Assistant Professor of Economics, Boston College, 1969-72 Associate Professor of Economics, Boston College, 1972-77 Professor of Economics, Boston College, 1977-2004 William B. Neenan, S.J. Millennium Professor of Economics, 2004- Director of Graduate Studies, 1977-82. Chairman, 2009-12 Visiting Scholar, Institute for International Economic Studies, Stockholm, April May, 1990, April 1997. Visiting Scholar, Harvard University, 1996-7. Visiting Scholar, University of Konstanz, May-June, 1997 Visiting Scholar, Chinese University of Hong Kong, May 1998. Visiting Scholar, Brookings Institution, 2003 Visiting Scholar, London School of Economics, 2004 Visiting Scholar, MIT, 2009 Visiting Scholar, Oxford University, 2013