1. PowerPoint #2 Aggregate Demand, Supply, and Equilibrium
Economics
Unit 5

2. Nuts and Bolts Essential Questions
How is aggregate demand and supply different than regular demand and supply?
Is the aggregate demand curve upward or downward sloping?
Is the aggregate supply curve upward of downward sloping?
Does an increase move the curve to the right or left?
Does a decrease move the curve to the right or left?
What is the equilibrium price level and national output?

3. Macro…the Aggregate Approach
The laws of supply and demand can be applied to the economy as a whole as well as to individual consumer decisions.
When we look at the economy as a whole in this way, we are looking at aggregates—the summing up of all the individual parts in the economy.

4. Aggregate Demand
Definition: is the total quantity of goods and services demanded by all people in the economy.

5. Aggregate Demand
Answer these question while watching the video. You will need to know this for the test so don’t skip over it – watch it and re-watch it until you understand it
Explain the “wealth effect”
Explain the “interest effect”
Stop the video at 2:26 an analyze the statements. Write down if the statement will cause:
the aggregate demand to increase or decrease.
Does it cause aggregate demand to shift to the left or to the right?

6. Aggregate Demand
If the price level goes down, a larger quantity of real domestic output is demanded per year.
(AD↑)
If the price level rises, A smaller quantity of real domestic output is demanded per year.
(AD↓)

7. Aggregate Demand Curve
Aggregate demand may increase (curve shifts to the right) if consumers collectively spend more and save less or if better economic conditions are forecast.
Aggregate demand may decrease (curve shifts to the left) if higher taxes are imposed on the overall economy or if bleak economic conditions are forecast.

8. Aggregate Supply
Definition: the quantity of all goods and services being produced at various prices.

9. Aggregate Supply
Answer these question while watching the video. You will need to know this for the test so don’t skip over it – watch it and re-watch it until you understand it
Stop the video at 1:13 and analyze the statements. Write down if the statement will cause:
the aggregate supply to increase or decrease.
Does it cause aggregate supply to shift to the left or to the right?

10. Aggregate Supply
If the price level increases producers will want to supply more (AS↑)
If the price level falls producers want to make less (AS↓)

11. Aggregate Supply Curve
Aggregate supply increases (curve shifts to the right) when all firms experience lower costs of production due to lower taxes or interest rates or lower prices for inputs.
Aggregate supply decreases (curve shifts to the left) for the opposite reasons: higher taxes, higher interest rates, higher prices for inputs.

12. Putting Aggregate Demand and Aggregate Supply Together
If you combine the aggregate supply curve and the aggregate demand curve, you can find the equilibrium price and quantity (where two curves meet).
The intersection of aggregate demand and aggregate supply gives the equilibrium price level and national output (real domestic product).

13. Nuts and Bolts Essential Questions
How is aggregate demand and supply different than regular demand and supply?
Is the aggregate demand curve upward or downward sloping?
Is the aggregate supply curve upward of downward sloping?
Does an increase move the curve to the right or left?
Does a decrease move the curve to the right or left?
What is the equilibrium price level and national output?