ECN 204 Lecture : Chapter 14.docx
Document Summary
Real gdp grows 2% per year on average. Recessions: periods of falling real incomes and rising unemployment. Facts about economic fluctuations: economic fluctuations are irregular and unpredictable, most macroeconomic quantities fluctuate together, as output falls, unemployment rises. Model of aggregate demand and aggregate supply: used to study fluctuations, differs from classical economic theories economists use to explain the long run. Aggregate demand curve: shows the quantity of g&s that households, firms and gov t want to buy at each price level. Aggregate supply curve: shows the quantity of g&s that firms choose to produce and sell at each price level. Ad curve shows the quantity of all g&s demanded in the economy at any given price level. Y = c + i + g + nx. We must determine how a change in p affects c, i and nx. The wealth effect (p and c, negative relationship)