Pearson Edexcel Level 3 Advanced GCE in Economics A Specification

Essential vocabulary flashcards covering the fundamental microeconomic, macroeconomic, and global concepts specified in the Pearson Edexcel Level 3 Advanced GCE in Economics A (9EC0).

The Economic Problem

The fundamental problem of scarcity, defined as the existence of unlimited wants in the presence of finite resources.

Ceteris Paribus

An assumption used in developing economic models meaning 'all other factors remain constant' or 'equal'.

Positive Economic Statement

An objective statement of fact that can be tested, accepted, or rejected by reference to available evidence.

Normative Economic Statement

A subjective statement involving value judgements that cannot be tested or verified solely by reference to evidence.

Opportunity Cost

The cost of the next best alternative foregone when an economic choice or decision is made by consumers, producers, or government.

Production Possibility Frontier (PPF)

A curve depicting the maximum productive potential of an economy, showing combinations of capital and consumer goods that can be produced when resources are fully and efficiently allocated.

Division of Labour

The separation of a production process into separate tasks, each carried out by a specialized worker, as highlighted by Adam Smith.

Functions of Money

The four specific functions served by money: a medium of exchange, a measure of value, a store of value, and a method of deferred payment.

Free Market Economy

An economic system where scarce resources are allocated primarily through the market forces of supply and demand without state intervention, associated with Adam Smith and Friedrich Hayek.

Command Economy

An economic system in which the state allocates resources and decides what, how, and for whom goods and services are produced, associated with Karl Marx.

Diminishing Marginal Utility

The concept that as an individual consumes additional units of a good or service, the extra satisfaction or utility gained from each successive unit decreases, influencing the downward slope of the demand curve.

Price Mechanism

The system through which market forces determine the allocation of resources via three primary functions: rationing, incentive, and signalling.

Consumer Surplus

The difference between the total amount that consumers are willing and able to pay for a good or service and the total amount that they actually pay.

Producer Surplus

The difference between the market price that producers receive for a good or service and the minimum price at which they are willing to supply it.

Public Good

A good that exhibits both non-rivalry (consumption by one person does not diminish availability to others) and non-excludability (individuals cannot be excluded from consuming it).

Free Rider Problem

A market failure where consumers benefit from a non-excludable public good without paying for it, leading to under-provision or non-provision by the private sector.

Asymmetric Information

An information gap where one party in an economic transaction possesses more or superior information relative to the other party, causing a misallocation of resources.

Government Failure

A situation where government intervention to remedy market failure leads to a net welfare loss, resulting from unintended consequences, distorted price signals, excessive administrative costs, or information gaps.

Purchasing Power Parities (PPPs)

An economic adjustment factor that equalizes the purchasing power of different currencies by taking into account differences in price levels and the cost of living across countries.

Aggregate Demand (AD)

The total planned expenditure on goods and services produced in an economy at a given price level over a given period, calculated as $AD = C + I + G + (X - M)$.

Multiplier Process

The mechanism whereby an initial injection of spending into the circular flow of income leads to a larger final change in real national output, calculated as $\frac{1}{1 - MPC}$ or $\frac{1}{MPW}$, where $MPW = MPS + MPT + MPM$.

Principal-Agent Problem

A conflict arising from the divorce of ownership from control, occurring when managers (agents) pursue objectives that diverge from those of the company owners or shareholders (principals).

Satisficing

A business objective where a firm aims to achieve an acceptable minimum level of profit to satisfy shareholders rather than strictly maximizing profit.

Allocative Efficiency

A state of resource allocation where goods are produced in proportions matching consumer preferences, achieved at the output level where price equals marginal cost ($P = MC$).

Productive Efficiency

A state achieved when production is conducted at the lowest possible cost, corresponding to the minimum average total cost ($AC$) on the cost curve.

Monopsony

A market structure or condition in which there is only one dominant buyer of a good, service, or factor of production such as labour.

Contestability

A measure of how open a market is to new entrants, characterized by low barriers to entry and exit and an absence of significant sunk costs.

Regulatory Capture

A form of government failure occurring when a regulatory agency acts in the interest of the dominant commercial or political interests of the industry it is tasked with regulating.

Comparative Advantage

The economic principle that a country should specialize in and export goods and services that it can produce at a lower opportunity cost relative to other nations.

Terms of Trade

A measure of the relative price of a country's exports compared to its imports, calculated as $\frac{\text{Index of Export Prices}}{\text{Index of Import Prices}} \times 100$.

Human Development Index (HDI)

A composite index measuring economic development based on three equally weighted dimensions: health (life expectancy), education (mean and expected years of schooling), and living standards (GNI per capita at PPP).

Gini Coefficient

A numerical ratio used to measure income or wealth inequality derived from the Lorenz curve, with values ranging from 0 (perfect equality) to 1 (perfect inequality).

Laffer Curve

A conceptual model illustrating the relationship between tax rates and total tax revenues, demonstrating that beyond a certain tax rate, total tax revenue begins to fall.

Synoptic Assessment

An assessment component (such as Paper 3 in this specification) that requires students to make connections across all four themes and combine knowledge, understanding, and higher-order skills.