• The aggregate demand and the aggregate supply model allows us to examine how a variety of events can affect the economy.
• Explain the shape of aggregate demand curve.
• How do Classical and Keynesian economists differ in their view of the aggregate supply curve?
• In your own words, discuss which of the four sources identified with aggregate demand has caused a change in the aggregate demand for a product or service you or your employer use. Share the effect that source has had on how you or your employer contribute to the measurement of aggregate demand.