How Markets Work (1.2) Flashcards
(44 cards)
Assumptions of Rational Economic Decision Making
- consumers aim to maximise utility
- firms aim to maximise profits
- governments aim to maximise social welfare
Conditions of Demand
- population
- income
- related goods
- advertising
- taste
- expectations
- seasons
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
Price elasticity of demand
The responsiveness of demand to a change in the price of a good
Unitary Elastic PED
PED = 1
Relatively Elastic PED
PED > 1
Relatively inelastic PED
PED < 1
Perfectly elastic PED
PED = infinity
Perfectly inelastic PED
PED = 0
Factors influencing PED
- availibility of substitutes
- time
- necessity
- how large of a percentage of total expenditure
- addictive
Income Elasticity of Demand (YED)
The responsiveness of demand to a change in income
Inferior Good
YED < 0
Normal Good
YED > 0
Luxury Good
YED > 1
Significance of YED
- sales will be affected by changes in the income of the population
-may have an impact on the type of goods that a firm produces
Cross Elasticity of Demand (XED)
The responsiveness of demand for one product to the change in price of another product
Substitutes
XED > 0
Complimentary Goods
XED < 0
Unrelated Goods
XED = 0
Significance of XED
- firms need to know how price changes by other firms will impact them so they can take appropriate action
Demand
The ability to and willingness to buy a particular good at a given price and at a given moment in time
Supply
The ability and willingness to provide a good or service at a particular price at a given moment in time
The conditions of supply
- costs of production
- price of other goods
- weather
- thechnology
- goals of the supplier
- government legislation
- taxes and subsidies
- producer cartels
Price Elasticity of Supply (PES)
The responsiveness of supply to a change in price of the good