Exam revision Flashcards
(108 cards)
Define “utility”
A measure of personal satisfaction experienced by the consumer of a good or service.
Define “marginal utility”
The change in satisfaction that a consumer experiences by consuming 1 more unit of a good or service.
Describe a diminishing marginal utility curve and give an example
a.k.a diminishing demand curve
The level of satisfaction decreases with the consumption of each additional unit of the good/service.
Downward curve.
Define “hazard”, “risk”, and “safety” and explain the 4 classes of hazard.
> Hazard:
- A risk to one’s personal safety, a potential source of danger
Risk
- The likelihood of a hazard occurring
Safety
- A judgement of the acceptability of the risk
CLASSES:
> Physical
- Those which threaten the physical safety of a worker.
- e.g. getting hit by a forklift
> Chemical
- Chemical substances which threaten the health/safety of a worker. - e.g. pesticides
> Biological
-
Other
Define, in terms of related goods, a substitute
A good that can be consumed in place of another; e.g. a hamburgers and sandwiches are substitute lunch options. If a burger shop opens next to a sandwich shop, sandwich sales are likely to go down.
Define, in terms of related goods, a complement
Goods that are provided together; e.g. fish and chips - if the price of potatoes goes up, fish sales are likely to go down.
What would shift the demand curve to the left?
A decrease in demand.
What should shift the demand curve to the right?
An increase in demand.
What would shift the supply curve to the left?
A decrease in supply
What would shift the supply curve to the right?
An increase in supply
What are some causes/reasons for shifts in the supply curve?
> Prices of other goods, particularly substitutions and complements > Input prices > Expected future prices > Changes in the number of suppliers > Changes/improvements in technology
Explain why the demand and supply curves take the shape that they do
Supply is driven by the cost of production
if the cost increases, the quantity that one is willing to supply decreases.
Demand is driven by price
if the price decreases, the amount that a consumer is willing to purchase increases, though that depends on the marginal utility.
Define ‘consumer surplus’
People paying less than they were prepared to
Define ‘producer surplus’
Getting more for your product than you would’ve been happy with
Explain what would happen to the supply and demand curves if the demand for Australian grain was expected to increase over the next few years
Demand curve shifts to the right
Price increases
Supply increases to capture increased price
= supply curve shift to the right
= price decreases back to original state
Increasing both supply and demand results in increased quantity being sold, but for the same price.
Define and explain price ceilings and their effects on the market
A price ceiling is the maximum legal price that a seller can charge for a product or service.
They can result in shortages (when the quantity of supply doesn’t match the demand) and black markets.
Define and explain price floors (price support) and their effects on the market
A price floor is a guarenteed minimum sale price that is fixed by the government that are above equilibrium prices.
Can result in surpluses when supply is greater than the demand.
e. g. Wool floor price scheme
- demand wasn’t keeping up with supply
- caused wool stockpile
What are the effects of taxation on supply and demand curves?
Taxation = incr. costs = decr. supply = incr. price = decr. demand
Shifts supply curve left (or upward).
Explain what is meant by “the price elasticity of demand”
The % change in the quantity demanded of a good divided by % change in its price
It is essentially a measure of how sensitive the product is to changes in price affecting demand.
Important for:
> Projecting revenue
> It has an impact on taxation
> Has an impact on economic welfare
What are some factors that influence the elasticity of demand?
> The number of substitute goods/services
The proportion of a consumer’s income being spent on the good/service
The amount of time that has elapsed since the last change in price
Whether the good/service is a luxury or necessity
What is the result of an increase in price with elastic demand?
= larger percentage decrease in the quantity demanded
* total revenue and expenditure DECREASE
What is the result of an increase in price with inelastic demand?
= smaller percentage decrease in quantity demanded
* total revenue and expenditure INCREASE
What is ‘unit elasticity’?
A change in price has no effect on total revenue
What does an elastic demand curve look like?
A very shallow (close to horizontal) line, meaning that a shift in price (along Y axis) of one unit has a proportionally greater increase in quantity (X-axis). i.e. 1 unit price increase =»_space; 1 unit quantity increase.