The major propositions of intermediate macroeconomics are reviewed and expressed in the language of mathematics, and more complex and newer theories of macroeconomics are presented. A major substantive focus will be on the similarities and differences between classical, post Keynesian, monetarist and rational expectations theories for macroeconomics, recent relevant empirical findings and implications of economic policy. The course is especially recommended to students considering graduate work in economics and should also prove useful to students considering graduate study in business. This course is irregularly scheduled.