M Aykut Attar Hacettepe University   Department of Economics, FEAS Building No: 27, Hacettepe University Beytepe Campus, Cankaya Ankara - TURKEY, 06800 Turkey   maattar@hacettepe.edu.tr   https://sites.google.com/view/maattar/           JEL Areas: O4 : Economic Growth and Aggregate Productivity: General N1 : Economic History: Macroeconomics and Monetary Economics; Growth and Fluctuations: General, International, or Comparative