Nicola Viegi University of Pretoria   University of Pretoria Department of Economics Lynwood Road Pretoria, 0002 South Africa   nicola.viegi@up.ac.za   www,nviegi.net           JEL Areas: E6 : Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General H6 : National Budget, Deficit, and Debt: General