year 12 definitions Flashcards
Ad Valorem Tax
A tax levied on a commodity set as a percentage of selling price
Adverse Selection
A situation in which a person at risk is more likely to take out insurance
Allocative Efficiency
Achieved when consumer satisfaction is maximised
Asymmetric Information
A situation in which some participants in a market have better information about the market than others
Average Total Cost
Total cost divided by quantity produced
Buffer Stock
A scheme intended to stabilise the price of a commodity by buying excess supply in periods when supply is high, and selling this stock when supply is low
Capitalism
A system of production in which there is private ownership of productive resources, and individuals are free to pursue their objectives with minimal government interference
Centrally Planned Economy
Decisions on resource allocation are guided by the state
Ceteris Paribus
A Latin phrase meaning ‘other things being equal’. It is used in economics when we focus on change in one variable while holding other influences constant
Comparative Static Analysis
Examines the effect on equilibrium of a change in the external conditions affecting a market
Competitive Demand
Demand for goods that are in competition with each other
Competitive Market
A market in which individual firms cannot influence the price they are selling because of competition from other firms
Competitive Supply
A situation in which a firm can use its factors of production to produce alternative products
Complements
Two goods are said to be complements if people tend to consume them jointly, so that an increase in the price of one good causes the demand of the other good to fall
Composite Demand
Demand for a good that has multiple uses
Composite Supply
Where a product produced by a firm serves multiple markets
Consumer Surplus
The value that consumers gain from consuming a good or service over and above the price paid
Consumption Externality
An externality that affects the consumption side of a market which may be either positive or negative
Cost Efficiency
Appropriate combination of inputs of factors of production, given relative prices of those factors
Cross elasticity of demand (XED)
measure of sensitivity of quantity demanded on one good/service to a change in price of another
%change in quanity demanded good A divided by %change price of good A
Demand
Quantity of a good or service that consumers are willing and able to buy at any possible price in a given period
Demand Curve
A graph showing how much of a good or service will be demanded by consumers at a given price
Demerit good
A good that brings less benefit to consumers than they expect, such that too much will be consumed by individuals in a given market
Derived Demand
Demand for a factor of production or a good which derives not from the factor or the good itself but from the good it produces
Division of Labour
A process whereby the production procedure is broken down into a sequence of stages, and workers are assigned to particular stages
Economic Efficiency
A situation in which both productive efficiency and allocative efficiency have been reached
Economic Growth
An expansion in productive capacity of the economy
Externality
A cost or benefit that is external to market transaction, and thus not reflected in market prices
Factors of Production
Resources used in the production process; inputs into production, including labour, capital, land and entrepreneurship
Firm
An organisation that bring together factors of production in order to produce output
Fixed Costs
Costs incurred by a firm that do not vary with output level
Free Market Economy
One in which resource allocation is guided by market forces, without intervention from the state
Free-rider problem
When an individual cannot be excluded from consuming a good and thus has no incentive to pay for its provision
Government Failure
A misallocation of resources arising from government intervention