Theoretical analysis of national income, employment, and price-level determination; roles of consumer and investor demand, interest rates, money supply, and fiscal and monetary policy considered within the framework of Keynesian, post-Keynesian, monetarist, and new classical theories.Formerly 21:220:324. Prerequisites: Introduction to Economics, Macro (21:220:102), Introduction to Economics, Micro (21:220:101), and College Algebra for Science Business (21:640:109).