National income and price determination explores how economies function at a macro level. oct 29, 2020 · this video covers all of the key points of unit 3 from the ap macroeconomics course exam description (ced). 3 days ago · investment is the sum of purchases of capital equipment, inventories and structures and includes only new housing. Aggregate demand and aggregate supply; Fluctuations of output & prices. Students must understand t he graphs used in. on this page, you’ll find ap macroeconomics resources to help you with your ap macroeconomics…