Part 2: GDP, Growth, and Fluctuations · •The Expenditures Approach: adds up all the expenditures...
Transcript of Part 2: GDP, Growth, and Fluctuations · •The Expenditures Approach: adds up all the expenditures...
CHAPTER 5
Measuring the Economy’s Output
1
Slides prepared by Bruno Fullone, George Brown College
© 2010 McGraw-Hill Ryerson Limited
PART 2: GDP, GROWTH AND
FLUCTUATIONS
• Learning Objective 5.1: How gross domestic product (GDP) is defined and measured
• Learning Objective 5.2 : Other measures of a nation’s production of goods and services
• Learning Objective 5.3 : The distinction between nominal GDP and real GDP
• Learning Objective 5.4 : The shortcomings of GDP as a measure of domestic output and well-being
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In This Chapter You Will Learn:
3 LO5.1
• Gross Domestic Product is:
• The main measure of the economy’s performance
• The total market value of all final goods and services produced annually within the boundaries of Canada
• A Monetary Measure
5.1 Measuring the Economy’s
Performance: GDP
4 LO5.1
• To avoid multiple counting, only final goods and services are counted
• Final goods: Goods and services purchased for final use and not for resale or further processing or manufacturing
• Intermediate goods are not counted
• Intermediate goods: Products purchased for resale or further processing or manufacturing
Avoiding Multiple Counting
5 LO5.1
(1) Stage of production
(2) Sales value of materials or product
(3) Value added
0
Firm A, sheep ranch $ 120 $120 (= $120 – $ 0)
Firm B, wool processor 180 60 (= 180 – 120)
Firm C, suit manufacturer 220 40 (= 220 – 180)
Firm D, clothing wholesaler 270 50 (= 270 – 220)
Firm E, retail clothier 350 80 (= 350 – 270)
Total sales value $1140
Value added (total income) $350
Value Added in a Five Stage
Production Process Table 5-2
6 LO5.1
Two types of nonproduction transactions:
1. Financial transactions
- Public Transfer Payments
- Private Transfer Payments
- Stock-Market Transactions
2. Second-hand sales
GDP Excludes Nonproduction
Transactions
Table 5-3 Calculating GDP in 2008: The
Expenditures Approach (billions of dollars)
. 8
Stock of
capital
January 1
Net
investment Stock
of
capital
December 31
Depreciation
Gross
Investment
Figure 5-1 Gross Investment, Depreciation, Net
Investment, and the Stock of Capital
9 LO5.1
• The Expenditures Approach: adds up all the expenditures made for final goods and services.
• The Expenditures Approach adds up
• personal consumption expenditures (C)
• gross investment (Ig)
• government purchases (G)
• Net exports (Xn) = exports (X) – imports (M)
Two Ways of Calculating GDP:
Expenditures and Income
Approach
Table 5-4 Calculating GDP in 2008: The
Income Approach (billions of dollars)
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Table 5-3 Calculating GDP in 2008:
The Expenditure Approach
GDP = C + IG+ G + XN
Table 5-3 GDP
($billions)
C 891
IG 309
G 375
XN 25
GDP $1600
5-1 Global Perspective
13 LO5.1
• The Income Approach: adds up expenditures that are allocated as income to those producing the output
• The Income Approach adds up • Wages, salaries, and supplementary labour income • Profits of corporations and government enterprises
before taxes • Interest and investment income • Net income of farm and unincorporated businesses • Taxes less subsidies on factors of production • Indirect taxes less subsidies on products • Capital consumption allowances
The Income Approach
©2006 McGraw-Hill
Ryerson Ltd.
Chapter 4.1 14
Table 5-4 Calculating GDP in 2008:
The Income Approach
Table 5-4 GDP ($billions)
Wages, salaries, etc. $823
Profits of corporations, etc. 2231
Interest & investment income 81
Net income of farms & unincorp. businesses 93
Taxes less subsidies on factors of prod. 70.0
Indirect taxes less subsidies on products 93
Capital consumption allowances 208
Statistical discrepancy 1
GDP at market prices 1600
15 LO5.2
• Gross National Product (GNP)
• -the total income that residents of a country earn within the year
• Net Domestic Product (NDP)
• -measures the total annual output that the entire economy can consume without impairing its capacity to produce in ensuing years
• Net National Income at Basic Prices (NNI)
• - includes all income earned through the use of Canadian-owned factors, whether they are located at home or abroad
5.2 Other National Accounts
16 LO5.2
• Personal Income (PI)
• - earned and unearned income available to resource suppliers and others before the payment of personal income taxes
• Disposable Income (DI)
• - personal income less personal taxes and other personal transfers to government
5.2 Other National Accounts
Global Perspective 5-1: Comparative
GDP
Source: World Bank
Selected Nations GDPs, 2007
United States Japan
Germany China
United Kingdom France
Italy Canada
Spain Brazil
Russia India
South Korea Mexico
Australia
0 1 2 3 4 5 6 7 8 9 10 12 13
GDP in Trillions of Dollars
18 LO5.3
• Nominal GDP
• - GDP measured in terms of the price level at the time of measurement (unadjusted for inflation)
• Real GDP
• - Nominal GDP adjusted for inflation.
5.3 Nominal GDP versus Real GDP
19 LO5.3
Year (1) Units of output (Q)
(2) Price of pizza per unit (P)
(3) Price index (year 1 = 100)
(4) Unadjusted, or nominal, GDP (Q) x (P)
(5) Adjusted, or real, GDP
1 5 $10 100 $50 $50
2 7 20 200 140 70
3 8 25 250 200 80
4 10 30 ? ? ?
5 11 28 ? ? ?
Table 5-5 Calculating Real GDP
20 LO5.3
• a measure of the price of a specified collection of goods and services, called a “market basket,” in a specific year as compared to the price of an identical (or highly similar) collection of goods and services in a reference year
Price Index
21 LO5.3
• Price index in specific year =
price of market basket in specific year x 100
price of same market basket in base year
For example, if in year 2, price of basket is $20
Price of same basket in base year is $10, then
price index, year 2 = $20 x 100 = 200
$10
How do we calculate a price index?
22 LO5.3
• Real GDP = nominal GDP x 100
price index
For example, if in year 2, nominal GDP is $140 and price index is 200, then
Real GDP = 140 x 100 = 70
200
How do we calculate Real GDP?
23 LO5.3
Year (1) Units of output (Q)
(2) Price of pizza per unit (P)
(3) Price index (year 1 = 100)
(4) Unadjusted, or nominal, GDP (Q) x (P)
(5) Adjusted, or real, GDP
1 5 $10 100 $50 $50
2 7 20 200 140 70
3 8 25 250 200 80
4 10 30 300 300 100
5 11 28 280 308 110
Revisiting Table 5-5 Calculating Real
GDP
24 LO5.3
An implicit price index
GDP deflator = nominal GDP x 100
real GDP
For example, if in year 2, nominal GDP = 140, real GDP = 70, then,
GDP deflator = 140 X 100 = 200
70
GDP Deflator
25 LO5.3
• Method 1:
• 1. Find nominal GDP for each year.
• 2. Compute a price index.
• 3. Divide each year’s nominal GDP by that year’s price index, then multiply by 100 to determine real GDP.
Table 5-6 Steps for Deriving Real
GDP from Nominal GDP
• Method 2:
• 1. Break down nominal GDP into physical quantities of output and prices for each year.
• 2. Find real GDP for each year by determining the dollar amount that each year’s physical output would have sold for if base-year prices had prevailed.
26 LO 5.3
Table 5-6 Steps for Deriving Real
GDP from Nominal GDP
27 LO5.3
• Links each year to the previous year through the use of both the prior-year prices and current-year prices.
• For example, the calculation of the chain-weighted index would use both 2008 and 2009 prices to calculate real GDP growth in 2009. Since the 2008 chain-weighted index was arrived at using both 2007 and 2008 prices, the year 2009 is linked back—as the links of a chain are—to 2008, 2007, and previous years as well.
Chain-Weighted Index
28 LO5.4
• Measurement Shortcomings: • Non-Market Transactions
• The Underground Economy
• Leisure
• Improved Quality
5.4 Shortcomings of GDP
29 LO5.4
• Shortcomings of the Well-Being Measure
• GDP AND THE ENVIRONMENT
• COMPOSITION AND DISTRIBUTION OF OUTPUT
• NONMATERIAL SOURCES OF WELL-BEING
5.4 Shortcomings of GDP
The Last Word: Value Added and
GDP
• The value added approach sums up the value of total output less the value of intermediate goods and services.
• The expenditure approach sums up the expenditure on final goods and services.
• The income approach tallies earnings of all factors of productions.
31 LO5.1
• The value added approach sums up the value of total output less the value of intermediate goods and services
• The expenditure approach sums up the expenditure on final goods and services
• The income approach tallies earnings of all factors of productions
The Last Word: Value Added and GDP
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5.1 Measuring the Economy’s Performance: GDP
5.2 Other National Accounts
5.3 Nominal GDP versus Real GDP
5.4 Shortcomings of GDP
Chapter 5 Summary