1. Market Failures

2. Review Activity: Password

3. Sit down when you are done
Public Good
Tax
Positive Externality
Free Rider
Marginal Social Cost
Round 1

4. Sit down when you are done
Negative Externality
Nonexclusion
Market Failure
Invisible Hand
Common Pool Problem
Round 2

5. Review Define Market Failure.
Identify the four market failures we have learned in this unit.
Explain why are public goods a market failure.
Explain why are externalities a market failure.
Explain why are monopolies a market failure.
By yourself, draw a positive externality.
By yourself, draw a negative externality.
Use graph to explain the remedy for positive externalities.
Use graph to explain the remedy for negative externalities.
Name 10 different super heroes.

6. Market Failure #4 Unfair Distribution of Wealth
Net Worth over $2.3 billion

7. What percent of American’s are living in poverty?
Why is income distribution a market failure?

8. SIMULATION (Based on 2003 Information)
Income Inequality
In 2003, the average American family made $66,863. Everyone is obviously rich.
What’s wrong with using the average?
Averages reveal absolutely nothing about how income is distributed.
How does the government measure distribution of income?
SIMULATION
(Based on 2003 Information)

9. THE LORENZ CURVE

10. Measuring Income Distribution
Review the process:
The government divides all income earning families into five equal groups (quintiles) from poorest to richest.
Each groups represents 20% of the population.
If there was perfect equality then 20% of the families should earn 20% of the income, 40% should earn 40% (and so on).
The government compares how far the actual distribution is from perfect distribution then attempts to redistribute money fairly.

11. Measuring Income Distribution
Summary:
Group #1 (Poorest 20%)
Total of $5 (5% of total income)
Group #2
Total of $10 (10% of total income)
Group #3
Total of $15 (15% of total income)
Group #4
Total of $25 (25% of total income)
Group #5 (Richest 20%)
Total of $45 (45% of total income)

12. The Lorenz Curve Perfect Equality Percent of Income
100 80 60 40 20
Perfect Equality
Percent of Income
Percent of Families

13. The Lorenz Curve Lorenz Curve (actual distribution) Perfect Equality
100 80 60 55 40 30 20 15 5
Lorenz Curve
(actual distribution)
Perfect Equality
Percent of Income
Percent of Families

14. The size of the banana shows
The Lorenz Curve
100 80 60 55 40 30 20 15 5
Lorenz Curve
(actual distribution)
Perfect Equality
Percent of Income
The size of the banana shows
the degree of
income inequality.
Percent of Families 14

15. The banana gets smaller when the government re-distributes income
The Lorenz Curve
100 80 60 55 40 30 20 15 5
After Distribution
Perfect Equality
Percent of Income
The banana gets smaller when the government re-distributes income
Percent of Families 15

16. Where does the government get the money for welfare?
Welfare provides a safety net for citizens (retirement, unemployment, workers comp, health, etc.) BUT, what are some possible downsides?
Where does the government get the money for welfare?

17. Taxes

18. Why does the government tax?
What are Taxes?
Taxes – mandatory payments made to the government to cover costs of governing.
Why does the government tax?
Two purposes:
Finance government operations.
Public goods-highways, defense, employee wages
Fund Programs- welfare, social security
2. Influence economic behavior of firms and individuals.
Ex: Excise taxes on tobacco raises tax revenue and discourages the use of cigarettes.

19. Three Types of Taxes
1. Progressive Taxes -takes a larger percent of income from high income groups (takes more from rich people).
Ex: Current Federal Income Tax system
2. Proportional Taxes (flat rate) –takes the same percent of income from all income groups.
Ex: 20% flat income tax on all income groups
3. Regressive Taxes –takes a larger percentage from low income groups (takes more from poor people).
Ex: Sales tax; any consumption tax.

20. What kind of taxes are these? (THINK % of Income)
Three Types of Taxes
What kind of taxes are these? (THINK % of Income)
Toll road tax ($1 per day)
State income tax where richer citizens pay higher %
$.45 tax on cigarettes
Medicare tax of 1% of every dollar earned
8.25% California sales tax
Regressive
Progressive
Proportional

21. Federal Income Tax Debate
Equal Tax of $350 per week (Regressive Tax)
Income Amount of Tax % Amount to live on
$200 $ % -$150)[crime?]
$350 $ % $0
$500 $ % $150
$1,000 $ % $650
$5,000 $ % $4,650
Tax tax of 20% per week (Proportional Tax)
Income Amount of Tax Amount to live on
$200 $40 $160
$350 $70 $280
$500 $100 $400
$1,000 $200 $800
$5,000 $1,000 $4,000

22. Federal Income Tax Debate This is our current system. Is it fair?
The Progressive tax system is the most effective way to fight this market failure

23. The Laffer Curve The LAST micro graph to learn!!!!
Shows relationship between tax rate and tax revenue.
What would happen if the highest tax bracket was 75%? 23

24. THINK ROBIN HOOD!!!!!! What was his group’s name? Merry Men
What did they do?
Laugh a lot…they were “Laffers.”
What was his weapon of choice?
Bow and Arrow
What did Robin Hood do?
Steal from the rich and give to the poor.
What would happen to the amount of travelers through Sherwood forest if he took 95% instead of 39% of their money?
What would happen to the total amount of money he collects? 24

25. If the government increase taxes rates tax revenue will increase
The Laffer Curve
If the government increase taxes rates tax revenue will increase
% Tax Rate
If the tax rate becomes too high, tax revenue will fall since workers have no incentive to work harder
Tax Revenue 25

26. GREAT NEWS…
YOU ARE DONE WITH MICRO!!!!

27. Practice FRQs

28. 2005, #2

29. 2003, #1