Economics

Agglomeration economies are productivity and cost advantages arising from the geographic concentration of firms, workers, and economic activity.

Aggregate demand is planned spending on an economy’s domestically produced final goods and services at a given overall price level.

Auction theory studies how bidding rules, information, and strategic behavior determine prices, revenues, and the allocation of goods and services.

Average cost is total production cost divided by output, used to analyze unit costs, profitability, and production scale.

Average variable cost is variable production cost per unit of output, used to analyze cost curves and short-run shutdown decisions.

A balance sheet reports an entity’s assets, liabilities, and equity at a specified date, providing a snapshot of its financial position.

A bank is a financial institution that provides deposit, lending, payment, or related services under a legal and regulatory framework.

Bank capital is loss-absorbing funding that supports a bank’s solvency and forms the basis of regulatory capital adequacy requirements.

Bank reserves are cash and central-bank balances held by banks to support payments, liquidity management, and monetary policy implementation.

A bank run occurs when many depositors rapidly withdraw funds because they fear that their bank may be unable to repay them.

Barriers to entry are obstacles that prevent or delay new competitors from entering a market and competing effectively with established firms.

The Basel Accords are international standards for bank capital, risk management, supervision, and liquidity, developed to strengthen banking-system resilience.

Behavioral economics incorporates psychological evidence into economic analysis to explain how people make decisions and how those decisions shape economic outcomes.

A bond is a debt security through which an issuer borrows funds and promises payments under specified contractual terms.

Bounded rationality describes goal-directed decision-making constrained by limited knowledge, cognitive capacity, and time.

The business cycle is the recurrent, irregular alternation between expansion and contraction in an economy’s aggregate activity.

A central bank is a public monetary institution responsible for monetary policy, central bank money, and functions supporting financial and payment-system stability.

Collateral is an asset committed to secure a financial obligation, providing a creditor with protection if the obligor defaults.

Comparative advantage is the ability to produce a good or service at a lower opportunity cost than another producer, creating scope for mutually beneficial specialization and trade.

A consumer price index measures changes over time in the prices of goods and services purchased by households, providing a widely used indicator of consumer inflation.

Consumer surplus measures the monetary benefit buyers obtain when their willingness to pay exceeds what they actually pay.

Creative destruction is the process through which innovation generates economic growth while displacing established products, technologies, firms, and activities.

Credit risk is the possibility of financial loss when a borrower or counterparty fails to fulfil contractual obligations or experiences deteriorating creditworthiness.

Deadweight loss is the reduction in total economic surplus caused by an allocation that differs from the socially efficient outcome.

Deflation is a sustained decline in the general price level, increasing money’s purchasing power and potentially intensifying debt burdens and economic weakness.

Deposit insurance protects eligible bank deposits against losses when an insured institution fails, subject to defined coverage limits and legal conditions.

Deposit money consists of balances held at banks that serve as money through payments, transfers, and conversion into cash.

Diminishing returns occur when successive additions of one input, with other inputs held constant, produce progressively smaller increases in output.

Disposable income is income available for consumption or saving after accounting for taxes, social contributions, and relevant transfers.

Econometrics combines economic theory and statistical methods to estimate relationships, test hypotheses, forecast outcomes, and investigate causal effects using data.

Economic growth is an increase in real economic output over time, driven by expanding productive resources and improvements in productivity.

Economic profit is revenue remaining after all explicit costs and the opportunity costs of owner-supplied resources have been deducted.

Economic regulation comprises public rules governing market entry, prices, service provision, and competition, particularly in industries with persistent market power.

Economics studies how people and societies allocate scarce resources, organize production and exchange, and distribute income and wealth.

Economies of scale are reductions in average production costs achieved as the scale of output increases.

A family of economic models explaining sustained growth through investment, human capital accumulation, and innovation generated within the economy.

An exchange rate expresses the value of one currency in another and connects international trade, financial markets, and monetary policy.

An externality is a cost or benefit that an economic activity imposes on others without being fully reflected in prices or contractual arrangements.

The Federal Reserve System is the central banking system of the United States, responsible for monetary policy, financial supervision, and payment services.

Financial intermediation channels funding through institutions that assess borrowers, transform financial claims, and manage risks.

A financial market enables the issuance and trading of financial assets, connecting funding needs with investment and risk-management activities.

Fiscal policy uses government taxation, spending, and borrowing to influence economic activity, income distribution, and long-term development.

A fixed cost remains unchanged in total as output varies within a specified period and range of activity.

Forward guidance is central-bank communication about future monetary policy intended to influence expectations and present financial conditions.

A broad price index that measures changes in the prices of domestically produced goods and services by comparing nominal GDP with real GDP.

Gross domestic product measures the value of production within an economy over a specified period and is a central indicator of economic activity.

American social scientist whose research connected organizational decision-making, bounded rationality, artificial intelligence, and cognitive science.

Human capital is the knowledge, skills, experience, and health embodied in people that contribute to productive activity and well-being.

Income inequality describes differences in the distribution of income among individuals or households, measured using income shares, ratios, and statistical indices.

Inflation is a sustained rise in an economy’s general price level, reducing money’s purchasing power and affecting incomes, contracts, and economic policy.

Inflation expectations are beliefs about future price increases that influence economic decisions, financial markets, and monetary policy.

Inflation targeting is a monetary policy framework built around a publicly announced inflation objective, forward-looking decisions, and central bank accountability.

Information asymmetry occurs when parties to an economic interaction possess unequal access to relevant information, affecting decisions, incentives, and market outcomes.

Innovation is the implementation of significantly new or improved products or processes, shaping economic activity, organizational performance, and social change.

Instrumental variables identify and estimate causal effects using external variation in an explanatory variable, subject to assumptions about relevance and validity.

An interest rate expresses the cost of borrowing or return on lending as a percentage of principal over a specified period.

British economist whose theories of employment, demand, and money helped establish modern macroeconomics and shaped the postwar international monetary order.

Joseph Schumpeter was an Austrian-born economist known for explaining capitalist development through entrepreneurship, innovation, and creative destruction.

Kenneth Arrow was an American economist whose work on social choice, general equilibrium, uncertainty, and learning helped shape modern economic theory.

Keynesian economics explains how aggregate demand influences output and employment and provides a basis for countercyclical economic policy.