Microeconomics Key Words Flashcards
Abnormal profit
Profits above normal profits
Allocative efficiency
Achieved when society is producing the appropriate amount of goods and services relative to consumer preferences
Arbitrage
A process by which prices in two market segments will be equalised as a result of purchase and resale by market participants
Average cost
Total cost divided by the quantity produced; sometimes known as unit cost
Average revenue
The revenue received by a firm per unit of output; it is total revenue divided by the quantity sold
Barrier to entry
A characteristics of a market that prevents new firms from readily joining the market
Budget line
Shows the boundary of an individual’s consumption set, given the amount available to spend and the prices of the goods
Cartel
An agreement between firms on price and output with the intention of maximising joint profits
Competition policy
An area of economic policy designed to promote competition within markets to encourage efficiency and protect consumer interests
Conglomerate merger
A merger between two firms operating in different markets
Constant returns to scale
Found when long run average costs remains constant with an increase in output - in other words, when output and costs rise at the same rate
Contestable market
A market in which the existing firm makes only normal profit as it cannot set price higher than average cost without attracting entry, owing to the absence of barriers to entry and sunk costs
Corporate social responsibility
Actions that firms take in order to demonstrate its commitment to behaving in the public interest
Dependency ratio
The ratio of those aged 15 and under and 65 and above to the working population
Derived demand
D mans for a good not for its own sake, but for what it produces
Discount
A process where by the future valuation of a cost or benefit it reduced (discounted) in order to provide an estimate of its present value
Discrimination
A situation in a labour market where some people receive lower wages that cannot be explained by economic factors
Diseconomies of scale
Occur for a firm when an increase in the scale of production leads to higher long run average costs
Dominant strategy
A situation in game theory where a player’s best strategy is independent of those chosen by others
Dynamic efficiency
A view of efficiency that takes into account the effect of innovation and technical progress on productive and allocative efficiency in the long run
Economic rent
A payment received by a factor of production over and above what would be needed to keep it in its present use
Economically active
Active in the labour force, including employed, the self-employed and the unemployed
Economies of scale
Occur for a firm when an increase in the scale of production leads to production at lower long run average costs
Economies of scope
Economies arising when average costs fall as a firm increases output across a range of different products
Environmental Kuznets curve
A relationship between economic growth and environmental degradation, under which environmental degradation at first increases as an economy expands, but then may improve at higher average income levels
Equi-marginal principle
A consumer does best in utility terms by consuming at the point where the ratio of marginal utilities from two goods is equal to the ratio of their prices
External economies of scale
Economies of scale that arise fro. The expansion of the industry in which a firm is operating
Externality
A cost or benefit that is external to the market transaction, borne (or enjoyed) by a third party, and not reflected in market prices
Firm
An organisation that brings together factors of production in order to produce output
Fixed costs
Costs that do not vary with the level of output
Game theory
A method of modelling the strategic interaction between firms in an oligopoly
Horizontal merger
A merger between two firms at the same stage of production in the same industry
Human capital
The stock of skills and expertise that contributes to a worker’s productivity
Hypothecation
In the context of the transport sector, the principle that revenue raised from taxing transport should be used to improve the transport system
ILO unemployment rate
Measure of the percentage of the workforce who are without jobs but are available for work, willing to work and looking for work
Income effect
Reflects the way that a change in the price of goods affects purchasing power
Informal labour market
Economic activity that is not registered or recorded and so is not part of the formal labour market
Internal economies of scale
Economies of scale that arise from the expansion of a firm