Measures of Economic Activity

# Measures of Economic Activity

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## Measures of Economic Activity

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1. Measures of Economic Activity By Michael Donnelly, Matt Bundas, Andrew Wong and Neraj Bakshi

2. Chapter Focus • Gross Domestic Product (GDP), and the two approaches to calculating it • The components of GDP • Per capita GDP, and how it may be used to compare GDPs of different years or different countries

3. Chapter Focus Cont. • Some limitations of GDP as an economic indicator • Other economic measures developed from the national income accounts

4. Recall • Recall that businesses track revenues and expenditures in their accounts thereby allowing managers and owners to pinpoint ways improving a businesses performance • Statistics Canada keeps track of the Canadian economy via national income accounts

5. National Income Accounts • Accounts showing the levels of total income and spending in the Canadian economy • Allow us to evaluate the performance of the Canadian economy and to compare it with other nations’ economies • Help government policymakers find ways to improve the economy

6. Gross Domestic Product (GDP) • The total dollar value at current prices of all final goods and services produced in Canada over a given period (usually a year) • Used to measure economic activity and can be developed from the national income accounts • The dollar value is used when calculating GDP because it simplifies the calculations • Also because the dollar value is a way to quantify and combine a wide range of goods and services

7. How to Calculate GDP… • There are 2 ways to calculate GDP: • Income Approach: a method of calculating GDP by adding together all incomes in the economy • Expenditure Approach: a method of calculation GDP by adding together all spending in the economy

8. The GDP Identity • GDP calculated as total income is identical to GDP calculated as total spending GDP expressed as total income ≡ GDP expressed as total spending • This applies to the entire Canadian economy, not just the simplified economy shown in Figure 10.2

9. Breakdown of Figure 10.2 • In short, because all spending on final consumer products ends up as some form of household income, annual income equals annual spending • This explains the GDP Identity

10. Breakdown of the Income Approach • Made up of 7 categories • Wages and Salaries • Corporate Profits • Interest Income • Proprietors’ Incomes and Rents • These form the basis of GDP calculated using the income approach

11. Breakdown of the Income Approach Cont. • Indirect Taxes • Depreciation • Statistical Discrepancy • These are added on by Statistics Canada in order to balance GDP calculated by the income approach with GDP calculated by the expenditure approach • Using the income approach, GDP is the sum of all 7 categories

12. Wages and Salaries • Largest income category • Represents close to 60% of GDP • Includes direct payments to workers in both businesses and government as well as employee benefits such as contributions to employee pension funds

13. Corporate Profits • Includes all of the profits declared to the government by corporate businesses such as the profits paid as corporate income tax, the profits paid out to corporate shareholders as dividends and retained earnings • Retained Earnings: profits kept by businesses for new investment

14. Interest Income • Includes interest paid on business loans and bonds and income such as royalty payments (the latter occurring less frequently) • Includes adjustments to the value of businesses’ unsold products • Does not include interest payments made by consumers and government because these are viewed as transfers of purchasing power

15. Proprietors’ Incomes and Rents • This includes the earnings made by sole proprietorships, partnerships, self-employed professionals, farmers as well as the income to landlords from renting property • Recall that incomes are received by owners of proprietorships for supplying various types of resources to their business

16. Indirect Taxes • Taxes that are charged on products rather then be applied to households or businesses (i.e.: P.S.T) • Not included in the GDP with the income approach, but rather with the expenditure approach • To balance the results from the 2 approaches, taxes -- subsidies that businesses receive are added to income-based GDP

17. Depreciation • Like indirect taxes, must also be added to the income approach • Includes durable assets such as buildings, equipment and tools that eventually wear out and need to be replaced • Considered a cost of business and shows up in the expenditure approach

18. Statistical Discrepancy • GDP figures are actually estimates due to businesses/persons records being faulty or missing • The discrepancy between the two approaches is known as the statistical discrepancy • This can be seen in Figure 10.3

19. Breakdown of Figure 10.3 • To balance the two figures, Statistics Canada divides the difference between the two approaches • Discrepancy was \$4.8 billion. Half the amount (\$2.4 billion) is added to the lower figure (income-based estimate of GDP), and half is deducted from the higher figure (expenditure-based estimate of GDP)

20. The Expenditure Approach • GDP found using this approach is the sum of purchases in the product markets

21. Categories of Products • Final Products: products that will not be processed further and will not be resold • Intermediate Products: products that will be processed further or will be resold • Ex: Flour that is bought by a household for home baking is a final product. Flour that is bought by a bakery to make bread to be sold is an intermediate product

22. Double Counting • This occurs when the values of all products, both final and intermediate are included in the GDP calculations • Would cause estimates to be too high & not reflect the real activity in the economy

23. End of Day 1 Thanks for your time!

24. Value Added • In order to prevent double counting, the concept of value added is applied to the GDP • Value Added: the extra worth of product at each stage in its production; a concept used to avoid double counting in calculating GDP • Figure 10. 4 uses a pad of paper at each level of production, the results of double counting and how the concept of vales added deals with it

25. Categories of Purchases • Recall that expenditure -based GDP is calculated on the basis of almost all purchases in the Canadian economy • Few products are excluded • Those that are included, fall under 4 distinct categories

26. Excluded Purchases • There are two types of excluded purchases: financial exchanges and second-hand purchases • These are excluded because they are not related to current production

27. Financial Exchanges • This includes a gift of money between family members and is not included in the GDP • This is a transfer of of purchasing power from one party to another • Also excluded are bank deposits and purchases of stock

28. Second-Hand Purchases • A.K.A, used goods • Excluded from GDP because they have been accounted for previously in their very first transaction to their original owner (first consumer) • In brief, if they were included, GDP would double count and thus overestimate

29. Included Purchases • Included in the GDP calculations • Personal consumption (C) • Gross investment (I) • Government purchases (G) • Net exports (X-M) • Each contribute to the the economy

30. Expenditure Equation GDP = C + I + G + ( X - M )

31. Personal Consumption • Household spending on goods and services. • Make up 60% of the GDP • Goods include: nondurable and durable • Nondurable: goods that are consumed just once. Ex: food • Durable: goods that are consumed repeatedly over time. Ex: bikes and CD’s

32. Gross Investment • Purchases of assets that are intended to produce revenue. • Makes up 15-25% of the GDP year-year • Most important spending in this category is on capital goods (machines etc) used by businesses • Also included are expenditures by government agencies into capital goods

33. Gross Investment Cont. • Related to the economy’s capital stock • The total value of productive assets that provide a flow of revenue • Recall that capital such as machinery depreciate in value • Net investment is the gross investment minus depreciation • Represents the yearly change in the economy’s stock of capital • Capital stock is the total value of productive assets that provide a flow of revenue

34. Breakdown of Fig. 10.5 • An economy has \$200 billion of capital stock at the beginning of the year • It depreciates by \$40 billion during the year • Gross investment during the same period is \$100 billion thus the net investment is \$60 billion (100-40) • The \$60 billion represents the amount that the capital stock expanded during the year • Thus by the end of the year, the economy’s capital stock is \$260 billion (200+60)

35. Gross Investment Cont. • Also includes: • inventories of different companies stocks of unsold goods and materials • Building construction with owner-occupied housing • Included here instead of personal consumption because the owner could rent it out for a profit

36. Government Purchases • Include current spending by all levels of government on goods and services • Make up 20% of GDP • Ex: The federal government buying a battleship for the Navy, or a municipality hiring a paving company to repair roads • Fig. 10.7 shows the role of government in the economy’s circular flow of money

37. Net Exports • Final category of purchase and includes the purchases of Canadian goods and services by foreigners, or exports • This is calculated via the exports -- imports • This is done because while exports include an American furniture store buying Canadian softwood, imports include a Canadian paintball player buying an American paintball gun • Represented as net exports, they make up a small % of GDP, yet viewed independently of each other, they each make up about 25% of the GDP

38. Breakdown of Fig. 10.8 • Shows the roles of exports and imports in the economy • Foreigners also play a part in the economy by lending/borrowing from financial markets • Foreign involvement tends to create a net increase in the economy • Foreign loans to the Canadian economy > Canadian loans to foreigners

39. GDP and Living Standards • GDP can be used to determine our standard of living via per capita GDP • This is the GDP per person and is calculated as GDP/population • In short, per capita GDP is the total \$ value of output per person • Ex: in 1993 our GDP was \$710 723 million and our population was 28.753 million.  our per capita GDP was \$24, 718 per person