EcoGloss -- A Glossary of Terms Used in Economics

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E

Economic depreciation

The change in the market price of a piece of capital over a given period.

Economic efficiency

A situation that occurs when the cost of producing a given output is as low as possible.

Economic growth

Economic growth is the expansion of production possibilities that results from capital accumulation and technological change. Economic growth allows for the economy's production possibilities frontier (PPF) to expand.

Economic growth rate

The percentage change in the quantity of goods and services produced from one year to the next.

Economic information

Data on prices, quantities, and qualities of goods and services and factors of production.

Economic model

An economic model is a description of some aspect of the economic world that includes only those features of the world that are needed for the purpose at hand.

Economic profit

Economic profit is a firm's total revenue minus its opportunity cost. Note that the opportunity cost of the firm includes normal profit. Therefore, economic profit is a residual to the firm (revenue minus cost) while normal profit is one of the costs payable by the firm.

Economic rent

The income received by the owner of a resource over and above the amount required to induce that owner to offer the resource for use.

Economic shock

An event which impacts the economy, comeas from outside it, or is unexpected and unpredictable (e.g., Hurricane Andrew in 1991, the rise in oil prices by OPEC).

Economic welfare

A comprehensive measure of the general state of economic well-being.

Economics

Economics is the science of choice. Specifically, economics attempts to explain the choices we make and how those choices change as we cope with scarcity. This definition recognizes that, while there are virtually unlimited wants, there are limited resources available to satisfy those wants.

Economies of scale

Features of a firm's technology that lead to falling long-run average cost as output increases.

Economies of scope

Decreases in average total cost that occur when a firm uses specialized resources to produce a range of goods and services.

Efficiency

Obtaining the most possible satisfaction from a given amount of resources. Efficiency for am economy is achieved when it is impossible to increase the satisfaction of wants and needs by producing more of one good and less of another. Contrast with inefficiency.

Efficiency criterion

Addresses the question of whether an alternative arrangement exists that can make at least one person better off without making anyone else worse off.

Efficiency wage

Efficiency wage is the wage rate that maximizes profit. Generally, this is an above-equilibrium wage which is paid by firms in order to increase worker productivity.

Efficient

Resource use is efficient when we produce the goods and services that we value most highly.

Efficient market

A market in which the actual price embodies all currently available relevant information. Resources are sent to their highest-valued use.

Elastic demand

Demand is elastic if the price elasticity is greater than 1; other things remaining the same, the percentage change in the quantity demanded of the good exceeds the percentage change in its price. When demand is elastic, there is an inverse relationship between changes in the price of the good and the total revenue received by the firm.

Elasticity of demand

Elasticity of demand is the responsiveness of the quantity demanded of a good to a change in its price, other things remaining the same. It is equal to the percentage change in quantity demanded divided by the percentage change in price.

Elasticity of supply

Elasticity of supply is the responsiveness of the quantity supplied of a good to a change in its price, other things remaining the same. It is equal to the percentage change in quantity supplied divided by the percentage change in price.

Embargo

A deliberate cutoff of supply, typically intended as a political statement.

Employment Act of 1946

A landmark Congressional act that recognized a role for government actions to reduce unemployment, keep the economy expanding, and keep inflation in check.

Employment-to-population ratio

The employment-to-population ratio is the percentage of people of working age who have jobs.

Entitlement spending

Entitlement spending is spending on government programs that entitle suitably qualified individuals and businesses to receive benefits and that result in transfer payments that depend on the economic state of individual citizens and businesses.

Entrants

Entrants are people who enter the labor force.

Entrepreneurship

Entrepreneurship is the resource that organizes the other three resources (or factors of production) -- land, labor, and capital. Entrepreneurs come up with new ideas about what, how, when, and where to produce, make business decisions, bear the risks and reap the potential rewards which arise from their decisions. While entrepreneurs stand in line to receive all potential profits of the firm, payments to entrepreneurs (the opportunity costs of being an entrepreneur) are known as normal profit and are included as a cost of the firm.

Envelope curve

A curve enclosing, by just touching, a number of other curves.

Equation of exchange

An equation that states that the quantity of money multiplied by the velocity of circulation equals GDP.

Equilibrium

Equilibrium means "at rest" -- a state or outcome for which there is no tendency for the system to deviate. The term equilibrium is used in many ways in economics.

Equilibrium expenditure

Equilibrium expenditure is the level of aggregate expenditure that occurs when aggregate planned expenditure equals real GDP.

Equilibrium price

The equilibrium price is the price at which the quantity demanded equals the quantity supplied.

Equilibrium quantity

The equilibrium quantity is the quantity bought and sold at the equilibrium price. It is both the quantity demanded and the quantity supplied at the equilibrium price.

Equity

Eurodollars

Deposits denominated in U.S. dollars at banks and other financial institutions outside the United States. Although this name originated because of the large amounts of such deposits held at banks in Western Europe, similar deposits in other parts of the world are also called Eurodollars.

Excess capacity

Pant resources that are underutilized when imperfectly competitive firms produce less output than that associated with achieving minimum average total cost.

Excess demand

See shortage.

Excess supply

See surplus.

Excess reserves

Amount of reserves held by an institution in excess of its reserve requirement and required clearing balance. Essentially, excess reserves are the bank's actual reserves minus its required reserves.

Exchange efficiency

Exchange efficiency is the situation in which a good or service is exchanged at a price that equals both the marginal social benefit and the marginal social cost of the good or service. All the gains from trade have been realized.

Exchange rate

The price of a country's currency in terms of another country's currency.

Excise tax

A tax that is specified as a fixed amount for each unit of a good sold. Federal excise taxes on gasoline and cigarettes fall into this per unit tax category. Also known as a "per unit tax". Compare to ad valorem tax.

Exclusion principle

The owner of a private good may exclude others from use unless they pay.

Exhaustible natural resource

Natural resources that can be used only once and that cannot be replaced once they have been used.

Expansion

An expansion is a business cycle phase in which real GDP increases. An expansion follows a trough and precedes a peak. An expansion is the opposite of a recession. An expansion may also be known as a recovery in the cycle.

Expansionary fiscal policy

Expansionary fiscal policy is an increase in government purchases or a decrease in tax revenues.

Expansionary monetary policy

Expansionary monetary policy is a policy decision of the Federal Reserve System which is designed to expand the growth of money and credit in the economy.

Expectations

What people or businesses anticipate will happen, especially in terms of markets and prices. Expectations are a key determinant of demand and of supply and are assumed to be constant when the demand and supply curves are constructed. As a determinant of demand and supply, changes in expectations cause shifts of the demand and supply curves -- a "change in demand" or a "change in supply." Expectations are also important to the study of inflation and the aggregate market as people and firms make decisions and behave according to what they anticipate will happen in the future.

Expected utility

The average utility arising from all possible outcomes.

Explicit cost

The actual outlays or expenses incurred in production; the costs that are actually paid and can be recorded as transactions. Also referred to as accounting cost.

Exports

Exports are the goods and services which are produced domestically and are sold to foreigners.

External benefit

External benefit is the benefit that accrues to people other than the buyers of a good.

External cost

External cost is the cost that is borne by people other than the producer of a good.

External diseconomies

External diseconomies are factors outside the control of a firm that raise the firm's costs as the industry produces a larger output.

External economies

External economies are factors beyond the control of a firm that lower the firm's costs as the industry produces a larger output.

Externality

A cost or a benefit that arises from an economic transaction which falls on people who do not participate in the transaction. This situation occurs because the externality is not included in the supply price or the demand price and is therefore not accounted for in the transaction price. Externality is one type of market failure that causes inefficiency.

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F

Factors of production

The economy's factors of production are land, labor, capital, and entrepreneurship. Factors of production are also called "productive resources" or "resources".

Fallacy of composition

The erroneous view that what is good or true for the individual is necessarily good or true for the group.

Federal budget

The federal budget is a statement of the federal government's financial plan, itemizing programs and their costs, tax revenues, and the proposed deficit or surplus.

Federal Deposit Insurance Corporation (FDIC)

An independent deposit insurance agency created by Congress in 1933 to maintain stability and public confidence in the nation's banking system. The FDIC promotes safety and soundness of insured depository institutions and the U.S. financial system by identifying, monitoring, and addressing risks to the deposit insurance funds; minimizes disruptive effects from the failure of banks and savings associations; and ensures fairness in the sale of financial products and provision of financial services.

Federal funds

Short-term transactions in immediately available funds between depository institutions and certain other institutions that maintain accounts with the Federal Reserve; usually not collateralized.

Federal funds rate (funds rate)

The interest rate at which banks borrow surplus reserves and other immediately available funds. The federal funds rate is the shortest short-term interest rate, with maturities on federal funds concentrated in overnight or one-day transactions.

Federal Home Loan Bank Board (FHLBB)

The agency of the federal government that supervises all federal savings and loan associations and federally insured state-chartered savings and loan associations. The FHLBB also operates the Federal Savings and Loan Insurance Corporation, which insures accounts at federal savings and loan associations and those state-chartered associations that apply and are accepted. In addition, the FHLBB directs the Federal Home Loan Bank System, which provides a flexible credit facility for member savings institutions to promote the availability of home financing. The FHL Banks also own the Federal Home Loan Mortgage Corporation, established in 1970 to promote secondary markets for mortgages.

Federal Open Market Committee (FOMC)

The main policy-making organ of the Federal Reserve System. The FOMC is a twelve-member committee made up of the seven members of the Board of Governors; the president of the Federal Reserve Bank of New York; and, on a rotating basis, the presidents of four other Reserve Banks. The FOMC meets eight times a year to set Federal Reserve guidelines regarding the purchase and sale of government securities in the open market as a means of influencing the volume of bank credit and money in the economy. It also establishes policy relating to System operations in the foreign exchange rates.

Federal Reserve Act of 1913

Federal legislation that established the Federal Reserve System.

Federal Reserve Bank

One of the twelve operating arms of the Federal Reserve System, located throughout the nation, that together with their twenty-five Branches carry out various System functions, including operating a nationwide payments system, distributing the nation's currency and coin, supervising and regulating member banks and bank holding companies, and serving as banker for the U.S. Treasury.

Federal Reserve notes

Nearly all of the nation's circulating paper currency consists of Federal Reserve notes printed by the Bureau of Engraving and Printing and issued to the Federal Reserve Banks to put into circulation through commercial banks and other depository institutions. Federal Reserve notes are obligations of the U.S. government.

Federal Reserve System

The central bank of the United States, created by Congress in 1913 and made up of a seven-member Board of Governors in Washington, DC, twelve regional Federal Reserve Banks, and their twenty-five Branches

Feedback-rule policy

A rule that specifies how policy actions respond to changes in the state of the economy.

Fiat money

Money that has little or no intrinsic value as a commodity; it is costless to produce, usually taking the form of tokens or pieces of paper, and is not redeemable for any commodity.

Financial innovation

Financial innovation is the development of new financial products -- new ways of borrowing and lending.

Financial institution

An institution that uses its funds chiefly to purchase financial assets (loans, securities) as opposed to tangible property. Financial institutions can be classified according to the nature of the principal claims they issue. See also depository institution.

Financial intermediary

A firm that takes deposits from households and firms and makes loans to other households and firms.

Financal market

A market that trades financial assets. Financial assets are the legal claims on the real assets in our economy and include such notable items as corporate stocks and bonds, government securities, and money. Examples of financial markets are stock markets, bond markets, commodity exchanges, the so-called open market (which trade government securities), and markets that trade futures and options. Other less formal transactions are also considered part of our array of financial markets. All of the lending and borrowing that consumers, business, and banks do through the banking system is a part. Insurance, as a legal claim on an uncertain future, is yet another dimension of financial markets. And not to be overlooked, foreign exchange markets are critical financial markets for anyone engaging in the exciting world of foreign trade. Without financial markets our economy would find it almost impossible to accumulate the funds needed for investment in big, expensive capital projects.

Fiscal policy

Fiscal policy is the government's attempt to influence the economy by setting and changing taxes, its purchases of goods and services, and transfer payments to achieve macroeconomic objectives such as full employment, sustained long-term economic growth, and low inflation.

Fisher effect

An increase in expected inflation causes a proportional increase in the market interest rate so that the expected real rate of interest remains unchanged.

Fixed exchange rate system

Exchange rates between currencies that are set at predetermined levels and don't move in response to changes in supply and demand. Contrast with floating exchange rate system.

Fixed-rule policy

A rule that specifies an action to be pursued independently of the state of the economy.

Floating exchange rate system

The flexible exchange rate system in which the exchange rate is determined by the market forces of supply and demand without intervention. Contrast with fixed exchange rate system.

Flow

A quantity per unit of time.

Foreign exchange desk

The foreign exchange trading desk at the New York Federal Reserve Bank. The desk undertakes operations in the exchange markets for the account of the Federal Open Market Committee, and acts as agent for the U.S. Treasury and for foreign central banks.

Foreign exchange market

The foreign exchange market is the market in which the currency of one country is exchanged for the currency of another.

Foreign exchange rate

The foreign exchange rate is the price at which one currency exchanges for another.

Foreign purchase effect

The foreign purchase effect is the inverse relationship between the net exports of an economy and its price level relative to foreign price levels.

Forward exchange

A type of foreign exchange transaction whereby a contract is made to exchange one currency for another at a fixed date in the future at a specified exchange rate. By buying or selling forward exchange, businesses protect themselves against a decrease in the value of a currency they plan to sell at a future date.

Four-firm concentration ratio

A measure of market power that is calculated as the percentage of the value of sales accounted for by the four largest firms in an industry.

Fractional-reserve banking

A banking system in which banks hold only a fraction of deposits as reserves.

Free rider

A person who consumes a good without paying for it.

Frictional unemployment

Frictional unemployment is the unemployment that arises from normal labor turnover -- people entering and leaving the labor force and from ongoing creation and destruction of jobs. Generally, frictional unemployment tends to be shorter-term in nature. Contrast with structural unemployment.

Friedman's law

Inflation follows excessive monetary growth with a long (about two years) and variable lag: or the rate of price change follows the rate of monetary growth.

Fringe benefits

Compensation that a worker receives excluding direct money payments for time worked, such as insurance, retirement benefits, vacation time, maternity and sick leave, etc.

Full employment

Full employment is a situation in which the quantity of labor demanded equals the quantity supplied. At full employment, the unemployment rate equals the natural rate of unemployment and all unemployment is frictional and structural.

Funds rate

See federal funds rate.

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G

Game theory

The main tool that economists use to analyze strategic behavior--behavior that takes into account the expected behavior of others and the mutual recognition of independence.

GDP deflator

The GDP deflator is the price index that measures the average level of the prices of all goods and services that are included in GDP.

General Agreement on Tariffs and Trade (GATT)

The GATT is an international agreement designed to reduce tariffs on international trade.

Giffen good

A good for which an increase in the price raises the quantity demanded. This is a special case where there is a direct relationship between changes in the price of a good and changes in that good's quantity demanded.

Good

A good is a tangible product which may be produced and consumed. When people consume a good, they gain satisfaction, or utility. Compare to service; contrast with bad.

Government budget deficit

A government budget deficit is the deficit that arises when the federal government's expenditure exceeds the taxes collected.

Government budget surplus

The surplus that arises when the federal government collects more in taxes than its expenditure.

Government debt

Government debt is the total amount of borrowing that the government has undertaken. It equals the sum of past budget deficits minus budget surpluses.

Government purchases

Government purchases are goods and services bought by the government.

Government purchases multiplier

The government purchases multiplier is the magnification effect of a change in government purchases of goods and services on equilibrium expenditure and real GDP.

Government sector surplus or deficit

Government sector surplus or deficit is equal to net taxes minus government purchases of goods and services.

Great Depression

The Great Depression is the decade (1929 - 1939) of high unemployment and stagnant production throughout the world economy.

Gross domestic product (GDP)

The value of aggregate production of goods and services in a country during a given time period--usually a year.

Gross investment

The total amount spent on adding to the capital stock and on replacing depreciated capital.

Growth accounting

Growth accounting is a method of calculating how much real GDP growth has resulted from growth of labor and capital and how much is attributable to technological change.

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H

Herfindahl-Hirschman Index

A measure of market power that is calculated as the square of the market share of each firm (as a percentage) summed over the largest 50 firms (or over all firms if there are fewer than 50) in a market.

Heterogeneous products

Products or items which are heterogeneous possess some level of differentiation which is apparent to the end user. This heterogeneity may be in the form of labelling, colors, sizes, or anything else which could lead the consumer to identify a difference. Heterogeneous products are close substitutes for one another; they are not perfect substitutes. Contrast to homogeneous products.

Homogeneous products

Products or items which are homogeneous possess no level of differentiation which is apparent to the end user. This homogeneity means that the products are completely identical and completely devoid of anything which could lead the consumer to identify a difference. Homogeneous products are perfect substitutes for one another. Contrast to heterogeneous products.

Horizontal equity

The idea that taxpayers with similar abilities to pay taxes should pay the same amount. Contrast to vertical equity.

Human capital

Human capital is the skill and knowledge that people obtain from education and on-the-job-training.

Hyperinflation

Rapid, out-of-control inflation, at double digit rates per month and more, usually occurring only during wars and periods of severe political instability.

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