Search Council for Economic Education's full glossary for terms and definitions
M
Macroeconomic EquilibriumThe equilibrium level of output and the price level where aggregate demand equals aggregate supply.
Macroeconomic Indicators Macroeconomic PoliciesGovernment actions designed to affect economic activity in an attempt to reach one or more macroeconomic goals, such as reducing unemployment and inflation. Also called economic policies, the most common types are fiscal policy and monetary policy.
MacroeconomicsThe study of economics concerned with the economy as a whole, involving aggregate demand, aggregate supply, and monetary and fiscal policy.
Maintaining Competition Maintaining Regulation Margin requirement Marginal AnalysisA decision-making tool for comparing the additional or marginal benefits of a course of action to the additional or marginal costs.
Marginal BenefitThe additional gain from consuming or producing one more unit of a good or service; can be measured in dollars or satisfaction.
Marginal CostThe increase in a producer's total cost when it increases its output by one unit.
Marginal Physical Product (MPP)The additional quantity that is produced when one additional unit of a resource is used in combination with the same quantities of all other resources.
Marginal Propensity to Consume (MPC)Change in consumption as a proportion of change in disposable income; the ratio of the change in consumption to the change in disposable income that produces the change in consumption.
Marginal Propensity to Save (MPS)Change in saving as a proportion of change in disposable income; the ratio of the change in saving to the change in disposable income that produces the change in saving.
Marginal Resource Product Marginal Revenue (MR)The addition to a producer's total revenue resulting from the addition of one unit to total output.
Marginal Revenue Product (MRP)The change in the total revenue of the firm when it employs one additional unit of a resource.
Marginal tax rate (or ratio) Marginal UtilityThe extra value or satisfaction that a consumer obtains from consuming one additional unit of output.
Market Market EconomyAn economy that relies on a system of interdependent market prices to allocate goods, services, and productive resources and to coordinate the diverse plans of consumers and producers, all of them pursuing their own self-interest.
Market FailuresThe systematic overproduction or underproduction of some goods and services that occurs when producers or consumers do not have to bear the full costs of transactions they undertake. Usually related to externalities or the need for public goods.
Market order Market Price RiskThe chance that the value of an investment will go down because of a change in supply and demand.
Market StructureThe degree of competition in a market, ranging from many buyers and sellers to few or even single buyers or sellers.
MarketsPlaces, institutions or technological arrangements where or by means of which goods or services are exchanged. Also, the set of all sale and purchase transactions that affect the price of some good or service.
Mathematics Maturity Median IncomeThe middle value or midpoint of incomes of people in a specified area where half of the incomes are above the middle value and half of the incomes are below it.
MedicareA federal health-care program that pays for certain medical and hospital costs for people aged 65 and older (and for some people who are under the age of 65 and disabled). Part of Social Security.
Medium-Term GoalSomething a person or organization plans to achieve from one to five years in the future.
MicroeconomicsThe study of economics concerned with individual units of the economy such as households, firms and markets; with how prices and outputs are determined in those markets; and with how the price mechanism allocates resources and distributes income.
Minimum PaymentIn a credit arrangement, the lowest amount that a borrower must pay toward the credit balance each month in order to avoid a penalty.
Monetarist TheoryA school of thought that emphasizes the role changes in the money supply play in determining national income and price level. Monetarists argue that in the long run only changes in the money supply change the price level.
Monetary IncentiveA factor related to money, income or economic wealth that encourages people to do something.
Monetary PolicyChanges in the supply of money and the availability of credit initiated by a nation's central bank to promote price stability, full employment and reasonable rates of economic growth.
MoneyAnything that is generally accepted as final payment for goods and services; serves as a medium of exchange, a store of value and a standard of value. Characteristics of money are portability, stability in value, uniformity, durability and acceptance.
Money ManagementA system for income and spending that allows for the achievement of financial and consumer goals.
Money Market AccountAn interest-bearing account similar to a checking account. Deposits may be added at any time; some money market accounts limit the withdrawals depositors may make without paying a penalty. Also known as money market deposit account.
Money Market Deposit AccountAn interest-bearing account similar to a checking account. Deposits may be added at any time; some money market deposit accounts limit the withdrawals depositors may make without paying a penalty. Also known as money market account.
Money market fund Money Market Mutual Fund (MMMF)A fund restricted by law to investing in the short-term money market. MMMFs provide low risk and low returns, but they maintain their investment value.
Money OrderA certificate purchased for a specific amount of money and signed over by the purchaser to the person or business named on the certificate.
Money SupplyNarrowly defined by economists as currency in the hands of the public plus checking-type deposits; also called M1. Other definitions of the money supply (M2, M3) include various savings deposits, money market deposits and money market mutual fund balances.
Monopolies Monopolistic CompetitionA market structure in which slightly differentiated products are sold by a large number of relatively small producers, and in which the barriers to new firms entering the market are low.
MonopolyA market structure in which there is a single supplier of a good or service. Also, a firm that is the single supplier of a good or service for which there are no close substitutes; also known as a monopolist.
MonopsonyA market situation in which there is only one buyer of a resource. Also, a firm that is the only buyer of a resource; also known as a monopsonist.
MortgageA special type of loan for the purchase of a house or other real estate.
Multinational CorporationA corporation that operates in two or more countries.
Multiplier EffectThe idea that a small increase in spending by consumers, businesses or government can cause large changes in economic production. The multiplier also works in reverse when spending decreases.
Municipal bond Mutual FundA pool of money used by a company to purchase a variety of stocks, bonds or money market instruments. Provides diversification and professional management for investors.