Theory of economic growth; rational expectations; Major trade cycle theories, real business cycle theory; Castrophy theory, Kaldor’s Model, traditional Keynesian theories of fluctuations; new Keynesian theories; consumption; investment; government debt and Ricardian equivalence; inflation, money supply and demand; fiscal and monetary policy; co-ordination failure and unemployment. Disequilibrium models; Rational expectations and equilibrium, effects of monetary policy; disequilibrium models.