How Markets Work + Government Intervention! Flashcards
What’s rational decision making for consumers, firms and the government?
Consumers aim to maximise utility, firms aim to maximise profit and governments aim to maximise social welfare.
What’s utility?
The satisfaction gained from consuming a product.
What’s demand?
The ability and willingness to buy a particular good/service at a given price at a given time.
What factors cause the demand curve to shift?
Population
Income
Related goods
Advertising
Tastes/fashion
Expectations
Seasons
Why does the demand curve slope downward?
There’s an inverse relationship between price and quantity.
What’s composite demand?
When the good demanded has more than one use.
What’s derived demand?
When the demand for one good is related for the demand of another.
What’s joint demand?
When goods are bought together.
What’s the law of diminishing marginal utility?
The satisfaction derived from the consumption of an additional unit of a good will decrease as more of a good is consumed.
What’s price elasticity of demand?
The responsiveness of quantity demanded to a change in price.
% change in demand / % change in price.
What are the values for PED?
Unitary elastic: PED = 1
Elastic: PED > 1
Inelastic: PED < 1
Perfectly inelastic: PED = 0
What factors influence PED?
Availability of substitutes.
Time.
Necessity.
Percentage of total expenditure.
Addictiveness.
What’s income elasticity of demand?
The responsiveness of quantity demanded to a change in real incomes.
% change in demand / % change in real incomes.
What are the values for YED?
Inferior goods: PED < 0
Normal goods: PED > 0
Luxury goods: PED > 1
What’s cross elasticity of demand?
The responsiveness of quantity demanded for good x in response to a change in price of good y.
What are the values of XED?
Complementary goods: XED < 0
Substitutes: XED > 0
Unrelated goods: XED = 0
What’s supply?
The quantity of a good/service that a producer is willing and able to supply at a given price at a given time.
What factors cause the supply curve to shift?
Subsidies
Costs of production
Environment
Number of firms
Taxation
Technology
What’s joint supply?
When an increase in supply of one good decreases the supply of another.
What’s price elasticity of supply?
The responsiveness of quantity supplied to a change in price.
% change in supply / % change in price.