics, Ohio State University: 1980 - 1987. Lecturer, Department of Economics, Ohio State University: 1979 - 1980.