Co-Founder and Chief Analytics Officer, Repliqa, Reston, VA, March 2006 present. Chief Analytics Officer, Parabon Computation, Fairfax, VA, January 2000 August 2001. Acting Chief Financial Officer, Parabon Computation, Fairfax, VA, September 1999 May 2001. Financial Analyst / Forecaster, The Burney Company, Falls Church, VA, 1997. President and Co-Founder, Paragon Software, Greensburg, PA, 1985 1987. Market Researcher and Forensic Economist, Cline-Davies Research Alliance, 1997 present. Visiting Scholar, The Mercatus Center, George Mason University, Summer 2007. Associate Professor of Economics, Duquesne University, 2006 present. Research Fellow, Mercatus Center s Capitol Hill Campus, 2001 present. Assistant Professor of Finance, Economics, and Statistics, Duquesne University, 1999 2000, 2001 2005. Visiting Assistant Professor of Finance and Economics, Department of Economics and Finance, West Virginia University, 1998 1999. Assistant Professor of Economics, Department of Business and Economics, West Virginia Wesleyan College, 1992 1998. Lecturer, Economics Department, University at Albany (SUNY), 1987 1992.