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ECO 102
Macroeconomics
Why are all taxi drivers in Riyadh
from some place else?
GDP
Per
Capita
Saudi Arabia $25,000
India $1,500
Pakistan $1,261
Bangladesh $800
16.7 times more
19.8 times more
31.2 times more
202 lecture 1
202 lecture 1
Damman No. 7
March 3,1938
Dhahran
Standard Oil
Rockefeller
World’s most
valuable company
202 lecture 1
202 lecture 1
202 lecture 1
Energy Density MJ/kg
24 44 55 80,620,000
202 lecture 1
202 lecture 1
Why are some
countries rich
and others poor?
Energy?
Saudi Economics
202 lecture 1
202 lecture 1
202 lecture 1
Syllabus
Time Commitment
Class 3
Hours
Homework 6 Hours
Total 9
Hours
af102.blogspot.com
Logon and post your name
and student ID number
Macro Micro
Science
Hard
Soft
Most people
Most of the time
Economics is a
Soft Science
What is Wealth?
What People Want
Get wealthy
by making
others happy
Ideas
occur in minds
not places
Hockey 

Stick

Trends
$3
Angus Maddison
Income

Per

Person

Per

Day
20121

AD
$100
20121

AD
$3
$100
$30
World 

10x
Northern Europe

North America

33x
1820
Angus Maddison
“The Millennium–Poor Until 1820”
Income

Per

Person

Per

Day
GDP
Gross Domestic Product
The market value of all
final goods and services
produced in a country in
a given time
GDP
How much stuff a
country makes
GDP
Per Capita
GDP Per Person
Average GDP
GDP $750 billion
Population 30 million
GDP Per Capita $25,000
MarketValue
What something
would sell for
202 lecture 1
MarketValue
One Apple
plus
One Orange
= Three Riyals
All
Everything except...
Stuff you don’t sell
Final
Intermediate
Final
Final
Intermediate
Goods and
Services
Goods
Services
Produced
New Stuff
Does not include the
sale of used goods
Within a
Country
Only
production
within Saudi
Arabia
In a given period
of time
Year Y/Y
Quarter Q/Q
Annualized: Q x 4
Percentage
Change
new number - old number
old number
ThisYear - LastYear
LastYear
ThisYear = 75
LastYear = 60
Percentage Change?
75 - 60
60
15
60
.25 or 25%
How do you
calculate
GDP?
GDP =C = Consumption
I = Investment
G = Government
X = Exports
M = Imports
GDP =
C + I + G + (X - M)
Consumption
Spending by
households on
goods and services,
except new housing
Investment
Spending on capital
equipment, inventories, and
structures, including new
housing
Government
Spending on goods
and services from
local, state, and
federal governments.
Net Exports
Exports minus
imports
Net Exports
Foreigners buying
exports minus
domestic residents
buying foreign goods
What is GDP?
C = 105
I = 40
G = 25
X = 30
M = 20
What is GDP?
C = 105
I = 40
G = 25
E = 30
I = 20
GDP
= C + I + G + (X - M)
= 105 + 40 + 25 +(30-20)
= 105 + 40 + 25 +10
= 180

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202 lecture 1