llad phillips1 jobs and crime. llad phillips2 a theme for this course us and ca criminal justice...
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Llad Phillips 1
Jobs and CrimeJobs and Crime
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A theme for this courseA theme for this course US and CA criminal justice systems will be US and CA criminal justice systems will be
case studies, but are there larger issues about case studies, but are there larger issues about the public sector?the public sector?
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Public Sector
Health
Safety
Civics
Education
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What determines the quality of life in a nation, a state or a locality? What determines the quality of life in a nation, a state or a locality?
The distribution of GDP between the public and private sectors?
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Total Tax Burden As % of GDP, 2004Google Forbes overall tax burdenTotal Tax Burden As % of GDP, 2004Google Forbes overall tax burden
Country Total Tax burden
Sweden 50.7%
France 43.7
UK 36.1
Germany 34.8
Canada 33.0
Switzerland 29.4
USA 25.5
Mexico 18.5
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Public Vs. Private GoodsPublic Vs. Private Goods
Labor for Public Goods
Labor for
Private Goods
Contraint
Labor, Private
Private
Goods
Production Function
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L, public
Output, Public
L, Private
Output, PrivateProduction Possibility Frontier
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L, public
Output, Public
L, Private
Output, PrivateProduction Possibility Frontier
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Private
Public
Sweden
UK
USMexico
Canada
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Production Possibility FrontierProduction Possibility FrontierPRIVATE
PUBLIC
Inefficient
Does the global economyCause a bias towards Private instead of publicGoods and services?
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Production Possibility FrontierProduction Possibility Frontier
Public Goods:Defense
Public Goods: Health
Inefficient
Does being the world’sPoliceman cause a bias Away from other public Goods and services?
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Expenditures Per PupilExpenditures Per PupilFiscalFiscal
YearYear
70-7170-71 80-8180-81 90-9190-91 00-0100-01 03-0403-04 05-0605-06
CACA
RankRank
1414 1919 2828 2525 2828 3535
NominalNominal
$, CA$, CA
902902 24382438 45954595 69866986 76737673 86078607
USUS 842842 23072307 49024902 73737373 83108310 95769576
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Production Possibility FrontierProduction Possibility Frontier
Public Goods:Prison Operation
Public Goods: education
Inefficient
Which would you rather do (1) keep the 30% ofstate prisoners who are pot-heads locked up, or(2) educate your kids?
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US PoliticsUS Politics ““It’s the economy stupid!”It’s the economy stupid!” Issues in 2008Issues in 2008
Human capital and educationHuman capital and education The family and social conservativesThe family and social conservatives
Huck & ChuckHuck & Chuck MittMitt
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31.0%7.3%
31.0/33.8~8.6 decline
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33.8%
5.8%
7.3/5.8 ~ 26% rise
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The Economy and CrimeThe Economy and Crime
Is crime affected by the business cycle?Is crime affected by the business cycle? Do economic factors cause crime?Do economic factors cause crime?
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Where is the economy headed?Survey of Professional Forecastershttp://www.phil.frb.org/files/spf/survq407.html
Where is the economy headed?Survey of Professional Forecastershttp://www.phil.frb.org/files/spf/survq407.html
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Governor’s Budget Summary 2008-09
Jan 1990 Jan 2007
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California Forecasts & Record: Umemployment rate: CA Dept. of FinanceCalifornia Forecasts & Record: Umemployment rate: CA Dept. of Finance
YearYear 20042004 20052005 20062006 20072007 20082008 20092009 20102010
CACA 6.2%6.2% 5.4%5.4% 4.9%4.9% 5.3%5.3% 5.7%5.7% 5.6%5.6% 5.5%5.5%
USUS 5.5%5.5% 5.1%5.1% 4.6%4.6% 4.6%4.6% 5.0%5.0% 5.0%5.0% 4.8%4.8%
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OutlineOutline Seriousness SurveySeriousness Survey
What can we learn from the survey?What can we learn from the survey? Crime FileCrime File
VictimsVictims Jobs and CrimeJobs and Crime
Jobs and CrimeJobs and Crime Why do some people get involved with crime?Why do some people get involved with crime?
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Class Survey 2009 Vs. Sample 2008Class Survey 2009 Vs. Sample 2008
Scoring Ten BehaviorsScoring Ten Behaviors 103 responses in ’09, 97 responses in ‘08103 responses in ’09, 97 responses in ‘08
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SERIOUSNESS SURVEY
RATE THE SERIOUSNESS OF EACH OF THE FOLLOWING BEHAVIORS ON A SCALE FROM ZERO( LEAST SERIOUS) TO TEN( MOST SERIOUS):
MEDIAN ‘08 ‘091. HOMICIDE _10 10__2. MASS POISONING ( e.g. TYLENOL) _ 9 10__ 3. FORCIBLE RAPE _ 10 10__4. ARSON: SET FIRE TO A GARAGE _ 8 7__5. SELLING HEROIN _ 7 7__6. AUTO THEFT _ 6 6__7. EMBEZZLEMENT OF $1,000 _ 5 6__8. PROSTITUTE IN A HOUSE OF PROSTITUTION _ 4 4__9. POSSESSION OF MARIJUANA _ 2 1__10. SNIFFING GLUE _ 1 1__
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ConclusionsConclusions Consistency from year to year Triage is possible: we can separate the more
serious behaviors from the less serious behaviors
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0
20
40
60
80
100
1.25 2.50 3.75 5.00 6.25 7.50 8.75 10.00
Series: HOMICIDESample 1 103Observations 103
Mean 9.650485Median 10.00000Maximum 10.00000Minimum 1.000000Std. Dev. 1.117672Skewness -5.249860Kurtosis 37.30991
Jarque-Bera 5525.152Probability 0.000000
Histogram Distribution of Homicide Scores, Econ 160 W 2009
Distribution of Homicide ScoresDistribution of Homicide Scores
One 1 One 6
One 7
Six 8’s
Four 9’s
Median: 52nd Person
90
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Histogram of Homicide Sores, '08
0 0 1 0 1 1 0 0 3 7
84
0
20
40
60
80
100
0 1 2 3 4 5 6 7 8 9 10
Seriousness Score
Fre
qu
en
cy
Mode = 10, most likely numberMedian = 10, score of 49th or middle person
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Average scores 2001 and 2002
0.0
2.0
4.0
6.0
8.0
10.0
12.0
0 1 2 3 4 5 6 7 8 9 10
Score 2001
Sco
re 2
002
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ConclusionsConclusions Consistency from year to year Triage is possible: we can separate the more
serious behaviors from the less serious behaviors
For serious behaviors, a clear majority view For example, for homicide 102 out of 103 score
it between 6 and 10, while 100 out of 103 score it between 8 and 10
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Homicide Mean with 95% Confidence interval
8.4
8.6
8.8
9
9.2
9.4
9.6
9.8
10
10.2
10.4
0 20 40 60 80 100 120
Number of Students
Sc
ore
lower
mean
upper
Central Limit theorem in ActionCentral Limit theorem in Action
6 12 2550 103
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Density Function for the Standardized Normal Variate
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
0.45
-5 -4 -3 -2 -1 0 1 2 3 4 5
Standard Deviations
Den
sity
2]1/)0[(2/1*]2/1[)( zezf
2.5%2.5%mean
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0
10
20
30
40
50
60
4 5 6 7 8 9 10
Series: RAPESample 1 103Observations 103
Mean 9.242718Median 10.00000Maximum 10.00000Minimum 4.000000Std. Dev. 1.150158Skewness -1.960168Kurtosis 7.483749
Jarque-Bera 152.2384Probability 0.000000
Histogram of the distribution of Rape Scores, Econ 160 W 2009
59
25
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Mode: 10Median: 10
Histogram: Forcible Rape Scores, '08
0 0 0 0 0 0 15
10
20
61
0
10
20
30
40
50
60
70
0 1 2 3 4 5 6 7 8 9 10
Seriousness Scores
Fre
qu
en
cy
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0
5
10
15
20
25
30
0 1 2 3 4 5 6 7 8
Series: POTSample 1 103Observations 103
Mean 1.980583Median 1.000000Maximum 8.000000Minimum 0.000000Std. Dev. 1.965290Skewness 1.327678Kurtosis 4.383029
Jarque-Bera 38.46917Probability 0.000000
Histogram of Distribution of Possession of Pot Scores, Econ 160 W 2009
3
1
54 3
The Vocal Minority: sixteen score Pot highThe Vocal Minority: sixteen score Pot high
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Histogram: Possession of Pot, Scores
2123
14 15
7 6 7
2 1 0 10
5
10
15
20
25
0 1 2 3 4 5 6 7 8 9 10
Seriousness Scores
Fre
qu
ency
Mode: 1Median: 2
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Center of the Scores DistributionCenter of the Scores Distribution
Mode: most likelyMode: most likely Median: middle personMedian: middle person Average: sum of scores divided by total Average: sum of scores divided by total
number of peoplenumber of people
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John Tukey: Box Plot for Sniffing Glue Econ 160 W 2009John Tukey: Box Plot for Sniffing Glue Econ 160 W 2009
Smallest = 0
Q1 = 0
Median = 1
Q3 = 3
Largest = 10
IQR = 3
Outliers: 10, 10, 10, 9, 8, 8, 8,
Median16 folks score as 4 or above
73 folks score as 2 0r below Fight for 14 3’s
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ConclusionsConclusions Consistency from year to year Triage is possible: we can separate the more
serious behaviors from the less serious behaviors
For serious behaviors, a clear majority view For example, for homicide 102 out of 103 score
it between 6 and 10, while 100 out of 103 score it between 8 and 10
The less serious behaviors are more controversial!
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Dispersion of Scores DistributionDispersion of Scores Distribution
Measures of dispersionMeasures of dispersion Standard deviationStandard deviation Inter-quartile rangeInter-quartile range Range: Maximum - MinimumRange: Maximum - Minimum
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SERIOUSNESS SURVEY
RATE THE SERIOUSNESS OF EACH OF THE FOLLOWING BEHAVIORS ON A SCALE FROM ZERO( LEAST SERIOUS) TO TEN( MOST SERIOUS):
Minimum, Maximum1. HOMICIDE _2, 102. MASS POISONING ( e.g. TYLENOL) _0, 1010 3. FORCIBLE RAPE _6, 104. ARSON: SET FIRE TO A GARAGE _2, 105. SELLING HEROIN _0, 106. AUTO THEFT _3, 107. EMBEZZLEMENT OF $1,000 _0, 98. PROSTITUTE IN A HOUSE OF PROSTITUTION _0, 109. POSSESSION OF MARIJUANA _0, 1010. SNIFFING GLUE _0, 8
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Dispersion (Disagreement) Versus Seriousness, 2008
Sniffing Glue
ProstitutePossess Pot
Arson
Forcible Rape
Homicide
y = -0.095x + 2.4217
R2 = 0.3905
0.00
0.50
1.00
1.50
2.00
2.50
3.00
0 2 4 6 8 10 12
Seriousness Score
Sta
nd
ard
Dev
iati
on
The more serious the behavior, the less disagreement about policy
The more serious the behavior, the less disagreement about policy
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Dispersion Versus Seriousness, W 06
Possession of Pot
Sniffi ng Glue
Prostitution
Embezzlement
Auto Theft
Heroin
Arson
Rape
Poisoning
Homicide
0.000
0.500
1.000
1.500
2.000
2.500
3.000
0 2 4 6 8 10 12
Median
P
Policy is easier
Policy is more difficult
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Bureau of Justice Statistics,Report to the Nation
The Alternativep.170
One more step: converting seriousness scores to a metric (years of sentence or Loss rate of $)
The Economics of Crime Control, Ch. 4
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Mapping Seriousness Scores Into Dollars, 2008
Sniffing Glue
Embezzlement of $ 1000
Homicide
$0.10
$1.00
$10.00
$100.00
$1,000.00
$10,000.00
$100,000.00
$1,000,000.00
$10,000,000.00
0 2 4 6 8 10 12
Seriousness Scores
Lo
ss R
ate
Source: $ 1.54 Million (1990), Orley Ashenfelter, Princeton,Based on highway safety
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Types of CrimeTypes of Crime
Motivation: self-interest, greedMotivation: self-interest, greed Street Crimes: robbery, burglary, auto theft, Street Crimes: robbery, burglary, auto theft,
larcenylarceny White Collar: embezzlement, tax evasion, White Collar: embezzlement, tax evasion,
check fraud, telephone fraudcheck fraud, telephone fraud Status Offenses: runaway, truant, vagrant, Status Offenses: runaway, truant, vagrant,
beyond control of parentsbeyond control of parents Black Market: gambling, prostitution,drugsBlack Market: gambling, prostitution,drugs
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Llad Phillips 47
Types of CrimeTypes of Crime Motivation: Hate, RageMotivation: Hate, Rage
Street Crimes: homicide, aggravated assault, Street Crimes: homicide, aggravated assault, raperape
Crimes Against Public Order: vandalism, Crimes Against Public Order: vandalism, terrorismterrorism
Hate CrimesHate Crimes Columbine HighColumbine High James Byrd: dragging death in TexasJames Byrd: dragging death in Texas Jewish Community Center in Granada HillsJewish Community Center in Granada Hills
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Llad Phillips 48
Jobs and CrimeJobs and Crime
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Llad Phillips 49
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Llad Phillips 50
Questions About CrimeQuestions About Crime
Does the Business Cycle Affect Crime Does the Business Cycle Affect Crime Rates?Rates?
Does an Individual’s Life Cycle Affect Does an Individual’s Life Cycle Affect Crime Rates?Crime Rates?
Why do some people live socially Why do some people live socially unproductive lives?unproductive lives?
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Llad Phillips 51
Two Points About Economic Conditions and CrimeTwo Points About Economic Conditions and Crime Relationship of Crime to the Business CycleRelationship of Crime to the Business Cycle
Short RunShort Run: Business Cycle: Business Cycle Is Phil Cook wrong?Is Phil Cook wrong? California: the misery index and crimeCalifornia: the misery index and crime
misery index = unemployment rate + inflation ratemisery index = unemployment rate + inflation rate
Relationship of Crime to the Life CycleRelationship of Crime to the Life Cycle Long RunLong Run Investment in EducationInvestment in Education Role of the FamilyRole of the Family
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Llad Phillips 52
California Unemployment Rate and Inflation Rate, 1952-2004
-5.00
0.00
5.00
10.00
15.00
20.00
25.00
1940 1950 1960 1970 1980 1990 2000 2010
Year
Pe
r C
en
t
unemployment rate
inflation rate
misery rate
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Llad Phillips 53
CA Crime Index Per 1000 and Misery Index (Percent), 1952-2004
0.00
5.00
10.00
15.00
20.00
25.00
30.00
35.00
40.00
45.00
1940 1950 1960 1970 1980 1990 2000 2010
Year
Ra
te
Misery index
CA Crime Index
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Llad Phillips 54
CA Crime Index(t) = a +b*Misery Index(t)CA Crime Index(t) = a +b*Misery Index(t)
-0.015
-0.010
-0.005
0.000
0.005
0.010
0.015
0.00
0.01
0.02
0.03
0.04
0.05
55 60 65 70 75 80 85 90 95 00
Residual Actual Fitted
CA Crime Index Per Capita Versus Misery Index
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Llad Phillips 55
CA Crime Index Per 1000 Vs. Misery Index
0
5
10
15
20
25
30
35
40
45
0.00 5.00 10.00 15.00 20.00 25.00
Misery Index
Cri
me
Ind
ex
2002
1952
1980
1954
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California: Crime Index Versus Misery Index .
y = -0.1702x 2 + 6.0493x - 16.491
R2 = 0.7761
0
5
10
15
20
25
30
35
40
0.00 5.00 10.00 15.00 20.00 25.00
Misery Index
Cri
me I
nd
ex
Observed Data
Quadratic Fit
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US Unemployment Rates, Males, Seasonally Adjusted .
0
2
4
6
8
10
12
14Ja
n-8
9
Jul-
89
Jan
-90
Jul-
90
Jan
-91
Jul-
91
Jan
-92
Jul-
92
Jan
-93
Jul-
93
Jan
-94
Jul-
94
Jan
-95
Jul-
95
Jan
-96
Jul-
96
Jan
-97
Jul-
97
Jan
-98
Jul-
98
Jan
-99
Jul-
99
Date
Rate
White, 20 plus
Black, 20 plus
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Unemployment Rates, Seasonally Adjusted, Males 16-19 .
0
5
10
15
20
25
30
35
40
45
50
Feb
-89
Au
g-8
9
Feb
-90
Au
g-9
0
Feb
-91
Au
g-9
1
Feb
-92
Au
g-9
2
Feb
-93
Au
g-9
3
Feb
-94
Au
g-9
4
Feb
-95
Au
g-9
5
Feb
-96
Au
g-9
6
Feb
-97
Au
g-9
7
Feb
-98
Au
g-9
8
Feb
-99
Au
g-9
9
Date
Rate
White Male 16-19
Black Male 16-19
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Llad Phillips 59
Why do people work in labor market?Why do people work in labor market?
Tastes? Assume everybody has the same tastes! Human capital: earning power
Education Work experience Health
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Llad Phillips 60
An Individual’s Life Cycle for a Socially Productive LifeAn Individual’s Life Cycle for a Socially Productive Life Learning over the life cycleLearning over the life cycle Accumulating earning power or human Accumulating earning power or human
capitalcapital Earnings depend uponEarnings depend upon
abilityability knowledgeknowledge work experiencework experience
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Llad Phillips 61
Productive Life Cycle
Social Institution
Family - PreSchool - School - College - Job - Retirement
Function
Learning: Accumulating Human Capital - Earning - Spending
Age Line
0 4 6 18 23 65
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Llad Phillips 62
Accumulating Human Capital
Inflow OutflowStock
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Llad Phillips 63
Accumulating Human Capital
StockInflow +
-
OutflowNet Inflow
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Llad Phillips 64
Accumulating Human Capital
HumanCapital
Learning +
-
DepreciationInvestment
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Llad Phillips 65
Allocation of Your Time
Human Capital
Build Capitalby Learning
Use Capitalfor Earning
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Llad Phillips 66
Time Endowment
24 hours
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Llad Phillips 67
24 hours0 hoursLeisure(learning)
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Llad Phillips 68
Allocation of Your Time
Human Capital
Build Capitalby Learning
Use Capitalfor Earning
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Llad Phillips 69
24 hours0 hoursLeisure(learning)
Earnings
$480 Opportunities for trading leisurefor earnings (income) at a rate,$20 per hour, determined by yourstock of human capital
$ 0
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Llad Phillips 70
Salaries by Education Level, CAFull Time* WorkersSalaries by Education Level, CAFull Time* WorkersEducation Salary WageNo HS Dipl. $26,115 $13.06 HS Dipl. $27,326 $13.69Bachelor’s $44,426 $26.39Master’s $52,787 $26.97Doctorate $59,348 $29.67Professional $77,877 $38.94
*Full Time: >35 hrs/wk, >48 wks/yr.; Source: LA Times, 1-10-93
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24 hours0 hoursLeisure(learning)
Earnings
$480
$ 0
$240
dropout
college grad
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Llad Phillips 72
Economists Assume You Can make ComparisonsEconomists Assume You Can make Comparisons For example: you can compare a high level For example: you can compare a high level
of your income and a low level of your of your income and a low level of your leisure leisure withwith a low level of your income and a low level of your income and a high level of your leisurea high level of your leisure
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24 hours0 hoursLeisure(learning)
Earnings
$480
$ 0
Iso-Preference Curves:You value all points on a curve equally
high
low value
high value
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24 hours0 hoursLeisure(learning)
Earnings
$480
$ 0
high
low value
high value
Optimum
15 hoursof leisure
$180for 9 hrsof work
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24 hours0 hoursLeisure(learning)
Earnings
$480
$ 0
high
low value
slope of the iso-preference curve through the 24 hour endowment is the lowest wage at which you are willing to work
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24 hours0 hoursLeisure(learning)
Earnings
$480
$ 0
high
low value
slope of the iso-preference curve through the 24 hour endowment is the lowest wage at which you are willing to work
$96
dropout is unwilling to work for $4/hr
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Llad Phillips 77
Participation in the Labor Force:Willing to look for workParticipation in the Labor Force:Willing to look for work If your market wage exceeds your If your market wage exceeds your
reservation wagereservation wage college grad, @$20/hr, participatescollege grad, @$20/hr, participates the junior high dropout, @ $4/hr, does notthe junior high dropout, @ $4/hr, does not
We assumed the college grad and the We assumed the college grad and the dropout both have the same values for dropout both have the same values for income and leisureincome and leisure
Only their learning histories differ Only their learning histories differ
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24 hours0 hoursLeisure(learning)
Earnings
$480
$ 0
high
low value
slope of the iso-preference curve through the 24 hour endowment is the lowest wage at which you are willing to work
$96
dropout is unwilling to work for $4/hr
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Llad Phillips 79
Hazards to Personal SuccessHazards to Personal Success
Dropping outDropping out Joining gangsJoining gangs Anti-social behavior Anti-social behavior
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Llad Phillips 81
Productive Life Cycle
Social Institution
Family - PreSchool - School - College - Job - Retirement
Function
Learning: Accumulating Human Capital - Earning - Spending
Age Line
0 4 6 18 23 65
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Legal Work or Illegal Work? Choice with Uncertain Outcomes
Choice
Legal work
Illegal work
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Legal Work or Illegal Work? Choice with Uncertain Outcomes
Choice
Legal work
Illegal work
Unemployed (fail)
Employed (succeed)
Apprehended (fail)
Not Apprehended(succeed)
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Legal Work or Illegal Work? Choice with Uncertain Outcomes
Choice
Legal work
Illegal work
Unemployed (fail)
Employed (succeed)
Apprehended (fail)
Not Apprehended(succeed)
0.1
0.9
$0
$12,000/yr
0.2
0.8
$0
$14,000
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Expected legal Income = 0.9*$12,000 = $10,800
Legal Work or Illegal Work? Choice with Uncertain Outcomes
Choice
Legal work
Illegal work
Unemployed (fail)
Employed (succeed)
Apprehended (fail)
Not Apprehended(succeed)
0.1
0.9
$0
$12,000/yr
0.2
0.8
$0
$14,000/yr
Expected illegal income = 0.8*$14,000 = $11,200
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Expected legal Income = 0.95*$12,000 = $11,400
Legal Work or Illegal Work? Choice with Uncertain Outcomes
Choice
Legal work
Illegal work
Unemployed (fail)
Employed (succeed)
Apprehended (fail)
Not Apprehended(succeed)
0.1
0.9
$0
$12,000/yr
0.2
0.8
$0
$14,000/yr
Expected illegal income = 0.8*$14,000 = $11,200
0.05
0.95
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Llad Phillips 87
Social Measures to Reduce CrimeSocial Measures to Reduce Crime Maintain a full-employment economyMaintain a full-employment economy
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Expected legal Income = 0.9*$12,000 = $10,800
Legal Work or Illegal Work? Choice with Uncertain Outcomes
Choice
Legal work
Illegal work
Unemployed (fail)
Employed (succeed)
Apprehended (fail)
Not Apprehended(succeed)
0.1
0.9
$0
$12,000/yr
0.2
0.8
$0
$14,000/yr
Expected illegal income = 0.7*$14,000 = $9,800
0.3
0.7
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Llad Phillips 89
Social Measures to Reduce CrimeSocial Measures to Reduce Crime Maintain an Effective Criminal Justice Maintain an Effective Criminal Justice
SystemSystem keep the probability of apprehension highkeep the probability of apprehension high
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Expected legal Income = 0.9*$12,000 = $10,800
Legal Work or Illegal Work? Choice with Uncertain Outcomes
Choice
Legal work
Illegal work
Unemployed (fail)
Employed (succeed)
Apprehended (fail)
Not Apprehended(succeed)
0.1
0.9
$0
$12,000/yr
0.2
0.8
-$3,000 (fine)
$14,000/yrExpected illegal income = 0.8*$14,000 - 0.2*$3,000 = $10,600
$0
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Llad Phillips 91
Social Measures to Reduce CrimeSocial Measures to Reduce Crime Punish the criminalPunish the criminal
make crime less attractivemake crime less attractive
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Llad Phillips 92
Social Measures to Reduce CrimeSocial Measures to Reduce Crime Maintain a full-employment economyMaintain a full-employment economy Maintain an Effective Criminal Justice Maintain an Effective Criminal Justice
SystemSystem keep the probability of apprehension highkeep the probability of apprehension high
Punish the criminalPunish the criminal make crime less attractivemake crime less attractive
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Llad Phillips 93
SummarySummary
Your economic status affects your probable Your economic status affects your probable behavior: work or crimebehavior: work or crime
Earning power affects your probable Earning power affects your probable behaviorbehavior
When you are are a young teen you need a When you are are a young teen you need a parent or role model to motivate you to stay parent or role model to motivate you to stay in school and keep learningin school and keep learning
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Llad Phillips 94
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Llad Phillips 95
Number of Responses Versus Score for Homicide
1 30 0 0 0 1 2 1
15
90
0
10
20
30
40
50
60
70
80
90
100
0 1 2 3 4 5 6 7 8 9 10
Score
Nu
mb
er2003
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Llad Phillips 96
Class Survey 2003Class Survey 2003
Scoring Ten BehaviorsScoring Ten Behaviors 113 Responses113 Responses No two are the sameNo two are the same Two most similar responsesTwo most similar responses Two most different responsesTwo most different responses
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Similar ScoringsSimilar ScoringsHomicide 10 10Poisoning 10 10Rape 10 10Arson 7 8Sell Heroin 7 5Auto Theft 4 7Embezzle 4 4Prostitute 5 2Possess Pot 3 1Sniff Glue 0 0
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Different ScoringsDifferent ScoringsHomicide 10 1Poisoning 10 5Rape 10 2Arson 10 4Sell Heroin 8 3Auto Theft 9 6Embezzle 7 7Prostitute 7 8Possess Pot 5 9Sniff Glue 8 10
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Number of Responses Versus Score for Homicide
1 30 0 0 0 1 2 1
15
90
0
10
20
30
40
50
60
70
80
90
100
0 1 2 3 4 5 6 7 8 9 10
Score
Nu
mb
er2003
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Dispersion Versus Median Score, 2003
0
0.5
1
1.5
2
2.5
0 2 4 6 8 10 12
Median Score
Dis
per
sio
n
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Econ 160 Fall 99 Class Ratings .
Sniff Glue
MarijuanaProstitute
Embezzlement
Sell HeroinAuto Theft
ArsonPoisoning
RapeHomicide
0.0
2.0
4.0
6.0
8.0
10.0
12.0
0.00 2.00 4.00 6.00 8.00 10.00 12.00
Standard Deviation: Dispersion
Mea
n R
atin
g
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SERIOUSNESS SURVEY
RATE THE SERIOUSNESS OF EACH OF THE FOLLOWING BEHAVIORS ON A SCALE FROM ZERO( LEAST SERIOUS) TO TEN( MOST SERIOUS):
MEDIAN ‘03 ‘051. HOMICIDE _10 10__2. MASS POISONING ( e.g. TYLENOL) _ 9 8__ 3. FORCIBLE RAPE _ 9 9__4. ARSON: SET FIRE TO A GARAGE _ 7 7__5. SELLING HEROIN _ 6 6__6. AUTO THEFT _ 5.5 6__7. EMBEZZLEMENT OF $1,000 _ 4 4__8. PROSTITUTE IN A HOUSE OF PROSTITUTION _ 3 3__9. POSSESSION OF MARIJUANA _ 2 2__10. SNIFFING GLUE _ 1 1__
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Misery Index, California 1952-2003
-5.00
0.00
5.00
10.00
15.00
20.00
25.00
1950 1960 1970 1980 1990 2000 2010
year
Rat
e
unemployment rate
inflation rate
misery index
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California Misery Index and Crime Index, 1952-2002
0.00
5.00
10.00
15.00
20.00
25.00
30.00
35.00
40.00
45.00
1950 1960 1970 1980 1990 2000 2010
Year
Ra
te
CA Misery Index
CA Crime Index Per 1000
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California: Crime Index Versus Misery Index .
1970
1992
1975
1998
1980
1952
0
5
10
15
20
25
30
35
40
0.00 5.00 10.00 15.00 20.00 25.00
Misery Index
Cri
me I
nd
ex
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How best to Learn in a Lecture classThat does notHave a Section?
We RecommendGoing to class.The questionsOn the examsAre from topicsDiscussed inClass.
How much math does 160 require?
1.Descriptive Graphs2. AnalyticalGraphs (exams)3. Notation e.gOF=f(CR,SE,SV)
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Homicide, W 06, 61 Respondents
0 0 0 0 1 0 0 07
53
0102030405060
1 2 3 4 5 6 7 8 9 10
Seriousness
Fre
qu
ency
Mode = 10, largest number of responsesMedian = 10, score of 31st person
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Homicide, W 05, 98 Respondents
1 2 0 1 0 0 1 3
16
74
0
20
40
60
80
1 2 3 4 5 6 7 8 9 10
Seriousness
Fre
qu
ency
Mode = 10, largest number of responsesMedian = 10, score of 49th person
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Number of Responses Versus Score for Homicide 2004
0
10
20
30
40
50
60
70
80
0 1 2 3 4 5 6 7 8 9 10
Score
Res
po
nse
s
1 1 3
14
73
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Rape, W 05, 98 Respondents
0 0 1 0 1 4 7
19
39
27
0
10
20
30
40
50
1 2 3 4 5 6 7 8 9 10
Seriousness
Fre
qu
en
cy
Mode = 9Median = 9
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Possession of Marijuana, W 06, 61 Respondents
33
96
25
2 2 1 0 10
10
20
30
40
1 2 3 4 5 6 7 8 9 10
Seriousness
Fre
qu
en
cy
Mode = 1Median = 1
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0 1 2 3 4 5 6 7 8 9 10
23
31
27
10
7
4 4 5
2
0 00
5
10
15
20
25
30
35
Fre
qu
enc
y
Score
Number of Responses Vs. Possession of Pot Score ‘02
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Disagreement Versus Seriousness, 02
Arson
Selling Heroin
Auto Theft
Embezzle
Mass Poisoning
Rape
Homicide
Prostitute
Possess Pot
Sniff Glue
0
0.5
1
1.5
2
2.5
3
0 2 4 6 8 10 12
Score
Dis
per
sio
n (
Sta
nd
ard
Dev
iati
on
)
Homicide2004
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Seriousness Scores, Spring 2001 .
Auto Theft
Arson
Selling Heroin
PoisoningMarijuana
Prostitute
Sniffing Glue
Rape
Homicide
0.00
0.50
1.00
1.50
2.00
2.50
3.00
0.0 2.0 4.0 6.0 8.0 10.0 12.0
Average
Embezzlement
Sta
ndar
d D
evia
tion
or
Dis
pers
ion
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John Tukey: Box Plot for Pot ‘09John Tukey: Box Plot for Pot ‘09
Smallest = 0
Q1 = 1
Median = 1
Q3 = 3
Largest = 8
IQR = 2
Outliers: 8, 8, 8, 7,
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