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Labor Force
the total number of workers, including both the employed and the unemployed.
Labor force = Number of employed + Number of unemployed
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unemployment rate
the percentage of the labor force that is unemployed
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labor-force participation rate
- the precentage of the adult population that is in the labor force.

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natural rate of unemployment
the normal rate of unemployment around which the unemployment rate fluctuates.
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cyclical unemployment
the deviation of unemployment from its natural rate
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discouraged workers
individuals who would like to work but have given up looking for a job
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frictional unemployment
unemployment that results because it takes time for workers to search for the jobs that best suit their tastes and skills
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structural unemployment
unemployment that results because the number of jobs available in some labor markets is insufficient to provide a job for everyone who wants one
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job search
the process by which workers find appropriate jobs given their tastes and skills
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unemployment insurance
a government program that partially protects workers' incomes when they become unemployed
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union
a worker association that bargains with employers over wages and working conditions
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collective bargaining
the process by which unions and firms agree on the terms of employment
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strike
the organized withdrawal of labor from a firm by a union
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efficiency wages
above-equilibrium wages paid by firms in order to increase worker productivity
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money
the set of assets in an economy that people regularly use to buy goods and services from other peopl
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medium of exchange
an item that buyers give to sellers when they want to purchase goods and services
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unit of account
the yardstick people use to post prices and record debts
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store of value
an item that people can use to transfer purchasing power from the present to the future
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liquidity
the ease with which an asset can be converted into the economy's medium of exchange
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commodity money
money that takes the form of a commodity with intrinsic value
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fiat money
money without intrinsic value that is used as money because of government decree
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currency
the paper bills and coins in the hands of the public
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demand deposits
balances in bank accounts that depositors can access on demand by writing a check
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Federal reserve (Fed)
the central bank of the United States
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central bank
an institution designed to oversee the banking system and regulate the quantity of money in the economy
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money supply
the quantity of money available in the economy
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monetary policy
the setting of the money supply by policymakers in the central bank
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reserves
deposits that banks have received but have not loaned out
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fractional-reserve banking
a banking system in which banks hold only a fraction of deposits as reserves
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reserve ratio
the fraction of deposits that banks hold as reserves
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money multiplier
the amount of money the banking system generates with each dollar of reserves
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bank capital
the resources a bank's owners have put into the institution
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leverage
the use of borrowed money to supplement existing funds for purposes of investment
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leverage ratio
the ratio of assets to bank capital
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capital requirement
a government regulation specifying a minimum amount of bank capital
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open market operations
the purchase and sale of U.S. government bonds by the Fed
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discount rate
the interest rate on the loans that the Fed makes to banks
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reserve requirements
regulations on the minimum amounts of reserves that banks must hold against deposits
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federal funds rate
the short-term interest rate that banks charge one another for loans
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quantity theory of money
a theory asserting that the quantity of money available determines the price level and that the growth rate in the quantity of money available determines the infaltion rate
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nominal variables
variables measured in monetary units
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real variables
variables measured in physical units
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classical dichotomy
the theoretical separation of nominal and real variables
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monetary neutrality
the proposition that changes in the money supply do not affect real variables
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velocity of money
 - the rate at which money changes hands
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quantity equation
the queation  , which relates the quantity of money, the velocity of money, and the dollar value of the economy's output of goods and services
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inflation tax
the revenue the government raises by creating money
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the Fisher Effect
 - the one-for-one adjustment of the nominal interest rate to the inflation rate.
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shoeleather costs
teh resources wasted when infaltion encourages people to reduce their money holdings
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menu costs
the costs of changing prices
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closed economy
an economy that does not interact with other economies in the world
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open economy
an economy that interacts freely with other economies around the world
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exports
goods and services that are produced domestically and sold abroad
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imports
goods and services that are produced abroad and sold domestically
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net exports
 - the value of a nation's exports minus the value of its imports, also called the trade balance
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trade balance
the value of a nation's exports minus the value of its imports, also called net exports
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trade surplus
an excess of exports over imports
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trade deficit
an excess of imports over exports
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balanced trade
a situation in which exports equal imports
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net capital outflow (NCO)
the purchase of foreign assets by domestic residents minus the purchase of domestic assets by foreigners
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nominal exchange rate
the rate at which a person can trade the currency of one country for the currency of another
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appreciation
an increase in the value of a currency as measured by the amount of foreign currency it can buy
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depreciation
a decrease in the value of a currency as measured by the amount of foreign currency it can buy
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real exchange rate
the rate at which a person can trade the goods and services of one country for the goods and services of another
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purchasing-power parity
a theory of exchange rates whereby a unit of any given currency should be able to buy the same quantity of goods in all countries
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trade policy
a government policy that directly influences the quantity of goods and services that a country imports or exports
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capital flight
a large and sudden reduction in the demand for assets located in a country
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recession
a period of declining real incomes and rising unemployment
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depression
a severe recession
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model of aggregate demand and aggregate supply
the model that most economists use to explain short-run fluctuations in economic activity around its long-run trend
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aggregate-demand curve
a curve that shows the quantity of goods and services that households, firms, and the government want to buy at each price level
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aggregate-supply curve
a curve that shows the quantity of goods and services that firms choose to produce and sell at each price level
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natural rate of output
the production of goods and services that an economy achieves in the long run when employment is at its natural level
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stagflation
a period of falling output and rising prices
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