Glossary

Key terms in plain words

444 terms from across the collection, each linked to the readings that use it.

A

Absolute advantage

Being able to produce more of a good with the same resources.

In: Why Do We Trade?

Absolute mobility

Earning more than your parents did, after adjusting for inflation.

In: How Unequal Is America?

Absolute poverty line

A fixed income standard, adjusted only for inflation.

In: How Unequal Is America?

Accounting profit

Revenue minus the bills a business actually pays.

In: Why Do Profits and Losses Matter?

Accreditation

Approval of a college by a recognized reviewer; required for federal aid.

In: Why Does College Cost So Much?

Aggregate demand (AD)

Total spending on a country’s goods and services by households, businesses, government, and buyers abroad.

In: What Causes Booms and Busts?

Algorithmic pricing

Software that recommends prices, sometimes from rivals’ data.

In: Why Is Housing So Expensive?

Ample reserves

A level of reserves large enough that small changes in supply don’t move the federal funds rate.

In: What Does the Fed Do?

Annual rate

The pace growth would reach if one quarter’s growth continued for a year.

In: How Do We Measure the Economy?

Asymmetric information

When one side of a deal knows much more than the other.

In: Why Is Health Care So Expensive?

Automatic stabilizer

Spending or taxes that rise or fall with the economy without new laws, such as UI.

In: What Does the Unemployment Rate Tell Us?

Automatic stabilizers

Taxes and benefits that change on their own as the economy rises and falls, with no new law.

In: Should Government Fight Recessions?, How Does the Government Tax, Spend, and Borrow?

Automation

Using machines or software to do tasks people used to do.

In: Will Technology Take Our Jobs?

Average fixed cost

Fixed cost divided by the quantity of output.

In: What Does It Really Cost to Make Something?

Average tax rate

Total tax paid divided by total income.

In: How Does the Government Tax, Spend, and Borrow?

Average total cost

Total cost divided by the quantity of output; cost per unit.

In: What Does It Really Cost to Make Something?

Average variable cost

Variable cost divided by the quantity of output.

In: What Does It Really Cost to Make Something?

B

Balance of payments

The full set of accounts that records all transactions with the rest of the world.

In: Is the Trade Deficit a Problem?

Balance sheet

A list of what a firm owns (assets) and owes (liabilities), with capital as the difference.

In: Where Does Money Come From?

Balanced budget rule

A law or constitutional provision requiring spending not to exceed revenue.

In: How Does the Government Tax, Spend, and Borrow?

Bank capital

The owners’ stake in a bank, which absorbs losses before depositors.

In: Where Does Money Come From?

Bank run

When many depositors withdraw at once because they fear the bank will fail.

In: Where Does Money Come From?

Barrier to entry

Anything that makes it hard for new rivals to enter a market.

In: Who Really Runs the Economy?

Barter

Trading goods or services directly, without money.

In: Where Does Money Come From?

Base acres

A farm’s historical acres, on which payments are figured, whatever it plants now.

In: Who Benefits from Farm Price Supports?

Baumol’s cost disease

Costs rising in services that are hard to make more productive.

In: Why Does College Cost So Much?

Behavioral economics

The study of how real people’s choices depart from the standard economic model.

In: Why Isn’t Good Good Enough?

Bennett hypothesis

The idea that more federal aid lets colleges raise tuition.

In: Why Does College Cost So Much?

Beveridge curve

The relationship between job openings and unemployment.

In: What Does the Unemployment Rate Tell Us?

Bilateral deficit

A trade deficit with one particular country.

In: Is the Trade Deficit a Problem?

Binding

Set below the price the market would reach, so that it changes what happens.

In: Does Rent Control Make Housing Affordable?, Does the Minimum Wage Help Low-Wage Workers?

Bite

How high a minimum wage is compared with typical local pay, often measured against the median wage.

In: Does the Minimum Wage Help Low-Wage Workers?

Bond

A loan to a firm or government that pays interest on a schedule.

In: What Sets the Price of Borrowing?

Bounty

Hamilton’s term for a direct payment to producers, a kind of subsidy.

In: Who Pays for Tariffs?

Bourgeois Deal

McCloskey’s bargain: let people innovate, don’t resent their rewards, and everyone gets richer.

In: Why Do Profits and Losses Matter?, The Moral Case for Markets, How Did the World Get Rich?

Breakeven job growth

New jobs needed each month to keep the unemployment rate steady.

In: What Does the Unemployment Rate Tell Us?, What Does Labor Force Participation Tell Us?

By right

Allowed without a special vote or approval if it meets the rules.

In: Why Is Housing So Expensive?

C

Capabilities

Sen’s term for what people are really free to do and be.

In: What Makes an Economy Just?

Capital inflow

Money from abroad invested in U.S. assets.

In: Is the Trade Deficit a Problem?

Capitalization

When expected future payments get built into today’s price of an asset, such as land.

In: Who Benefits from Farm Price Supports?, Why Is Housing So Expensive?

Cartel

A group of sellers that coordinates output to raise prices, such as OPEC+.

In: Why Are Gas Prices So High?

Catch-up growth

Fast growth from adopting machines and methods already used elsewhere.

In: What Makes Economies Grow?

Central bank

A government bank that issues the currency, holds banks’ reserves, and sets short-term interest rates.

In: What Does the Fed Do?

Central bank independence

Legal protections that let a central bank set policy without direction from elected officials.

In: What Does the Fed Do?

Central planning

A system where the state owns most firms and a central authority decides what to produce.

In: Markets, Planning, or Something in Between?

Certificate of need

State approval required to open or expand a health facility.

In: Why Is Health Care So Expensive?

Change in demand

A shift of the whole demand curve caused by something other than the good’s price.

In: Where Do Prices Come From?

Change in quantity demanded

A move along the demand curve caused by the good’s own price.

In: Where Do Prices Come From?

China shock

The rapid rise of imports from China in the 1990s and 2000s and its effect on U.S. local job markets.

In: Why Do We Trade?, Should We Bring Manufacturing Home?

Collective bargaining

Negotiation between a union and an employer on behalf of all the workers.

In: Why Do Some Jobs Pay More Than Others?

Command economy

An economy where rulers or planners decide what, how, and for whom.

In: Who Should Decide?

Commodity money

Money with value of its own, such as gold or shells.

In: Where Does Money Come From?

Common-pool resource

A shared resource, like a fishery, that is hard to fence off and gets used up.

In: Who Should Decide?, Who Owns It, and Why Does It Matter?

Comparative advantage

Being able to produce a good at a lower opportunity cost than others.

In: Why Do We Trade?, Should We Bring Manufacturing Home?

Compensating differential

Extra pay that makes up for a job’s danger, discomfort, or bad hours.

In: How Do People Respond to Prices?

Complement

A technology that makes a worker more productive instead of replacing the worker.

In: Will Technology Take Our Jobs?

Complements

Goods used together, such as coffee and sugar.

In: When Does a Higher Price Pay Off?, Where Do Prices Come From?

Complements in production

Inputs that make each other more productive, such as machines and trained workers.

In: What Makes Economies Grow?

Composition effect

A change in an average caused by a change in who is in the group.

In: What Does Labor Force Participation Tell Us?

Compound interest

Interest earned on both the original amount and past interest.

In: What Sets the Price of Borrowing?

Compounding

Earnings that generate more earnings, so growth builds on itself.

In: What Makes Economies Grow?

Concentrated benefits

Gains that go to a small group with strong reasons to lobby.

In: Who Pays for Tariffs?

Conditional convergence

Catching up with countries that have similar institutions, schooling, and saving.

In: What Makes Economies Grow?

Constant returns to scale

Average cost that stays the same as the whole operation grows.

In: What Does It Really Cost to Make Something?

Consumer Price Index (CPI)

BLS measure of the cost of a fixed basket of consumer purchases.

In: What Does the Inflation Rate Tell Us?

Consumer surplus

The gap between the most a buyer would pay and the price the buyer pays.

In: What Is a Good Deal Worth?

Convergence

Poorer countries growing faster than richer ones, closing the gap.

In: What Makes Economies Grow?

Core inflation

Inflation excluding food and energy prices.

In: What Does the Inflation Rate Tell Us?

Cost-burdened

Spending 30% or more of income on housing.

In: Why Is Housing So Expensive?

Cost-shifting

Moving a cost from one payer, like a state, to another, like students.

In: Why Does College Cost So Much?

Creative destruction

New products and methods replacing old ones, creating some jobs and ending others.

In: Will Technology Take Our Jobs?, Who Really Runs the Economy?, Why Do Profits and Losses Matter?, How Did the World Get Rich?

Credit rationing

When lenders turn borrowers away instead of raising the rate.

In: What Sets the Price of Borrowing?

Cross-price elasticity

How much demand for one good changes when the price of another changes.

In: When Does a Higher Price Pay Off?

Crowding out

A fall in private spending or investment caused by government borrowing or spending.

In: How Does the Government Tax, Spend, and Borrow?, Is the National Debt a Problem?

Current account

Trade in goods and services plus income such as interest and dividends.

In: Is the Trade Deficit a Problem?

Cyclical unemployment

Unemployment caused by a recession.

In: What Does the Unemployment Rate Tell Us?

D

Das Adam Smith Problem

The claim that Smith’s two books contradict each other, now widely rejected.

In: Beyond the Invisible Hand: Who Was Adam Smith?

Dead capital

De Soto’s term for assets that can’t be sold or borrowed against because the law doesn’t record them.

In: Who Owns It, and Why Does It Matter?

Deadweight loss

Value lost when trades that would have helped both sides don’t happen.

In: What Is a Good Deal Worth?, Who Pays for Tariffs?

Debt held by the public

Total past federal borrowing owed to investors outside the federal government.

In: How Does the Government Tax, Spend, and Borrow?, Is the National Debt a Problem?

Debt-to-GDP ratio

The debt compared with the size of the economy, as a percent.

In: Is the National Debt a Problem?

Deficit

The amount by which spending exceeds revenue in one year.

In: How Does the Government Tax, Spend, and Borrow?, Is the National Debt a Problem?

Deflation

A general fall in prices; a negative inflation rate.

In: What Does the Inflation Rate Tell Us?, Why Are Groceries So Expensive?

Delegation

When Congress hands part of its power to the President by law, within limits.

In: Who Pays for Tariffs?

Demand

How much buyers are willing and able to buy at each price.

In: Where Do Prices Come From?

Demand shock

An event that shifts AD, moving output and prices in the same direction.

In: What Causes Booms and Busts?

Democratic equality

Anderson’s view that justice means people relate as equals, free of oppression.

In: What Makes an Economy Just?

Depletion

When a trust fund runs out, so the program can pay only what comes in.

In: Is the National Debt a Problem?

Deposit insurance

A guarantee that depositors will be repaid up to a limit if a bank fails.

In: Where Does Money Come From?

Derived demand

Demand for workers that comes from demand for what they produce.

In: Why Do Some Jobs Pay More Than Others?

Difference principle

Rawls’s rule that inequalities are just only if they most benefit the least advantaged.

In: What Makes an Economy Just?

Diminishing marginal utility

Each additional unit of something adds less satisfaction than the one before.

In: Why Isn’t Good Good Enough?

Diminishing returns

Each added unit of an input adds less output than the one before, when other inputs are fixed.

In: What Does It Really Cost to Make Something?, What Makes Economies Grow?

Discouraged worker

Wants a job but stopped looking because they believe none is available.

In: What Does the Unemployment Rate Tell Us?, What Does Labor Force Participation Tell Us?

Discovery procedure

Hayek’s description of competition as a way to find out facts no one knew.

In: Markets, Planning, or Something in Between?

Discretionary fiscal policy

Changes in taxes or spending that require new decisions by Congress.

In: Should Government Fight Recessions?

Discretionary spending

Spending Congress sets each year in appropriations bills.

In: How Does the Government Tax, Spend, and Borrow?

Diseconomies of scale

Rising average cost as the whole operation grows, often because large organizations are harder to manage.

In: What Does It Really Cost to Make Something?

Disinflation

A fall in the inflation rate while prices keep rising.

In: What Does the Inflation Rate Tell Us?, Why Are Groceries So Expensive?

Dispersed knowledge

Hayek’s point that the facts needed to plan an economy are spread among millions of people.

In: Why Do We Trade?

Displacement effect

Machines taking over tasks, which lowers the demand for labor in those tasks.

In: Will Technology Take Our Jobs?

Distributive justice

Fairness of the outcome: who ends up with what.

In: What Makes an Economy Just?

Diversification

Spreading money across many investments to lower risk.

In: What Sets the Price of Borrowing?

Division of labor

Splitting the making of a good into separate tasks done by different workers.

In: Why Do We Trade?

Double coincidence of wants

When each trader has what the other wants, which barter requires.

In: Where Does Money Come From?

Dual mandate

The goals Congress gave the Fed: maximum employment and stable prices.

In: What Does the Fed Do?

E

Earned Income Tax Credit

A tax credit that adds to the earnings of low-income working families.

In: Does the Minimum Wage Help Low-Wage Workers?

Easterlin paradox

The finding that average happiness may not rise over time as countries grow richer.

In: How Did the World Get Rich?

Economic calculation

Comparing the costs and benefits of different uses of resources, which requires prices.

In: Markets, Planning, or Something in Between?

Economic freedom index

A score of how much an economy relies on markets, property rights, and open trade.

In: Markets, Planning, or Something in Between?

Economic growth

A lasting rise in real output per person.

In: What Makes Economies Grow?

Economic loss

Revenue that falls short of all costs, a sign resources would do more elsewhere.

In: Why Do Profits and Losses Matter?

Economic profit

Revenue minus all costs, including the owner’s opportunity cost.

In: Why Do Profits and Losses Matter?

Economies of scale

Falling average cost as the whole operation grows.

In: What Does It Really Cost to Make Something?

Effective marginal tax rate

The share of an extra dollar earned lost to taxes and reduced benefits.

In: Is the National Debt a Problem?

Effective tariff rate

Total tariffs collected as a share of the value of imports.

In: Who Pays for Tariffs?

Efficiency

Making every trade that creates more value than it costs, and no trade that costs more than it is worth.

In: What Is a Good Deal Worth?

Elastic

Quantity changes by a larger percentage than price.

In: When Does a Higher Price Pay Off?

Eminent domain

Government’s power to take private property for public use, with just compensation.

In: Who Owns It, and Why Does It Matter?

Employment-population ratio

The share of the population 16 and older that is working.

In: What Does Labor Force Participation Tell Us?

Entitlement theory

Nozick’s view that holdings are just if fairly acquired, voluntarily transferred, or corrected.

In: What Makes an Economy Just?

Entrepreneur

Someone who makes judgment calls about what to produce and how, and bears the result.

In: Why Do Profits and Losses Matter?

Entrepreneurial alertness

Kirzner’s term for noticing opportunities others have missed.

In: Where Do Prices Come From?

Entry and exit

Firms moving into profitable industries and out of losing ones.

In: Why Do Profits and Losses Matter?

Equilibrium

The point where AD and SRAS cross, which sets real GDP and the price level.

In: What Causes Booms and Busts?, Where Do Prices Come From?

Excess burden

Another name for the deadweight loss of a tax: the cost beyond the revenue collected.

In: What Is a Good Deal Worth?

Exchange rate

The price of one currency in terms of another.

In: How Do We Measure the Economy?

Expenditure multiplier

The idea that a change in spending changes GDP by more than the original amount, because one person’s spending is another’s income.

In: Should Government Fight Recessions?

Exposure

How many of a job’s tasks a technology could do or speed up. It is not a forecast of job loss.

In: Will Technology Take Our Jobs?

Extent of the market

How many buyers a producer can reach; it limits how far specialization can go.

In: Why Do We Trade?

Externality

A cost or benefit that falls on people outside a deal.

In: Who Should Decide?, Who Owns It, and Why Does It Matter?

Extractive institutions

Rules that let a small elite take wealth from everyone else.

In: How Did the World Get Rich?

F

Farm share

The part of each food dollar that goes to farms; about 18.5 cents for groceries.

In: Why Are Groceries So Expensive?

Federal funds rate

The interest rate banks charge one another for overnight loans of reserves.

In: What Does the Fed Do?

Federal Open Market Committee (FOMC)

The 12-member Fed committee that sets interest rates.

In: What Does the Fed Do?

Fiat money

Money with no backing, accepted because the government declares it legal tender and people trust it.

In: Where Does Money Come From?

Filtering

Older homes becoming cheaper as newer ones are built.

In: Why Is Housing So Expensive?

Final good

A good or service sold to its last user, not used to make something else.

In: How Do We Measure the Economy?

Financial account

Purchases of assets, such as stocks, bonds, and factories, across borders.

In: Is the Trade Deficit a Problem?

Financial intermediary

A firm, such as a bank, that moves funds from savers to borrowers.

In: Where Does Money Come From?

Financial market

A market where savers supply money and borrowers demand it.

In: What Sets the Price of Borrowing?

Finders-keepers

Kirzner’s rule that what someone discovers and claims first is justly theirs.

In: What Makes an Economy Just?

Fiscal policy

The government’s decisions about taxes, spending, and borrowing.

In: How Does the Government Tax, Spend, and Borrow?

Fiscal rule

A law that limits deficits, debt, or spending, such as a cap or pay-as-you-go rule.

In: Is the National Debt a Problem?

Fixed cost

A cost that doesn’t change with output in the short run.

In: What Does It Really Cost to Make Something?

Fixed input

An input that can’t be changed in the short run, such as a building or an oven.

In: What Does It Really Cost to Make Something?

Forward guidance

Fed statements about the likely future path of interest rates.

In: What Does the Fed Do?

Free rider

Someone who enjoys a good without helping pay for it.

In: Who Should Decide?

Frictional unemployment

Time spent between jobs or searching for a first job.

In: What Does the Unemployment Rate Tell Us?

Friend-shoring

Shifting supply to allied or friendly countries.

In: Should We Bring Manufacturing Home?

Full price

Everything you give up to get something: money, time, and risk.

In: How Do People Respond to Prices?

Fungible

Interchangeable. A barrel of oil is worth the same wherever it was pumped.

In: Why Are Gas Prices So High?

G

Gains from trade

The value a trade creates for both sides together.

In: What Is a Good Deal Worth?, Why Do We Trade?

GDP per person

GDP divided by population. Also called GDP per capita.

In: How Do We Measure the Economy?

Generic drug

A copy of a brand-name drug sold after its patent ends.

In: Why Is Health Care So Expensive?

Gini index

A 0-to-1 summary of inequality. 0 means equal incomes; 1 means one household has it all.

In: How Unequal Is America?

Good Is Good Enough fallacy

Otteson’s name for doing something because it does good, without asking what else could do more.

In: Why Isn’t Good Good Enough?

Government-granted monopoly

A monopoly created by a patent, copyright, or license.

In: Who Really Runs the Economy?

Great Enrichment

McCloskey’s name for the sustained rise in living standards since about 1800.

In: How Did the World Get Rich?

Gross debt

Debt held by the public plus what the government owes its own trust funds.

In: Is the National Debt a Problem?

Gross domestic product (GDP)

The market value of all final goods and services produced in a country in a period.

In: How Do We Measure the Economy?

H

Household production

Unpaid work at home, such as cooking and child care, that GDP leaves out.

In: How Do We Measure the Economy?

Housing shortage

Fewer homes than the number of households who want them.

In: Why Is Housing So Expensive?

Human capital

The skills, knowledge, and health that make a worker productive.

In: Why Do Some Jobs Pay More Than Others?, What Makes Economies Grow?

Hyperinflation

Extremely rapid inflation, often 50 percent or more a month.

In: What Does the Inflation Rate Tell Us?

I

Impartial spectator

An imagined fair, well-informed observer we use to judge our own conduct; “the man within.”

In: Beyond the Invisible Hand: Who Was Adam Smith?

Implicit cost

The value of what an owner gives up without paying a bill, such as her own time or the return her savings could earn elsewhere.

In: What Does It Really Cost to Make Something?

Import quota

A limit on how much of a good may come into the country.

In: Who Benefits from Farm Price Supports?

Imputation

Filling in a missing price with an estimate from similar items.

In: What Does the Inflation Rate Tell Us?

Incidence

Who actually bears the cost of a policy, whoever is required to pay.

In: Does Rent Control Make Housing Affordable?, Who Benefits from Farm Price Supports?

Inclusive institutions

Rules that let most people take part and share in the gains.

In: How Did the World Get Rich?

Income elasticity

How much demand changes when buyers’ income changes.

In: When Does a Higher Price Pay Off?

Income mobility

Movement up or down the income ladder over a lifetime or across generations.

In: How Unequal Is America?

Index fund

A fund that owns a slice of the whole market instead of picking stocks.

In: What Sets the Price of Borrowing?

Indexing

Raising a minimum wage automatically each year with inflation.

In: Does the Minimum Wage Help Low-Wage Workers?

Industrial policy

Government support aimed at growing particular industries.

In: Should We Bring Manufacturing Home?

Inelastic

Quantity changes by a smaller percentage than price.

In: When Does a Higher Price Pay Off?

Inelastic demand

When quantity bought changes little as price changes, as with gasoline in the short run.

In: Why Are Gas Prices So High?, Why Are Groceries So Expensive?

Infant industry

A young industry that some argue needs protection until it can compete.

In: Who Pays for Tariffs?

Infant industry argument

The case for temporary protection while a new domestic industry grows.

In: Why Do We Trade?

Inflation expectations

What households and businesses expect inflation to be.

In: What Does the Inflation Rate Tell Us?

Inflation rate

How fast the price level is rising, usually over 12 months.

In: What Does the Inflation Rate Tell Us?

Inflationary gap

When real GDP is above potential, putting upward pressure on wages and prices.

In: What Causes Booms and Busts?

Institutions

The rules, formal and informal, that shape what people can do and keep.

In: What Makes Economies Grow?, How Did the World Get Rich?

Interest on reserve balances (IORB)

The rate the Fed pays banks on their reserves; its main tool for setting rates.

In: What Does the Fed Do?

Interest rate

The price of borrowing money, as a percent of the amount borrowed per year.

In: What Sets the Price of Borrowing?

Intermediate good

A good used up in making another good, such as steel in a car.

In: How Do We Measure the Economy?

Intermediate inputs

Parts and materials used to make other goods.

In: Should We Bring Manufacturing Home?

Inventories

Goods produced but not yet sold. Adding to them counts as investment.

In: How Do We Measure the Economy?

Invisible hand

Smith’s phrase for good outcomes no one intended; see The Moral Case for Markets.

In: Beyond the Invisible Hand: Who Was Adam Smith?, The Moral Case for Markets

J

Justice and beneficence

Not harming others, which can be enforced, and doing good for them, which can’t.

In: Beyond the Invisible Hand: Who Was Adam Smith?

K

Keynesian economics

The view that spending drives short-run swings and that sticky wages and prices can keep the economy below potential for years.

In: Should Government Fight Recessions?

Knowledge problem

Hayek’s point that the knowledge an economy needs is scattered across millions of people.

In: Markets, Planning, or Something in Between?

L

Labor demand

How many workers employers want to hire at a given wage.

In: What Does Labor Force Participation Tell Us?

Labor force

Everyone 16 and older who is employed or unemployed.

In: What Does the Unemployment Rate Tell Us?, What Does Labor Force Participation Tell Us?

Labor productivity

Output per hour of work.

In: What Makes Economies Grow?

Labor supply

How many people want to work at a given wage.

In: What Does Labor Force Participation Tell Us?

Labor union

An organization of workers that bargains with employers over pay and conditions.

In: Why Do Some Jobs Pay More Than Others?

Labor-market discrimination

Paying or hiring workers differently for reasons unrelated to their work.

In: Why Do Some Jobs Pay More Than Others?

Law of demand

When a good’s price rises, people buy less of it, other things equal.

In: Where Do Prices Come From?

Leaky bucket

Okun’s image for the output lost when income is moved from rich to poor.

In: What Makes an Economy Just?

Learning curve (Wright’s law)

The pattern in which cost per unit falls by a steady share each time total output ever produced doubles.

In: What Does It Really Cost to Make Something?

Lender of last resort

A central bank’s role of lending to sound banks short of cash in a panic.

In: What Does the Fed Do?

Liquidity

How easily an asset can be turned into cash to spend.

In: What Sets the Price of Borrowing?, Where Does Money Come From?

Lobbying

Spending to influence what lawmakers and regulators decide.

In: Who Really Runs the Economy?

Lock-in

When a benefit that lasts only while you stay makes moving costly.

In: Does Rent Control Make Housing Affordable?

Lock-in effect

Owners staying put to keep a low mortgage rate.

In: Why Is Housing So Expensive?

Lockean proviso

Locke’s condition that taking from nature is fair if “enough, and as good” is left for others.

In: Who Owns It, and Why Does It Matter?

Long run

The period after people have had time to change cars, homes, jobs, or suppliers.

In: How Do People Respond to Prices?, What Does It Really Cost to Make Something?

Long-run aggregate supply (LRAS)

A vertical line at potential GDP, showing output once wages and prices have fully adjusted.

In: Should Government Fight Recessions?

Long-run average cost curve

The lowest cost per unit for each quantity when every input, including the size of the operation, can change.

In: What Does It Really Cost to Make Something?

M

M1 and M2

Measures of money: M1 is currency, checking, and savings deposits; M2 adds small CDs and retail money funds.

In: Where Does Money Come From?

Malinvestment

In the Austrian view, investment in projects that look profitable only because interest rates sent a false signal.

In: Should Government Fight Recessions?

Malthusian trap

A pattern in which gains in output are absorbed by population growth, keeping incomes near subsistence.

In: How Did the World Get Rich?

Man of system

Smith’s term for a planner who thinks he can arrange society like pieces on a chessboard.

In: Beyond the Invisible Hand: Who Was Adam Smith?

Mandatory spending

Spending set by existing law that flows automatically to those who qualify.

In: How Does the Government Tax, Spend, and Borrow?

Margin

Any part of a deal that can be adjusted, such as upkeep, quality, or who gets the apartment.

In: Does Rent Control Make Housing Affordable?, Who Benefits from Farm Price Supports?

Marginal analysis

Weighing the extra benefit against the extra cost of a little more or a little less.

In: Why Isn’t Good Good Enough?

Marginal cost

The extra cost of producing one more unit.

In: What Does It Really Cost to Make Something?

Marginal product

The extra output from adding one more worker.

In: Why Do Some Jobs Pay More Than Others?, What Does It Really Cost to Make Something?

Marginal tax rate

The tax on the next dollar of income.

In: How Does the Government Tax, Spend, and Borrow?

Market concentration

How much of a market’s sales go to its largest few firms.

In: Who Really Runs the Economy?

Market design

Building the rules of an exchange, such as Roth’s kidney swaps, to work well.

In: Who Should Decide?

Market economy

An economy where most firms are private and market prices guide production.

In: Markets, Planning, or Something in Between?, Who Should Decide?

Market for ideas

Competition among thinkers that tests ideas and spreads the best ones.

In: How Did the World Get Rich?

Market income

Income earned in the market: wages, business income, interest, dividends, and capital gains.

In: How Unequal Is America?

Market power

The ability to raise prices (or hold down wages) without losing customers (or workers).

In: Who Really Runs the Economy?, Why Are Gas Prices So High?, Why Are Groceries So Expensive?

Market socialism

Worker or public ownership of firms that buy and sell in markets.

In: Markets, Planning, or Something in Between?

Marketing order

A federal rule, approved by growers, that sets quality standards and sometimes limits how much of a crop can be sold.

In: Why Are Groceries So Expensive?

Markup

How far a price sits above the cost of producing one more unit.

In: Who Really Runs the Economy?

Medium of exchange

Something widely accepted as payment.

In: Where Does Money Come From?

Mercantilism

The old idea that a nation grows rich by selling more than it buys.

In: Is the Trade Deficit a Problem?

Minimum efficient scale

The smallest output at which long-run average cost reaches its lowest level.

In: What Does It Really Cost to Make Something?

Minimum lot size

The smallest piece of land a home may sit on.

In: Why Is Housing So Expensive?

Minimum wage

The lowest hourly pay an employer may legally offer.

In: Does the Minimum Wage Help Low-Wage Workers?

Misallocation

Goods ending up with people who value them less than others who can’t get them.

In: Does Rent Control Make Housing Affordable?

Mobility

How easily people move to a new home or a new job.

In: Does Rent Control Make Housing Affordable?

Monetary base

Currency plus the reserves banks hold at the Federal Reserve.

In: Where Does Money Come From?

Monetary policy

Actions by a central bank to influence interest rates, inflation, and employment.

In: What Does the Fed Do?

Money income

The Census Bureau’s main measure: pre-tax cash income, before most government benefits.

In: How Unequal Is America?

Monopsony

A market with one main employer, which can hold wages below what workers add.

In: Why Do Some Jobs Pay More Than Others?, Does the Minimum Wage Help Low-Wage Workers?

Moral hazard

Taking more risk because someone else will bear part of the loss.

In: Where Does Money Come From?, What Does the Fed Do?, Why Is Health Care So Expensive?

Mortgage interest deduction

A tax break for interest paid on a home loan.

In: Why Is Housing So Expensive?

N

National saving

Saving by households and businesses plus government saving.

In: Is the Trade Deficit a Problem?

Natural experiment

A real-world event that splits people into groups almost as if at random, letting researchers compare them.

In: How Do People Respond to Prices?, Markets, Planning, or Something in Between?

Natural rate of unemployment

The rate when the economy is neither booming nor in recession.

In: What Does the Unemployment Rate Tell Us?

Neoclassical economics

The view that wages and prices adjust over time, returning the economy to potential GDP.

In: Should Government Fight Recessions?

Net interest

What the government pays in interest, minus the interest it earns.

In: Is the National Debt a Problem?

Net interest margin

What a bank earns on loans and securities minus what it pays on deposits, as a share of its assets.

In: Where Does Money Come From?

Net international investment position

What Americans own abroad minus what foreigners own here.

In: Is the Trade Deficit a Problem?

Net price

What a student actually pays after grants and scholarships.

In: Why Does College Cost So Much?

Net worth

What a household owns minus what it owes.

In: Who Really Runs the Economy?

Neutral rate

The real interest rate that would neither speed up nor slow down the economy; it must be estimated.

In: What Does the Fed Do?

New entrant

A worker taking a first job, or returning after years away.

In: Does the Minimum Wage Help Low-Wage Workers?

Nominal GDP

GDP at current prices. BEA calls it current-dollar GDP.

In: How Do We Measure the Economy?

Nominal value

A value measured in dollars of the day.

In: What Does the Inflation Rate Tell Us?

Non-price rationing

Deciding who gets a scarce good by waiting, rules, quality, or connections instead of price.

In: How Do People Respond to Prices?

Normal profit

Zero economic profit: owners earn just enough to stay in business.

In: Why Do Profits and Losses Matter?

Normative claim

A statement about what should be. Moral arguments about markets are normative.

In: The Moral Case for Markets

Not in the labor force

Neither working nor looking: students, retirees, caregivers, and others.

In: What Does the Unemployment Rate Tell Us?, What Does Labor Force Participation Tell Us?

Nudge

A change in how choices are presented that steers people without removing options.

In: Why Isn’t Good Good Enough?

O

Occupational license

Government permission required to work in a job.

In: Why Do Some Jobs Pay More Than Others?

Offsetting behavior

Taking more risk when something makes you feel safer.

In: How Do People Respond to Prices?

Oligopoly

A market dominated by a few large sellers.

In: Who Really Runs the Economy?

Open access

A resource anyone can use and no one controls, such as fish in the open ocean.

In: Who Owns It, and Why Does It Matter?

Open market operations

Fed purchases and sales of government bonds, which add or drain reserves.

In: What Does the Fed Do?

Opportunity cost

The value of the next best alternative you give up when you choose.

In: Why Isn’t Good Good Enough?

Out-of-pocket cost

What a patient pays directly for care.

In: Why Is Health Care So Expensive?

Output gap

The difference between real GDP and potential GDP, as a percent of potential.

In: What Causes Booms and Busts?

P

Paradox of thrift

If everyone tries to save more at once, spending and incomes fall, and total saving may not rise.

In: Should Government Fight Recessions?

Parity

The 1930s goal of restoring the buying power farm products had in 1909 to 1914.

In: Who Benefits from Farm Price Supports?

Part time for economic reasons

Working part time but wants and is available for full-time work.

In: What Does the Unemployment Rate Tell Us?

Participation rate

The labor force as a share of the population 16 and older.

In: What Does Labor Force Participation Tell Us?

Pass-through

How much of a tariff shows up in the prices buyers pay.

In: Who Pays for Tariffs?, Does the Minimum Wage Help Low-Wage Workers?

Patent

A time-limited exclusive right to make and sell an invention.

In: Who Owns It, and Why Does It Matter?, Why Is Health Care So Expensive?

Payment limit

A cap on how much one person or business can collect from a program in a year.

In: Who Benefits from Farm Price Supports?

Payroll tax

A tax on wages that pays for Social Security and Medicare.

In: How Does the Government Tax, Spend, and Borrow?

PCE price index

BEA measure covering all consumer spending; the Fed’s target gauge.

In: What Does the Inflation Rate Tell Us?

Pell Grant

Federal aid for low-income students that doesn’t have to be repaid.

In: Why Does College Cost So Much?

Per-gallon tax

A fixed tax per unit, such as the 18.4-cent federal gas tax. It does not rise when prices rise.

In: Why Are Gas Prices So High?

Pharmacy benefit manager

A middleman that manages drug benefits for insurers.

In: Why Is Health Care So Expensive?

Phillips curve

The short-run tendency of inflation to rise as unemployment falls.

In: What Does the Inflation Rate Tell Us?

Physical capital

Machines, tools, buildings, and software used to produce.

In: What Makes Economies Grow?

Pigovian tax

A tax that makes a producer pay for the harm it does to others.

In: Who Should Decide?

Polanyi’s paradox

“We know more than we can tell”: skills we can’t explain are hard to program.

In: Will Technology Take Our Jobs?

Policy lags

The delay between a problem appearing and a policy taking effect.

In: Should Government Fight Recessions?

Political power

The ability to shape the rules that everyone else must follow.

In: Who Really Runs the Economy?

Polycentric

Ostrom’s term for a system with many centers of decision-making.

In: Who Should Decide?

Population controls

Yearly updates that match survey totals to new Census population estimates.

In: What Does Labor Force Participation Tell Us?

Positional good

Something whose value depends on having more than others, like a home in a top school district.

In: How Unequal Is America?

Positive vs. normative

Questions about what is, which evidence can test, versus what ought to be.

In: Why Isn’t Good Good Enough?

Positive-sum

An exchange or activity in which all sides can gain together.

In: Why Do We Trade?, The Moral Case for Markets

Potential GDP

The real GDP an economy can sustain when it fully uses its workers, capital, and technology.

In: What Causes Booms and Busts?

Preemption

A state law that stops local governments from making their own rules on a topic.

In: Does Rent Control Make Housing Affordable?, Does the Minimum Wage Help Low-Wage Workers?

Preston curve

The link between national income and life expectancy, which has shifted up over time.

In: How Did the World Get Rich?

Price ceiling

A legal maximum price, such as rent control or a cap on gas prices.

In: How Do People Respond to Prices?, Does Rent Control Make Housing Affordable?, Why Are Gas Prices So High?, Why Are Groceries So Expensive?

Price elasticity of demand

How much buyers change what they buy when the price changes.

In: How Do People Respond to Prices?, When Does a Higher Price Pay Off?

Price elasticity of supply

How much the quantity sellers offer changes when the price changes.

In: When Does a Higher Price Pay Off?, Why Is Housing So Expensive?

Price level

An average of the prices of all goods and services. Inflation is the rate at which it rises.

In: What Causes Booms and Busts?, What Does the Inflation Rate Tell Us?

Price signal

A price change that tells people to use less or supply more of something.

In: Why Do We Trade?

Price signals

Prices that carry information about scarcity and wants, coordinating millions of decisions.

In: The Moral Case for Markets

Price support

A government program that keeps a farm price or income from falling below a set level.

In: Who Benefits from Farm Price Supports?

Primary deficit

The deficit not counting interest on the debt.

In: Is the National Debt a Problem?

Prime age

Ages 25 to 54, after most people finish school and before most retire.

In: What Does Labor Force Participation Tell Us?

Private property

A resource controlled by a person or firm that bears the costs and reaps the rewards.

In: Who Owns It, and Why Does It Matter?

Procedural justice

Fairness of the rules and process, such as no force, fraud, or rigged rules.

In: What Makes an Economy Just?

Producer surplus

The gap between the price a seller receives and the least the seller would accept.

In: What Is a Good Deal Worth?

Production function

The relationship between the inputs a business uses and the output it gets.

In: What Does It Really Cost to Make Something?

Productivity

How much a worker produces in an hour.

In: Should We Bring Manufacturing Home?

Productivity effect

Lower costs and prices that raise demand for goods, and for workers elsewhere.

In: Will Technology Take Our Jobs?

Profits and losses

The market’s reward for creating value for customers and its penalty for wasting scarce resources.

In: Why Are Gas Prices So High?, Why Are Groceries So Expensive?

Progressive tax

A tax that takes a larger share of income as income rises.

In: How Does the Government Tax, Spend, and Borrow?, How Unequal Is America?

Property right

The authority to decide how a resource is used, to keep what it earns, and to sell it.

In: Who Owns It, and Why Does It Matter?

Property rights

Secure, enforceable claims to own, use, and trade what you have.

In: How Did the World Get Rich?

Protectionism

Policies that shield domestic producers from foreign competition.

In: Who Pays for Tariffs?

Prudence

The virtue of taking sensible care of your own health, money, and reputation.

In: Beyond the Invisible Hand: Who Was Adam Smith?

Public choice

The study of politics using the same tools economists use to study markets.

In: Who Really Runs the Economy?, Who Should Decide?

Public good

A good no one can be kept from using, and one person’s use doesn’t reduce another’s.

In: Who Should Decide?

Purchasing power parity (PPP)

A way to compare countries by valuing output at what money actually buys in each.

In: How Do We Measure the Economy?

Q

Quantitative easing (QE) and tightening (QT)

Large Fed bond purchases to lower long-term rates, and the reverse.

In: What Does the Fed Do?

Quantity theory of money

The idea that, over time, prices rise with money relative to output.

In: What Does the Inflation Rate Tell Us?

Quintile

One-fifth of households, ranked by income.

In: How Unequal Is America?

R

r versus g

Whether the interest rate on the debt is below or above the economy’s growth rate.

In: Is the National Debt a Problem?

Rate of return

What an investment pays, as a percent of what was put in.

In: What Sets the Price of Borrowing?

Rational expectations

The idea that people use all available information, including expected policy, to forecast the future.

In: Should Government Fight Recessions?

Rationing

Any method of deciding who gets a scarce good: price, line, lottery, or rule.

In: What Makes an Economy Just?

Real GDP

GDP with price changes taken out, so it tracks actual output.

In: How Do We Measure the Economy?

Real interest rate

An interest rate minus expected inflation.

In: What Does the Fed Do?

Real value

A value adjusted for inflation, measuring buying power.

In: What Does the Inflation Rate Tell Us?

Recessionary gap

When real GDP is below potential and unemployment is above normal.

In: What Causes Booms and Busts?

Reference price

The target price below which Price Loss Coverage pays farmers the difference.

In: Who Benefits from Farm Price Supports?

Refining margin

The gap between the price of crude and the wholesale price of gasoline, also called the crack spread.

In: Why Are Gas Prices So High?

Regressive tax

A tax that takes a smaller share of income as income rises.

In: How Does the Government Tax, Spend, and Borrow?

Regulatory capture

When regulation ends up serving the industry it is supposed to oversee.

In: Who Should Decide?

Reinstatement

New tasks created by technology that give people new work to do.

In: Will Technology Take Our Jobs?

Relative mobility

Moving up or down the income ranks compared with others your age.

In: How Unequal Is America?

Relative poverty line

A line set as a share of typical income, so it rises as incomes rise.

In: How Unequal Is America?

Relative price

The price of one good compared with others.

In: What Does the Inflation Rate Tell Us?

Relative price change

One good becoming more expensive compared with others.

In: Why Are Gas Prices So High?, Why Are Groceries So Expensive?

Rent control

A legal limit on the level of rent or how fast it can rise.

In: Does Rent Control Make Housing Affordable?, Why Is Housing So Expensive?

Rent seeking

Spending resources to win favors from government instead of serving customers.

In: Why Do Profits and Losses Matter?

Rent stabilization

A limit on yearly rent increases, often set by a board.

In: Does Rent Control Make Housing Affordable?

Rent-seeking

Spending resources to win a prize created by a rule, rather than by creating value.

In: What Is a Good Deal Worth?, How Unequal Is America?

Repugnant transaction

A trade both sides want that others think should not be allowed.

In: What Is a Good Deal Worth?, Who Should Decide?

Reserves

Money banks keep in their accounts at the Fed and use to pay one another.

In: What Does the Fed Do?

Reshoring

Bringing production back to the home country.

In: Should We Bring Manufacturing Home?

Residency slot

A paid training position new doctors need before they practice.

In: Why Is Health Care So Expensive?

Retaliation

Tariffs other countries impose in response, often on U.S. exports.

In: Who Pays for Tariffs?, Should We Bring Manufacturing Home?

Risk

How uncertain the return on an investment is.

In: What Sets the Price of Borrowing?, Why Do Profits and Losses Matter?

Rule of 70

Divide 70 by a growth rate to estimate how many years it takes to double.

In: What Makes Economies Grow?

Rule of law

Rules that apply equally to everyone, including property rights and enforceable contracts. Markets depend on it.

In: The Moral Case for Markets, How Did the World Get Rich?

Résumé experiment

A study that sends employers identical résumés that differ only in a name or other trait.

In: Why Do Some Jobs Pay More Than Others?

S

Salience

How visible a price or tax is when people decide.

In: How Do People Respond to Prices?

Saving glut

Bernanke’s term for the rise in saving abroad that flowed to the United States.

In: Is the Trade Deficit a Problem?

Saving–investment gap

When a country invests more than it saves, which matches its trade deficit.

In: Is the Trade Deficit a Problem?, Should We Bring Manufacturing Home?

Scarcity

Having fewer resources, including time, than it would take to meet all our wants.

In: Why Isn’t Good Good Enough?

Scope of practice

Rules on what each type of provider may legally do.

In: Why Is Health Care So Expensive?

Secondary earner

In a two-earner household, the person who earns less, often taxed at the household’s rate.

In: What Does Labor Force Participation Tell Us?

Sectoral training

Job training built around specific jobs that local employers need to fill.

In: Will Technology Take Our Jobs?

Seen and unseen

Bastiat’s idea: look past a policy’s visible effects to its hidden ones.

In: Who Pays for Tariffs?, Why Isn’t Good Good Enough?

Self-interest

Caring about your own goals, family, and future. Not the same as greed, which ignores others.

In: The Moral Case for Markets

Services surplus

Selling more services abroad, such as software or travel, than we buy.

In: Is the Trade Deficit a Problem?

Short run

The period before people have had time to fully adjust to a price change.

In: How Do People Respond to Prices?, What Does It Really Cost to Make Something?

Short-run aggregate supply (SRAS)

The total output firms will produce at each price level while wages and other input costs are fixed.

In: What Causes Booms and Busts?

Shortage

More is wanted than offered at the current price, so buyers bid the price up.

In: Where Do Prices Come From?, Does Rent Control Make Housing Affordable?

Signaling

Using a degree or other credential to show employers ability they can’t see directly.

In: Why Do Some Jobs Pay More Than Others?

Social democracy

A market economy with high taxes and a large welfare state.

In: Markets, Planning, or Something in Between?

Soft budget constraint

Kornai’s term for firms that expect to be rescued when they lose money.

In: Markets, Planning, or Something in Between?, Why Do Profits and Losses Matter?

Specialization

Dividing work so each person or firm focuses on a narrow set of tasks.

In: What Makes Economies Grow?, Why Do We Trade?, Should We Bring Manufacturing Home?

Spillover

An effect of a policy on people outside it, such as owners of nearby homes.

In: Does Rent Control Make Housing Affordable?, Does the Minimum Wage Help Low-Wage Workers?

Stablecoin

A digital token designed to keep a steady value, such as one dollar, backed by reserve assets.

In: Where Does Money Come From?

Stagflation

Rising unemployment and rising inflation at the same time, usually after a supply shock.

In: What Causes Booms and Busts?

Standard-of-living debate

Historians’ long argument over whether early industry made ordinary workers better off.

In: How Did the World Get Rich?

Startup rate

The share of employer firms in a given year that are brand new.

In: Who Really Runs the Economy?

State capitalism

The state as a major owner and investor inside a market economy, pursuing political goals.

In: Markets, Planning, or Something in Between?

State-owned enterprise

A firm owned and controlled by the government.

In: Markets, Planning, or Something in Between?

Statutory incidence

Who the law says must pay a tax to the government.

In: How Do People Respond to Prices?

Sticker price

The published tuition before any aid or discounts.

In: Why Does College Cost So Much?

Sticky prices

Prices that change slowly even when supply or demand shifts.

In: Where Do Prices Come From?

Sticky prices and wages

Prices and wages that adjust slowly because of contracts, menus, and habits.

In: What Causes Booms and Busts?

Sticky wages and prices

Wages and prices that adjust slowly because of contracts, menu costs, and habits.

In: Should Government Fight Recessions?

Stock

A share of ownership in a company.

In: What Sets the Price of Borrowing?

Store of value

Something that can be held and spent later without losing much value.

In: Where Does Money Come From?

Strategic Petroleum Reserve

The federal government’s emergency stockpile of crude oil.

In: Why Are Gas Prices So High?

Structural unemployment

A mismatch between workers’ skills or locations and available jobs.

In: What Does the Unemployment Rate Tell Us?

Substitutes

Goods that can replace each other, such as coffee and tea.

In: When Does a Higher Price Pay Off?, Where Do Prices Come From?, Why Are Groceries So Expensive?

Sunk cost

Money, time, or effort already spent that can’t be recovered.

In: What Does It Really Cost to Make Something?, Why Isn’t Good Good Enough?

Supply

How much sellers are willing and able to offer at each price.

In: Where Do Prices Come From?

Supply shock

An event that shifts SRAS, moving output and prices in opposite directions.

In: What Causes Booms and Busts?, What Does the Inflation Rate Tell Us?, Why Are Gas Prices So High?, Why Are Groceries So Expensive?

Surplus (excess supply)

More is offered than wanted at the current price, so sellers cut the price.

In: Where Do Prices Come From?, Who Benefits from Farm Price Supports?

Sympathy (Smith’s sense)

Fellow-feeling: imagining yourself in another person’s place and sharing how they feel.

In: Beyond the Invisible Hand: Who Was Adam Smith?

System of natural liberty

Smith’s name for an economy where people may pursue their own interests as long as they obey the laws of justice.

In: Beyond the Invisible Hand: Who Was Adam Smith?

T

Tariff

A tax on imported goods, paid by the importer at the border.

In: Who Pays for Tariffs?, Should We Bring Manufacturing Home?

Tariff-rate quota

A set amount of imports enters at a low tariff; anything above it pays a higher one.

In: Why Are Groceries So Expensive?

Task

One piece of a job; most jobs are bundles of many tasks.

In: Will Technology Take Our Jobs?

Tax exclusion

Income that isn’t taxed, like job-based insurance.

In: Why Is Health Care So Expensive?

Tax incidence

Who really bears the cost of a tax, buyers or sellers, and in what shares.

In: How Do People Respond to Prices?, When Does a Higher Price Pay Off?, How Does the Government Tax, Spend, and Borrow?, Who Pays for Tariffs?

Technological unemployment

Keynes’s term for job losses that come faster than new uses for labor appear.

In: Will Technology Take Our Jobs?

Third-party payment

When someone other than the buyer pays part of the bill.

In: Why Does College Cost So Much?, Why Is Health Care So Expensive?

Title

A legal record showing who owns an asset, which lets it be sold or borrowed against.

In: Who Owns It, and Why Does It Matter?

Total cost

Fixed cost plus variable cost.

In: What Does It Really Cost to Make Something?

Total factor productivity

Growth left over after counting more capital and skill: better ideas and better use of resources.

In: What Makes Economies Grow?

Total revenue

The price times the quantity sold; the money coming in.

In: When Does a Higher Price Pay Off?

Total surplus

Consumer surplus plus producer surplus; the total gain from trade in a market. Also called social surplus.

In: What Is a Good Deal Worth?

Trade deficit

Buying more goods and services from other countries than we sell to them.

In: Is the Trade Deficit a Problem?, Should We Bring Manufacturing Home?

Trade-off

Getting more of one thing by accepting less of another.

In: Why Isn’t Good Good Enough?

Tragedy of the commons

Overuse of an open-access resource because each user bears only part of the cost.

In: Who Owns It, and Why Does It Matter?

Transaction costs

The costs of finding, bargaining with, and enforcing deals with others.

In: Who Owns It, and Why Does It Matter?

Transfer

Money that moves from one person or group to another, such as tax revenue, without being lost.

In: What Is a Good Deal Worth?

Transfer payment

Money paid to people with no good or service received in return, such as Social Security.

In: How Does the Government Tax, Spend, and Borrow?

Transfer payments

Government payments to households, in cash (Social Security) or in kind (Medicaid, food aid).

In: How Unequal Is America?

Treasury securities

Bills, notes, and bonds the federal government sells to borrow.

In: How Does the Government Tax, Spend, and Borrow?

Trust fund

An account that holds a program’s past surpluses, such as Social Security’s.

In: Is the National Debt a Problem?

Tuition discount

Aid a college gives from its own funds, cutting its price.

In: Why Does College Cost So Much?

Turnover

How often workers leave jobs and must be replaced.

In: Does the Minimum Wage Help Low-Wage Workers?

U

U-6

The broadest BLS measure: unemployed, marginally attached, and involuntary part-timers.

In: What Does the Unemployment Rate Tell Us?

Uncertainty

Knight’s term for what can’t be measured or insured, and the source of profit.

In: Why Do Profits and Losses Matter?

Underemployment

Working in a job that doesn’t require your degree.

In: Why Does College Cost So Much?

Unemployed

Without a job, available to work, and actively looked in the past four weeks.

In: What Does the Unemployment Rate Tell Us?

Unemployment rate

The unemployed as a share of the labor force.

In: What Does the Unemployment Rate Tell Us?

Unintended consequence

A result a policy’s authors did not aim for, often working against its goal.

In: Does Rent Control Make Housing Affordable?, Who Benefits from Farm Price Supports?

Unit elastic

Quantity changes by the same percentage as price.

In: When Does a Higher Price Pay Off?

Unit of account

The measure in which prices and debts are stated.

In: Where Does Money Come From?

Useful knowledge

Mokyr’s term for knowing both how things work and how to make them.

In: How Did the World Get Rich?

Usury law

A law that limits the interest rate lenders may charge.

In: What Sets the Price of Borrowing?

V

Vacancy decontrol

A rule that lets the rent reset to the market when a tenant moves out.

In: Does Rent Control Make Housing Affordable?

Value added

What a business adds to the materials it buys.

In: How Do We Measure the Economy?

Value of a statistical life

What people together will pay for small risk reductions that, on average, prevent one death.

In: Why Isn’t Good Good Enough?

Value of the marginal product

The extra output from one more worker times its price.

In: Why Do Some Jobs Pay More Than Others?

Variable cost

A cost that rises and falls with output.

In: What Does It Really Cost to Make Something?

Variable input

An input that can be changed in the short run, such as hours of work.

In: What Does It Really Cost to Make Something?

Veil of ignorance

Rawls’s test: choose rules without knowing who you will be in society.

In: What Makes an Economy Just?

Voluntary exchange

A trade both sides freely agree to because each expects to gain.

In: The Moral Case for Markets

W

Wage insurance

Payments that make up part of the pay cut when a laid-off worker takes a lower-paying job.

In: Will Technology Take Our Jobs?

Wage premium

How much more workers with a degree earn.

In: Why Does College Cost So Much?

Wealth (net worth)

What a household owns, such as homes, savings, and stocks, minus what it owes.

In: How Unequal Is America?

Wealth Is Zero-Sum fallacy

Otteson’s name for the belief that one person’s gain must be another’s loss.

In: Why Do We Trade?

Willingness to accept

The least a person would take to give up a good or sell it.

In: What Is a Good Deal Worth?

Willingness to pay

The most a buyer would pay for a good.

In: What Is a Good Deal Worth?

Winner-take-all market

A market where small differences in skill bring very large differences in pay.

In: Why Do Some Jobs Pay More Than Others?

Z

Zoning

Local rules on what can be built and where.

In: Why Is Housing So Expensive?