supply & demand Flashcards
(12 cards)
Substitution
effect
When the price of one good falls, consumers will buy more of the cheaper good or service and less of the more costly good or service. So demand for the cheaper good will increase; demand for the costlier good decreases
Income effect
When prices fall, consumers can afford a greater quantity of goods and services (assuming income is fixed). So demand for these goods and services increases
inferior good
increase in income causes a fall in demand
normal good
increase in income increases demand
percentage change in price will be offset by an equivalent percentage change in quantity demanded
unitary PED
how to improve PES
1
Improve their technology
2
Introduce flexible working patterns
3
Have excess production capacity
factors affecting PED
Substitutes
Percentage of income
Luxary/necessity
Addiction/type of good
Time to adjust
factors affecting PES
Production lag
Stocks of finished products
Spare capacity
Substitutability of FOP
Time period due to fixed FOP
Government subsidies
rationing price function
prices rise to ration demand
incentive price function
prices incentivise to adjust
signalling price function
prices provide information to buyers and sellers influencing economic decisions
allocative price function
prices allocate resources from excess supply to excess demand