Economics

A Priori
Reasoning from assumptions and logic before looking at data, often used to build economic models.
Abatement
Any action that reduces pollution or other harmful environmental damage.
Abatement Cost
The cost of reducing pollution, either for one more unit or for a total amount of cleanup.
Absolute Advantage
The ability to produce a good or service using fewer inputs than another producer.
Abstinence
An older economic term for postponing present consumption in order to save and invest for the future.
Accounts
How accounts organize financial records and reduce information problems in firms and public institutions.
Accrual Rate
The share of pensionable pay a defined-benefit plan credits for each year of service.
Acquisitions Approach
A CPI approach that records prices when households acquire goods and services rather than when they consume service flows over time.
Actuarially Fair Odds
Odds or premiums set equal to expected loss before expenses, capital costs, and risk loadings are added.
Adaptation
Investment and behavior change that reduces the damage caused by climate change.
Adjustment
The process by which markets, firms, households, or data series move toward a new position after a shock or new information.
Advisory, Conciliation and Arbitration Service (ACAS)
A UK public body that helps employers and workers resolve disputes at lower cost than prolonged conflict or litigation.
Agent-Based Modelling
A computational approach that simulates many interacting agents and studies the macro patterns that emerge from their behavior.
Aggregation
The process of combining many individual values into macro-level totals, averages, or indexes.
Aggregation Problem
The difficulty of representing a heterogeneous economy with a few aggregate variables without distorting the underlying relationships.
American Economic Association
A professional association that publishes economics research, runs conferences, and helps organize the economics job market.
Annuity Factor
The present value of a stream of equal payments and the key bridge between a lump sum and periodic income.
Annuity Rate
The payout rate that turns a premium or lump sum into periodic annuity income.
Anomalies in Economics
Systematic patterns in data or behavior that do not fit a commonly used benchmark model.
Anti-dumping Action
A trade-remedy investigation into whether imports are dumped and whether they injure a domestic industry.
Anti-Dumping Duty
An extra import tariff imposed after an anti-dumping investigation finds dumping and injury.
Anti-Pollution Measures
Policies that reduce pollution by pricing emissions, limiting them directly, or changing incentives.
Apprenticeship
A paid training arrangement that combines work experience with structured skill formation.
Appropriation Bill
Legislation that authorizes the government to spend public money for approved purposes.
Arbitrage
Profiting from price differences for the same or equivalent asset across markets or forms.
Arbitration
A dispute-resolution process where a neutral arbitrator issues a decision (often binding) outside the court system.
Arrow-Debreu Economy
A general-equilibrium model with complete contingent-commodity markets.
Arrow-Debreu State Price
The current price of one unit of payoff delivered in one specific future state.
Arrow's Impossibility Theorem
A result showing that no voting rule can satisfy several appealing fairness conditions at the same time.
Asia-Pacific Economic Cooperation (APEC)
A regional forum that promotes trade, investment, and economic cooperation across the Asia-Pacific.
Asset Stripping
A takeover or restructuring strategy focused on selling valuable assets rather than operating the firm as an integrated business.
Assets
Resources with economic value that can generate future benefits.
Asymmetric Information
A situation in which one side of a transaction knows more relevant information than the other.
Audit
An independent review of financial records and controls designed to improve credibility and reduce information problems.
Augmented Phillips Curve
A Phillips-curve framework that adds inflation expectations to the inflation-unemployment relationship.
Autarchy
A condition of economic self-sufficiency in which a country relies little or not at all on international trade.
Autonomous Investment
Investment spending that does not depend directly on current income or output.
Autonomous Pension Funds
Pension funds that are institutionally separate from the sponsoring employer or government budget.
Average Tax Rate
Total tax paid divided by the total tax base.
Avoidable Cost
A cost that disappears if a product, activity, or decision is not undertaken.
Avoidance
Lawful structuring of behavior or transactions to reduce tax liability.
Axiom
A basic assumption accepted without proof and used to build an economic model or theory.
Axioms of Preference
Basic assumptions used to describe rational preferences in consumer theory.
Balance
A condition of equality or offsetting forces used in economics to describe stable relationships or positions.
Balance Sheet
A statement showing assets, liabilities, and equity at a point in time.
Balancing Item
A statistical adjustment used when two theoretically equal aggregates do not match in measured data.
Banking
The business of taking deposits, extending credit, and providing payment and financial intermediation services.
Bankruptcy
A legal process for dealing with debts that cannot be repaid in full.
Barter
Direct exchange of goods or services without using money as the payment medium.
Barter Economy
An economy in which exchange takes place through direct trade rather than through money.
Base Period
The reference period against which an index number is compared.
Baseline
A baseline is the reference case used to compare actual outcomes, policy changes, or alternative scenarios.
Basis Point
A basis point is one hundredth of a percentage point, used to describe small changes in rates, yields, and spreads.
Batch Production
Batch production means making goods in groups or runs rather than as a continuous flow or as one-off custom output.
Battle of the Sexes
A coordination game in which both players prefer coordinating to mismatching, but each prefers a different coordinated outcome.
Bear
A bear is an investor or market participant who expects prices to fall and positions accordingly.
Benefits in Kind
Benefits in kind are goods or services provided directly rather than paid out as cash.
Benefits System
A benefits system is the set of public programs that provide income support or services when households face low income, unemployment, disability, or other need.
Benelux
Benelux is the economic union of Belgium, the Netherlands, and Luxembourg, often treated as an early example of regional economic integration.
Bergson-Samuelson Social Welfare Function
The Bergson-Samuelson social welfare function represents social welfare as a function of individual utilities, making value judgments explicit.
Beveridge Report
The Beveridge Report was the 1942 UK report that helped shape the postwar welfare state through proposals for social insurance and full-employment policy.
Bid
A bid is an offer price made by a buyer in a market, auction, or takeover process.
Big Bang
In economics, a big bang is a strategy of rapid, comprehensive reform rather than gradual, step-by-step adjustment.
Big Push
The big push is a development-economics idea that poor countries may need coordinated large-scale investment across sectors to escape low-level traps.
Bilateral Trade
Bilateral trade is trade conducted directly between two countries, often under a specific agreement or balancing arrangement.
Billion
A billion means one thousand million in modern economic and financial usage.
Biodiversity Index
A biodiversity index summarizes how many species are present and how evenly they are distributed in an ecosystem.
Biological Interest Rate
The biological interest rate is the return generated by population growth in simple overlapping-generations models.
Black Economy
The black economy consists of production, trade, and income that are hidden from the state to avoid tax, regulation, or legal detection.
Black Market
A black market is an illegal market in which goods or services are traded outside official rules, often at prices different from the legal price.
Black Swan
A black swan is a rare event with very large consequences that standard models often fail to anticipate.
Blair House Agreement
The Blair House Agreement was a 1992 U.S.-EC deal that helped break the agricultural deadlock in the Uruguay Round trade talks.
Blue-Collar Worker
A blue-collar worker is a worker whose job is centered on manual, technical, production, maintenance, or transport tasks.
Bonus
A bonus is pay given in addition to base wages or salary, usually to reward performance, retention, or a specific outcome.
Boom
A boom is a phase of rapid economic expansion marked by strong spending, rising output, tight labor markets, and often upward pressure on prices.
Competitive Advantage
A durable edge that lets a firm earn returns above rivals through lower cost, differentiation, or strategic positioning.
Cost-Effectiveness
A decision criterion that compares policy or project costs to measurable outcomes when benefits are not fully monetized.
Depreciation
How depreciation works for assets and currencies, and why the distinction matters in economics.
Economic Efficiency
A condition where resources are allocated to maximize total welfare given technology and constraints.
Financial Markets
Markets where financial claims (stocks, bonds, currencies, derivatives) are issued and traded to allocate capital and price risk.
Greenhouse Gases
Gases that trap heat in the atmosphere; economically, emissions create a global negative externality through climate damages.
Housing Association
A non-profit housing provider that supplies below-market or regulated housing within local housing systems.
Juglar Cycle
A medium-term business cycle, often linked to investment and credit dynamics, lasting roughly 7 to 11 years.
Menu Costs
The real costs firms face when changing prices, which can generate aggregate price stickiness.
Multilateralism
An approach to international economic cooperation based on common rules across many countries.
Not-for-Profit Organization
An organization that reinvests any surplus into its mission instead of distributing profits to owners.
Social Purpose Company
A for-profit corporate form that commits to a stated social or environmental purpose alongside profit.
Standard Industrial Classification
A coding framework used to classify business activities for statistics, regulation, and economic analysis.