C7 - Definitions Flashcards
(117 cards)
Utility
The satisfaction received from consumption of goods or services.
Total utility
Total satisfaction received from consumption.
Marginal utility
Utility derived from the consumption of one more unit of good or service.
Positive marginal utility
When the consumption of an additional item increases the total utility.
Negative marginal utility
When the consumption of an additional item decreases the total utility.
Diminishing marginal utility
Fall in marginal utility as consumption increase.
Equimarginal principle
Consumer maximise their utility where their marginal valuation for each product consumed is the same.
Budget line
The combinations of 2 products obtainable with given income and prices.
Indifference curve
Shows the different combinations of two goods that give a consumer equal satisfaction.
Income effect
The income effect is the change in a good’s consumption brought by a change in real purchasing power.
Substitution effect
The substitution effect is the change in a good’s consumption associated with a change in the relative price of the good, with the level of utility constant.
Behavioural economics
A branch of economics that builds on the psychology of human behaviour in decision making.
Marginal rate of substitution
The rate at which a consumer is willing to give up amount of other good to obtain one extra unit of the good in question without affecting total satisfaction.
Consumer optimal point of consumption
Where the budget line touches or is at tangent to the indifference curve.
Giffen good
Demand falls as the price of the good falls and demand increases as the price increases.
Economic efficiency
Scarce resources are used in the most efficient way to produce maximum output.
Productive efficiency
Firm is producing using least possible resources and at the lowest possible cost. (lowest point on ATC curve)
Allocative efficiency
Firms are producing goods and services most wanted by consumers. (P = MC)
Pareto optimality
Not possible to make someone better off without making someone else worse off. (Resources are allocated in the most efficient way)
Dynamic efficiency
A form of productive efficiency that benefits a firm over time.
Market failure
A market failure is a situation where free markets fail to allocate resources efficiently.
Private costs
Costs that incrred by an individual who produces a good or service.
External costs
Those costs incurred and paid for by third parties not involved in the action.
Social costs
Total costs of a particular action.