1 measuring a nation’s income chapter 10. 2 definition gdp: market value of final goods and...
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Measuring a Nation’s Income
Chapter 10
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Definition
GDP: market value of final goods and services produced in a country in a given year
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Definition
GDP: market value of final goods and services produced in a country in a given year
Only goods purchased or put into inventory Only transactions officially recorded (illegal
and under-the-table transactions not included.)
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Definition
GDP: market value of final goods and services produced in a country in a given year
Intermediate goods (inputs) not included
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Definition
GDP: market value of final goods and services produced in a country in a given year
Services make up almost half the GDP
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Definition
GDP: market value of final goods and services produced in a country in a given year
GDP is a flow. The level corresponds to the amount produced in a year.
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$15.8 trillion 2012Q4U.S. Department of Commerce: Bureau of Economic Analysis
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The Circular-Flow Diagram
Households: own the factors of production,
sell/rent them to firms for income buy and consume goods & services
Households: own the factors of production,
sell/rent them to firms for income buy and consume goods & services
Households
Firms: buy/hire factors of production,
use them to produce goods and services
sell goods & services
Firms: buy/hire factors of production,
use them to produce goods and services
sell goods & services 9
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The Circular-Flow Diagram
Income (=GDP)Wages, rent, profit (=GDP)
Factors of production
Labor, land, capital
Spending (=GDP)
G & S bought
G & S sold
Revenue (=GDP)
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GDPDollar flow ofexpenditureson final goods
=Dollar flow of
income (and indirect cost) of final goods
=
Two Ways of Measuring GDP
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GDP: output produced within the US border
GNP: income earned by US citizens
Bureau of Economic Analysis switched to GDP as key measure in 1991.
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Components of GDP
C: consumption
I : investment in plant & equipment
G: government spending
X-M: net exports
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Components of GDP
C: consumption
I : investment in plant & equipment
G: government spending
X-M: net exports
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Components of GDP
C: consumption
I : investment in plant & equipment
G: government spending
X-M: net exports
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Investment includes residential housing …
… and imputed rental payments are included in consumption.
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Investment includes inventories
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Components of GDP
C: consumption
I : investment in plant & equipment
G: government spending
X-M: net exports
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Government spending does not include transfer payments
Transfer payments include Social Security, Welfare, Unemployment Insurance
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Components of GDP
C: consumption
I : investment in plant & equipment
G: government spending
X-M: net exports
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X-M is negative for U.S.
Imports are subtracted because they are included in C, I and G
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U.S. GDP and Its Components, 2012
–1,915
9,767
6,657
35,459
$49,968
per capita
–3.8
19.5
13.3
71.0
100.0
% of GDP
–598
3,048
2,078
11,068
$15,596
billions
NX
G
I
C
Y
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ACTIVE LEARNING ACTIVE LEARNING 1
GDP and its componentsGDP and its componentsIn each of the following cases, determine how much GDP and each of its components is affected (if at all).
A. Debbie spends $200 to buy her husband dinner at the finest restaurant in Boston.
B. Sarah spends $1800 on a new laptop to use in her publishing business. The laptop was built in China.
C. Jane spends $1200 on a computer to use in her editing business. She got last year’s model on sale for a great price from a local manufacturer.
D. General Motors builds $500 million worth of cars, but consumers only buy $470 million worth of them.
© 2013 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part, except for use as permitted in a license distributed with a certain product or service or otherwise on a password-protected website for classroom use.
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Real vs Nominal
Nominal GDP: GDP measured in current dollars.
Real GDP: GDP adjusted for inflation, measured in base year dollars.
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Nominal and Real GDP in the U.S., 1965–2012
Real GDP (base year
2005)
Nominal GDP
billi
ons
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EXAMPLE:
Compute nominal GDP in each year:
2011: $10 x 400 + $2 x 1000 = $6,000
2012: $11 x 500 + $2.50 x 1100 = $8,250
2013: $12 x 600 + $3 x 1200 = $10,800
Pizza Latte
year P Q P Q
2011 $10 400 $2.00 1000
2012 $11 500 $2.50 1100
2013 $12 600 $3.00 1200
37.5%
Increase:
30.9%
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EXAMPLE:
Compute real GDP in each year, using 2011 as the base year:
Pizza Latte
year P Q P Q
2011 $10 400 $2.00 1000
2012 $11 500 $2.50 1100
2013 $12 600 $3.00 1200
20.0%
Increase:
16.7%
$10 $2.00
2011: $10 x 400 + $2 x 1000 = $6,000
2012: $10 x 500 + $2 x 1100 = $7,200
2013: $10 x 600 + $2 x 1200 = $8,40027
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EXAMPLE:
In each year,
• nominal GDP is measured using the (then) current prices.
• real GDP is measured using constant prices from the base year (2011 in this example).
yearNominal
GDPReal GDP
2011 $6000 $6000
2012 $8250 $7200
2013 $10,800 $8400
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EXAMPLE:
• The change in nominal GDP reflects both prices and quantities.
yearNominal
GDPReal GDP
2011 $6000 $6000
2012 $8250 $7200
2013 $10,800 $8400
20.0%
16.7%
37.5%
30.9%
The change in real GDP is the amount that GDP would change if prices were constant (i.e., if zero inflation).
Hence, real GDP is corrected for inflation. 29
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The GDP Deflator
One way to measure the economy’s inflation rate is to compute the percentage increase in the GDP deflator from one year to the next.
GDP deflator = 100 x GDP deflator = 100 x nominal GDP
real GDP
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EXAMPLE:
Compute the GDP deflator in each year:
yearNominal
GDPReal GDP
GDP Deflator
2011 $6000 $6000
2012 $8250 $7200
2013 $10,800 $8400
2011: 100 x (6000/6000) = 100.0
100.0
2012: 100 x (8250/7200) = 114.6
114.6
2013: 100 x (10,800/8400) = 128.6
128.6
14.6%
12.2%
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GDP & Well-being
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GDP and Life Expectancy in 12 countries
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Lif
e e
xp
ec
tan
cy
(y
ears
)
Real GDP per capita
U.S.Germany
Japan
Mexico
Russia
Brazil
China
India
Indonesia
Pakistan
Bangladesh
Nigeria
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GDP and Literacy in 12 countries
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Ad
ult
Lit
era
cy
(%
of
po
pu
lati
on
)
Real GDP per capita
U.S.Germany Japan
Mexico
Russia
Brazil
China
India
Indonesia
Nigeria
Pakistan
Bangladesh
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GDP and Internet Usage in 12 countries
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Inte
rne
t U
sa
ge
(%
of
po
pu
lati
on
)
Real GDP per capita
U.S.
Germany
Japan
Mexico
Russia
Brazil
ChinaIndia
Indonesia
Nigeria
Bangladesh
Pakistan
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Gross Domestic Product…“… does not allow for the health of our children, the quality of their education,
or the joy of their play. It does not include the beauty of our poetry or the strength of our marriages, the intelligence of our public debate or the integrity
of our public officials. It measures neither our courage, nor our wisdom, nor our devotion to our country.
It measures everything, in short, except that which makes life worthwhile, and it can tell us everything about America except why we are proud that we are Americans.”
- Senator Robert Kennedy, 1968
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What is the effect on the GDP of an increase in labor force participation of women?
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Shortcomings of GDP has a measure of well being.
– does not count non-market production.
– does not count the underground economy.
– makes no adjustment for leisure.
– probably understates output increases because of the problem
of estimating improvements in the quality of products.
– does not adjust for harmful side effects.
– does not account for the uneven distribution of income.
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Bhutan:Gross National Happiness
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Spans over 38,394 square km of mountainous terrain
Population - 600,000
Bhutan – basic facts
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Communities and villages are often isolated from each other by harsh, mountainous terrain
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An urban center in Bhutan