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Next Exam !
Exam 6 Thursday December 26
!
Chapters 18, 19, 20 and 21
Microeconomics Lecture 20
!
Income Inequality and Poverty
The internet is the most powerful idea creation and
testing factory
0
100
200
300
400
500
600
1963 1966 1969 1972 1975 1978 1981 1984 1987 1990 1993 1996 1999 2002 2005 2008 2011
Patents Population
Ideas Grow Faster than Population
Ideas grow exponentially
Rate/Period 0 1 2 3 4 5 6 7 8 9 10
2% 1.00 1.02 1.04 1.06 1.08 1.10 1.13 1.15 1.17 1.20 1.22
5% 1.00 1.05 1.10 1.16 1.22 1.28 1.34 1.41 1.48 1.55 1.63
10% 1.00 1.10 1.21 1.33 1.46 1.61 1.77 1.95 2.14 2.36 2.59
25% 1.00 1.25 1.56 1.95 2.44 3.05 3.81 4.77 5.96 7.45 9.31
50% 1.00 1.50 2.25 3.38 5.06 7.59 11.39 17.09 25.63 38.44 57.67
100% 1.00 2.00 4.00 8.00 16.00 32.00 64.00 128.00 256.00 512.00 1,024.00
The Power of Compounding
0
300
600
900
1200
0 1 2 3 4 5 6 7 8 9 10
Rate/Period
0 1 2 3 4 5 6 7 8 9 10
2% 1.00 1.02 1.04 1.06 1.08 1.10 1.13 1.15 1.17 1.20 1.22
5% 1.00 1.05 1.10 1.16 1.22 1.28 1.34 1.41 1.48 1.55 1.63
10% 1.00 1.10 1.21 1.33 1.46 1.61 1.77 1.95 2.14 2.36 2.59
25% 1.00 1.25 1.56 1.95 2.44 3.05 3.81 4.77 5.96 7.45 9.31
50% 1.00 1.50 2.25 3.38 5.06 7.59 11.39 17.09 25.63 38.44 57.67
100% 1.00 2.00 4.00 8.00 16.00 32.00 64.00 128.00 256.00 512.00 1,024.00
The Power of Compounding
Intellectual
Financial Physical
Human
Culture
Entrepreneur
What capital was used to create the iPhone?
Why wasn’t the iPhone created in Syria?
Income is unequal
Remember: income must be
created before it can be distributed or
redistributed
Earning Income !
Distributing IncomeWho makes it
!
Who gets it
Distributing Income !
Redistributing IncomeEarner distributes it
!
Government takes from earner and
distributes
Fairness
Milton Friedman (1912 - 2006)
Fairness is not an
objectively determined
concept
Fairness
Two Definitions
Redistributive Fairness
It is fair to equalize rewards.
Inequality is inherently
unfair.
Meritocratic Fairness
Fairness means matching reward to merit.
!
Forced equality is inherently unfair
The worst form of inequality is to try to make unequal things
equal. !
– Aristotle
THE REAL QUESTION is not whether fairness
mattersit does...
but which definition is correct for public policy.
Quiz1. What is Redistributive Fairness? !
2. What is Meritocratic Fairness?
How you slice the pie
!
determines the size of
the pie
Culture
China switched
the fairness definition in1989
QuintileLine up by income
One-Fifth
Perfect Equality
0%
5%
10%
15%
20%
25%
30%
35%
40%
45%
50%
Bottom 20% 4th 20% 3rd 20% 2nd 20% Top 20%
45%
21%
15%
11%8%
Income Inequality by Quintile Middle East North Africa (MENA)
Percent of
Income
Poverty LineA level of income set by the government below which is deemed to be in poverty
Poverty RateThe percentage of the
population living below the poverty line
Percent Below Poverty Line
Egypt 20
Gaza 70
Iran 18
Iraq 25
Jordan 14
Syria 12
UAE 19
Yemen 45
$0
Age
The Income Lifecycle
Born Die
Go to Work
Peak at 50
Retire-
+
Level Spending
Earning Varies
Consumption Gap Top 20%
to Bottom 20%Unadjusted
Income 15 x
After Taxes 14 x
Consumption 4 x
Household Size 2 x
What percent of millionaires inherited their
wealth?20% Inherited
80% Earned
What would you rather be?
Rich in poor country or
Poor in a rich country
Who is richer?
Price Drop since 1953 - 90 Percent
Price Drop since 1953 - 90 Percent
Contact Lenses
1971 95 hours
1997 4 hours
- 96%
1954
30,000 SAR2013
3,000 SAR
Cell Phone Internet Air Conditioner Jet Travel Medicine
2013 vs. 1953Entertainment Car Housing Food Opportunities
Your Income
Average Income
A 100,000 100,000
B 200,000 300,000
C 50,000 25,000
Absolute or Relative?
What should the government do about
income inequality?
Government can make income more equal
Distorts incentives Alters behavior
Less efficient allocation
How much inequality?
What can government do?
How to help the poor
Utilitarianismthe government
tries to maximize total utility
Utilitya measure of happiness or satisfaction
If you take from the rich and give to the
poorboth have less
incentive to work
If you take 25% from the A student and give
to the F student
both have less incentive to study
Libertarianismthe government should enforce contracts and punish crimes but not redistribute income
Libertarianismthe process is more important than the
outcomes
Libertarianismif the process is just
then the outcome is fair regardless of the
inequality