Economics 102: Principles of Macroeconomics
Chapter 20
20.1 National Output and Value Added
Production occur in stages, output from one firm may become an input for other firms
o Double counting: values of products that are counted more than once
Once as an output, and again as an input for another product
May be counted more than two times if the process continues (inputs to outputs)
Intermediate goods: outputs of firms that are used as inputs by other firms
Final goods: products not used as inputs by other firms (not in the period in consideration)
o Difficult to know if outputs at one point become an input
Value added: value that firms add to products beyond the cost of intermediate goods
o
o
This ignores the value of indirect taxes (GST)
Net value: the firm's value that is added to the final product
o
This is the firm's contribution to the nation's total output (added to GDP)
The sum of all values added in an economy is a measure of the economy's total output
20.2 National Income Accounting: The Basics
National Income and Expenditure Accounts (NIEA): measures national income and
national product
o Structured based on the flow of income and economic data
o Includes the flow of national income and expenditure
The value of domestic output is equal to the value of the expenditure on that output
o Also equal to the total income claims generated by producing that output
Value added, flow of expenditure and flow of income, are used to measure national income
o
All three methods will output the same calculation
GDP from the Expenditure Side:
Total expenditure: sum of consumption, investment, government purchases and net exports
o
All expenditure of final products falls into one of these categories
Consumption Expenditure:
Consumption expenditure (C): household expenditure on all goods and services
o Expenditure on all goods and services sold to their final users during that year
Investment Expenditure:
Investment expenditure (I): expenditure on production of goods not for present
consumption
Investment goods: inventories, capital goods (factories, tools etc.) and residential housing
Changes in Inventories:
Inventories: stocks of a firm's inputs and outputs
o Allows for constant production and to meet orders despite fluctuations in production
Accumulation of inventories counts as positive investments during the year for a firm
o Represents goods produced, but not used for current consumption Economics 102: Principles of Macroeconomics
o Counted in national income, including wages and other costs production costs
Includes the profit the firm will make with the sale of the good/service
Decumulation: the lowering of inventories through sale (negative investment)
o
Represents a reduction in the stock of finished goods that are available for sale
New Plant and Equipment:
Capital goods: manufactured aids to production (tools, machinery, factory buildings etc.)
Capital stock: an economy's total quantity of capital goods
Business fixed investment (fixed investment): creating new capital goods (investment)
New Residential Housing:
A house or apartment (durable asset) that yields its utility over a period of time
o Building a new house counts as investment expenditure
o
The purchase of homes from others does not count
Gross and Net Investment:
Gross investment: total investment that occurs in the economy
o Divided into replacement investment and net investment
Replacement investment: investment to replace capital stock lost through depreciation
o Depreciation: amount of capital stock that is depleted through the production process
o Positive net investment: the economy's capital stock is growing
o Negative net investment: the economy's capital stock is shrinking (rarely happens)
All investment goods are part of the nation's total current output
o The production creates income whether it is new or a replacement investment
Government Purchases:
Governments provide goods and services that households want
Government purchases (g): government expenditure on produces goods and services
Cost Versus Market Value:
Government output is usually valued at cost rather than market value
o Difficult to value some services (incomparable to the public sector)
o Value may fluctuate with the movement of labour (public to private etc.)
Government Purchases Versus Government Expenditure:
Only government purchases of produced goods and services count towards GDP
o Most of government expenditure does not count towards GDP
o Pensions, welfare, government bond interest etc. does not count towards GDP
Transfer payments: payment to an individual/institution not in exchange for a good/service
o Counts the same as any other consumption expenditure
Net Exports:
Imports: domestic expenditure on foreign-produced goods and services
Exports: foreign expenditure on domestically produced goods and services Economics 102: Principles of Macroeconomics
Imports:
Expenditure on foreign made goods/services mainly contribute to GDP of other countries
Expenditure on domestic products consumed in other countries increase Canadian GDP
Exports:
Exports contribute to GDP and to the incomes of contributing workers
o Not included in consumption, investment or government expenditure
Total Expenditures:
GDP measured from the expenditure side used the four major expenditure categories
o
GDP from the Income Side:
National income ensures output generates income equal to the value of production
o Labour must be employed, land rented, capital used etc.
Calculation of GDP from the income side involves adding factor income
o Also accounts for other clams on the value of output
Factor Incomes:
National income accountants distinguish factor incomes as wages/salaries, interest and
business profits
Wages and Salaries:
Wages/salaries are payments for services of labour (pre-tax labour earnings)
o Pre-tax earnings: tax home pay, before income tax deductions, EI, pensions etc.
Wages/salaries represent the part of the value of production that is paid to labour
Interest:
Includes interest earned on bank deposits, loans to firms and other investments
o Excluded interest income earned from loans to the Canadian government
Business Profits
Retained earnings: all profits made after dividends to owners are issued
o Dividends and retained earnings are included in the calculation of GDP
o Includes profits from corporations, unincorporated, partnerships, Crown corporation
Profits and interest represent the payment for the use of capital
o Interest for borrowed capital and profits for capital contributed by owners
Net Domestic Income:
Net domesti
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