Micro economics Flashcards
(30 cards)
The price mechanism involves 3 functions the …..
Rationing function
Signalling function
Incentive function
The rationing function
As prices increase demand decreases and amount of resources used is rationed
The signalling function
Change in price sends signal to supplier and customer E.g. buy more or supply more
The incentive function
Something that motivates producers and customers to change behaviour is low price but more
Utility
The satisfaction from consuming an item
Total utility
Total satisfaction from a given level of utility
Marginal utility
Change in satisfaction from consuming an extra unit
Law of diminishing marginal utility
As the amount consumed of a commodity increases the utility derived by the consumer from the additional units decreases
The 4 economic agents are
The consumer
Producer
Government
Workers
Price elasticity of demand
The responsiveness of demand to a change in price
What is the formulation of demand
%change in quantity demanded/%change in price
When is a product elastic
When % change in demand is greater than % change in price (0-1)
When is a product inelastic
When % change in demand is less than % change in price (-1)
Elastic vs inelastic on a supply and demand
Elastic demand is very flat inelastic demand is very steep
Price elasticity of supply
How sensitive supply is to a change in price (%change in quantity supplied / % change in price)
Income elasticity of demand
How sensitive demand is to a change in income (%change in quantity demanded/%change in income)
What is a normal good
A normal good is a good when demand rises as income rises ( when in formula will be a positive between 0 and 2)
An a inferior good
Is a good when demand falls as income rises and vice versa (negative number)
Cross elasticity of demand
The responsiveness of demand of one good to a change in price to a related good
Substitutes are positive
Compliments are negative
Pubic goods are (three things)
Non-rivalry
Non-excludable
Non-rejectable
Why should the government provide public goods
Non- rival consumption ?
May prevent under provision
May lead to eos
Helps poor afford stuff like healthcare
Quasi-public good
Has similar / some of the characteristics of a public good
Merit good
A commodity or service such as education that is regarded by society or government as a deserving public good
Characteristics of a merit good
Private or public
Positive marginal costs of suppling extra users
Limited in supply/ high opportunity costs
Rival & excludable & rejectable