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National Income Accounting
Depression—Surprise!•   After being blind-sided by the Great Depression, policymakers    decided that they needed measures...
Macroeconomics and national income accounts• GDP and its measurement• Output approach, income approach and  expenditure ap...
National income accounting• National income accounting is about measuring  economic activity• One of the most comprehensiv...
Gross Domestic Product• Gross Domestic Product (GDP) is the most widely  reported measure to indicate a country’s economic...
Gross National Product• Gross National Product (GNP) is the market value  of all goods and services produced by nationals ...
GDP vs. GNP• Gross Domestic Product (GDP) is the total value of final  goods and services produced during a given period w...
GDP andCircular Flow
Points to remember when measuring GDP...(a) Secondhand transactions are not included (since merely    exchanges of previou...
Three different ways of measuring GDP• Output approach, income approach, expenditure approach• GDP may be measured as the ...
GDP asValued-Added
Measuring value addedStage of production Value of Sales Value Added1 – Oil Drilling    $0.50         $0.502 – Refining    ...
• GDP may be measured as the total income earned  by the factors of production (i.e. land, labour and  capital) derived fr...
• The income and expenditure measures are expressed in  monetary terms at the market prices that prevail (i.e. at  current...
WhatIncreased?
Three Key Price Indexes•   Consumer Price Index (CPI)     – measures the impact of price changes on the cost of the typica...
Composition of CPI
The Expenditure approach is important for  highlighting linkages between macroeconomic  indicators ….
Component parts of expenditure based GDP•   UK GDP (Y), 2003 estimated (billion) = £1,099.4    a) Consumption expenditure ...
National Accounts Identity(1)    Y=C+I+G+X-M
Gross domestic product           or ‘grossly deceptive product’?• Non-market transactions   – The ‘care’ economy (underest...
• This list of omissions suggests that GDP figures  are a dubious guide to the quality of life in  different countries• Ne...
Other national accounts• GDP + Net Factor Income (NFI) = GNP• Net National Product (NNP) = GNP - Depreciation   (depreciat...
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Gross National Product

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Transcript of "Gross National Product"

  1. 1. National Income Accounting
  2. 2. Depression—Surprise!• After being blind-sided by the Great Depression, policymakers decided that they needed measures of economic activity.• A Keynesian economist, Simon Kuznets, was charged with establishing the methodology for this in the late 1930s.• Kuznets later received the Nobel Prize for his efforts.
  3. 3. Macroeconomics and national income accounts• GDP and its measurement• Output approach, income approach and expenditure approach• The components of GDP• From GDP to GNP to National Income• How good an indicator of a country’s living standards is GDP?
  4. 4. National income accounting• National income accounting is about measuring economic activity• One of the most comprehensive measures of a country’s economic activity is the value of total production of its goods and services, called national product• The rate of economic growth is an important indicator of a country’s economic performance (although a high growth rate does not necessarily lead to less poverty)
  5. 5. Gross Domestic Product• Gross Domestic Product (GDP) is the most widely reported measure to indicate a country’s economic performance• GDP is the market value of all final goods and services produced in a nation during a specific period of time, usually a quarter or a year
  6. 6. Gross National Product• Gross National Product (GNP) is the market value of all goods and services produced by nationals (e.g. UK citizens) wherever they are located.• GDP/GNP are expressed in monetary terms, thus rely on the markets to establish the relative values of goods and services
  7. 7. GDP vs. GNP• Gross Domestic Product (GDP) is the total value of final goods and services produced during a given period within the geographic boundaries of a country regardless of by whom. The goods and services are produced domestically.• Gross National Product (GNP) is the total value of final goods and services produced during a given period by the citizens of a country no matter where they live. The goods and services are produced by the “nationals” of the country.
  8. 8. GDP andCircular Flow
  9. 9. Points to remember when measuring GDP...(a) Secondhand transactions are not included (since merely exchanges of previously produced goods)(b) Private or public transfer payments are not counted (e.g. unemployment insurance benefits – not made in exchange of a service => no new production)(c) Only final goods, intermediate goods not included (e.g. bread yes, flour no) => If any of these items were included in the calculations, the measurement of economic activity would be subject to ‘double-counting’(d) Excludes financial transactions and income transfers since these do not reflect production.
  10. 10. Three different ways of measuring GDP• Output approach, income approach, expenditure approach• GDP may be measured as the total output of final goods and services. This uses the concept of value added – Value added: difference between the value of a good as it leaves a stage of production and the costs of that good as it entered that stage – Summing the ‘value-added’ of the different stages of production gives the total value of economic activity
  11. 11. GDP asValued-Added
  12. 12. Measuring value addedStage of production Value of Sales Value Added1 – Oil Drilling $0.50 $0.502 – Refining $0.65 $0.153 – Shipping $0.80 $0.154 – Retail Sale $1.00 $0.20Total Value Added $1.00
  13. 13. • GDP may be measured as the total income earned by the factors of production (i.e. land, labour and capital) derived from producing the output => sum of factor incomes• GDP may be measured by using the expenditure on total output. It is measured initially at market prices, including indirect taxes such as VAT but excluding subsidies. This approach provides a very useful identity Y = C + I + G + X – M(see why in a couple of slides!)
  14. 14. • The income and expenditure measures are expressed in monetary terms at the market prices that prevail (i.e. at current prices or in nominal terms)• Nominal GDP (p x q) can grow because of three reasons: – Output (q) rises and prices remain unchanged – Prices (p) rise and output remains unchanged – Both output and prices rise• In order to control for price changes GDP can be calculated using a base set of prices. The real measures can then be obtained by deflating GDP by a relevant price index
  15. 15. WhatIncreased?
  16. 16. Three Key Price Indexes• Consumer Price Index (CPI) – measures the impact of price changes on the cost of the typical bundle of goods and services purchased by households.• Producer Price Index (PPI) – A measure of the average prices received by producers for raw materials, intermediate, and final goods. The PPI used to be called the Wholesale Price Index (WPI).• GDP Deflator (GDP Price Index or GDPPI) – Is a broader price index than the CPI. It is designed to measure the change in the average price of all the goods and services included in GDP.
  17. 17. Composition of CPI
  18. 18. The Expenditure approach is important for highlighting linkages between macroeconomic indicators ….
  19. 19. Component parts of expenditure based GDP• UK GDP (Y), 2003 estimated (billion) = £1,099.4 a) Consumption expenditure (C) = £951.4 (on durables, non-durables, services) b) Investment (I) = £175.8 (stock-building, capital formation, housing) c) Government expenditure (G) = £231.7 (roads, health, education, but not transfer payments) d) Exports of goods and services (X) = £276.0 e) Imports of goods and services (M) = £308.4 (C, I,G have import component, thus M need to be subtracted from economic activity)
  20. 20. National Accounts Identity(1) Y=C+I+G+X-M
  21. 21. Gross domestic product or ‘grossly deceptive product’?• Non-market transactions – The ‘care’ economy (underestimation of housewives/husbands work) – Subsistence agriculture• Distribution, nature and quality of goods produced• Leisure time• The hidden economy – Illegal activities – Informal sector• Economic ‘bads’ – No distinction between green and polluting industries
  22. 22. • This list of omissions suggests that GDP figures are a dubious guide to the quality of life in different countries• Nevertheless GDP per capita is used a broad indicator of living standards• Examples of alternative measures: – HDI (weighted average of life expectancy, education and income)
  23. 23. Other national accounts• GDP + Net Factor Income (NFI) = GNP• Net National Product (NNP) = GNP - Depreciation (depreciation: estimate of the capital worn out by producing GDP)• National Income: total income earned by the owners of resources, including wages, rents, interest and profits NI = NNP - indirect taxes [taxes on goods sold, e.g. VAT]• Personal Income: total income received by households that is available for consumption, saving and the payment of personal taxes• Personal disposable Income (PDI): Personal Income minus personal income taxes plus transfer payments received by individuals – PDI = PI – income taxes + transfers
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