Mark J. Lee Towson University   Department of Economics Towson University 8000 York Road Towson, MD 21252 U.S.A.   mlee@towson.edu   http://pages.towson.edu/mlee           JEL Areas: O4 : Economic Growth and Aggregate Productivity: General E3 : Prices, Business Fluctuations, and Cycles: General (includes Measurement and Data)