External environment Flashcards
What is defined
the interaction of demand and supply for a particular item
market mechanism
What is defined
a situation in which potential buyers and sellers of an item or good come together for the purpose of exchange
market
what factors affect demand
price
Interrelated goods (substitutes and compliments)
Income levels (normal v inferior)
Fashion and expectation
Income distribution
What factors affect supply
price
Price of other goods
Price of related goods (joint supply)
Cost of making the good
Changes in tech
What is defined
the price of a good at which the volume demanded by consumers and the sieve are willing to supply are the same
equilibrium price
government intervention - what happens if price set is higher than equilibrium price
nothing - no effect on market forces
Government intervention - what happens if price set is lower than equilibrium price
Excess demand over supply
What is defined
The extent of a change in demand and or supply given a change in price
elasticity
Equation for PED
Proportional change in quantity/proportional change in price
where proportional change is change / original
PED < 1
demand inelastic
PED > 1
demand elastic
PED = 1
unit elasticity
PED = 0
Demand perfectly inelastic - vertical straight line
PED = infinity
demand perfectly elastic - horizontal straight line
PED = 1
Unit elasticity of demand, demand changes proportionately to change in price
factors influencing PED
availability of substitutes
Time horizon
Competitors pricing
Luxuries and necessities
Percentage of income spent on a good
Habit forming goods
What kind of good is described
non luxury targeting low income customers
Giffen goods - positive PED
High quality status related goods where demand increases as price increases
Veblen goods - positive PED
When demand for a good rises as income rises but then falls back as incomes pass a certain point what kind of good
inferior goods
What is defined
indication of the responsiveness of demand to changes in household income
income elasticity of demand
What is equation for income elasticity of demand
% change in quantity demanded/% change in household income
If income elasticity > 1 the good is
luxury, demand income elastic
If income elasticity between 0 and 1
normal goods/necessities - income inelasticy
Income elasticity < 0
inferior goods, demand negatively income elastic
What is defined
a measure of the responsiveness of demand for one good to changes in the price of another good
Cross elasticity of demand
Cross elasticity of demand equation
% change in quantity of A demanded/%change in price of B