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Macroeconomics
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The study of aggregate economic activity
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National income accounting
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A framework for calculating gross domestic product(GDP), which is a measure of aggregate economic output.
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How GDP is measured
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Can be measured in three different ways, and in principle these three methods should all yield the same answer: Production = Expenditure = Income
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GDP limitations
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Has limitations as a measure of economic activity and as a measure of economic will being.
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Income per capita
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Is the income per person. This is calculated by dividing a nation's aggregate income by the number of people in the country.
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Recessions
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They are periods( lasting at least two quarters) in which aggregate economic output falls.
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Unemployed
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1. He or she does not have a job, 2. Has actively looked for work in the prior four weeks, 3. Is currently available for work.
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Unemployment rate
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Is the fraction of the labor force that is unemployed.
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National income accounts
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Measure the level of aggregate economic activity in a country.
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National Income and Product Accounts(NIPA)
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The system of national income account that used by the U.S. Government
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Gross Domestic Product, GDP
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Is the market value of the final goods and services produced within the borders of a country during a particular period of time.
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Identity
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Two variables are related by this when the two variables are defined in a way that makes them mathematically identical.
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Factors of Production
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The inputs to the production process( capital and labor or physical capital—land, factories, and machines.)
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Value added
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Production-based accounting measures each firm's this, which is the firm's sales revenue minus the firm's purchases of intermediate products from other firms.
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Consumption
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Is the market value of consumption goods and consumption services that are brought by domestic households.
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Investment
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Is the market value of new physical capital that is brought by domestic households and domestic firms.( not bonds or stocks)
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Government Expenditure
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Is the market value of government purchases of goods and services.Excludes transfer payments(social security) and excludes interest paid on government debt.
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Exports
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Are the market value of all domestically produced goods and services that are purchased by households, firms, and governments in foreign countries.
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Imports
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Are the market value of all foreign-produced goods and services that are sold to domestic households, domestic firms, and the domestic government.
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National Income Accounting Identity
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Y=C+I+G+X-M
GDP = consumption + investment + government expenditure + exports - imports.
GDP = consumption + investment + government expenditure + exports - imports.
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Labor income
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Is any form of payment that compensates people for their work.
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Capital income
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Is any form of payment that derives from owning physical or financial capital.
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What's not in GDP?
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1. Physical capital Depreciation, 2. Home Productiom, 3. The Underground Economy, 4. Negative Externalities,5. GNP, 6. Leisure
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Gross National product(GNP)
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The market value of production generated by the factors of production—both capital and labor— possessed or owned by the residents of a particular nation.
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Does GDP buy Happiness?
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GDP per capita turns out to be an excellent predictor of life satisfaction.
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Nominal GDP
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Is the total value of production(final goods and services), using current market prices, to determine the value of each unit that is produced.
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Real GDP
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Is the total value of production(final goods and services), using market prices from a specific base year to determine the value of each unit that is produced.
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Real GDP growth
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The growth rate of real GDP.
Real GDP2013= (Real GDP2013)-(Real GDP2012)/(Real GDP2012)
(New-odd)/odd
Real GDP2013= (Real GDP2013)-(Real GDP2012)/(Real GDP2012)
(New-odd)/odd
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GDP deflator
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Is 100 times the ratio of nominal GDP to real GDP is the same year. It is a measure of how prices of goods and services produced in a country have risen since the base year.
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Consumer Price Index(CPI)
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Is 100 times the ration of the cost of buying a basket of consumer goods using 2013 prices divided by the cost of buying the same basket of consumer goods using base-year prices.
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Inflation rate
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The rate of increase in prices. It is calculated as the year-over-year percentage increase in a price index
Inflation rate2013= (Price Index in 2013) - (Price Index in 2012)/ price index 2012
Inflation rate2013= (Price Index in 2013) - (Price Index in 2012)/ price index 2012
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Adjusting nominal variables
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Value in 2013 = (Price index in 2013)/(Price index in 1909) x Value in 1909 dollars