VCAA Economics An introduction to microeconomics: the market system, resource allocation and government intervention

This is incorrect. One unit of beef is the opportunity cost of producing one unit of corn for Country A ($5000/5000 = 1$), not Country B.

This is incorrect. Two units of beef is the inverse of the correct calculation; it represents Country B's opportunity cost of producing one unit of beef ($4000/2000 = 2$ units of corn).

This is incorrect. Opportunity cost must be measured in terms of the alternative good given up, which in this case is beef, not corn.

This describes intertemporal or dynamic efficiency, which involves balancing current consumption with future investment, rather than allocative efficiency.

This describes productive efficiency, which occurs when goods are produced at the lowest possible average cost using the minimum amount of resources.

This describes dynamic efficiency, which involves innovation and the development of new production processes or products over time.

A decrease in the price of the good itself causes a movement along the existing demand curve (an increase in quantity demanded), rather than shifting the entire curve.

If a substitute becomes cheaper, consumers will switch to buying the substitute instead, which would decrease demand for the original good and shift its curve to the left.

A decrease in production costs affects producers, causing the supply curve to shift to the right, but it does not directly impact consumer demand.

Lowering interest rates reduces the cost of borrowing for mortgages, which increases demand for homes and drives up prices.

Easing lending restrictions allows more people to qualify for mortgages, increasing the pool of buyers and driving up housing demand and prices.

Allowing more immigration increases population growth, which directly increases the demand for housing and pushes prices up.

A shortage of farm workers increases production costs, which shifts the supply curve to the left rather than causing a movement along it.

A decrease in the price of fertiliser lowers production costs, which shifts the supply curve to the right instead of causing a movement along it.

Removing the excise tax on petrol lowers production costs for farmers, which shifts the supply curve to the right rather than causing a movement along it.

An increase in the price of labor increases, rather than decreases, production costs because firms must pay more to employ their workers.

While this option correctly identifies that production costs increase, higher costs reduce overall supply. A decrease in supply is represented by a shift of the SRAS curve to the left, not the right.

An increase in labor prices raises production costs, which decreases supply and shifts the SRAS curve to the left, making both parts of this statement incorrect.

A decrease in supply shifts the supply curve to the left, which causes the equilibrium price to increase, not decrease.

While the price does increase, the quantity demanded would only decrease by a relatively larger amount if the demand were relatively elastic, rather than inelastic.

A decrease in supply causes the price to increase, not decrease. Furthermore, inelastic demand means the quantity falls by a relatively smaller amount, not a larger one.

Incorrect. The supply of apples can be increased or decreased by planting more trees or changing farming practices, so its supply curve is upward-sloping rather than vertical.

Incorrect. Hairdressers can adjust the number of haircuts they provide by working more hours or hiring more staff, meaning the supply is not perfectly fixed.

Incorrect. Streaming services have a highly elastic supply because digital content can be provided to additional users at almost zero marginal cost.

The steepness or flatness of the supply curve determines the price elasticity of supply, which is entirely separate from consumer demand elasticity.

If a product takes up a smaller proportion of a consumer's income, its demand is typically less elastic (more inelastic) because price changes barely affect their overall budget.

Necessities have highly inelastic demand because consumers need them to survive or function and will continue buying them even if prices rise significantly.

An increase in demand shifts the demand curve and changes the equilibrium price, but it does not affect the producers' underlying ability to respond to price changes.

A decrease in price causes a movement along the supply curve to a lower quantity supplied, but it does not alter the elasticity of the supply curve itself.

Higher fertilizer costs shift the supply curve to the left by making production more expensive, but this does not increase the producers' responsiveness to price changes.

While higher taxes can lead to cost-push inflation (headline inflation), 'domestic-based inflation' is often associated with internal demand or wage pressures. Option D is the more direct and immediate microeconomic consequence of the tax.

Making fuel cars more expensive to run increases the demand for electric vehicles (a substitute), not the supply. The supply of electric cars is determined by manufacturing costs and technology, not the tax on fuel.

Australia no longer has a large-scale domestic car manufacturing industry. Therefore, a shift in demand toward electric vehicles would not significantly raise employment in local car manufacturing.

Incorrect. A fireworks display is a classic public good because it is non-excludable (anyone nearby can watch) and non-rivalrous (one person watching does not diminish another's view).

Incorrect. Street lighting is a public good because it is non-excludable and non-rivalrous; one person benefiting from the light does not prevent others from doing the same.

Incorrect. Free-to-air TV broadcasts are public goods because they are non-excludable (anyone with a receiver can watch) and non-rivalrous (one viewer does not weaken the signal for others).

While a subsidy might eventually lead to a lower market price, its primary definition and direct purpose is to reduce the costs of production for domestic producers, not directly to manipulate the market price.

Subsidies are typically provided to domestic producers to help them compete against foreign companies, not applied to imported goods to make imports cheaper.

A tax increases the cost of a good or service rather than reducing it. A subsidy is a financial payment or benefit, not a tax.

A shortage of labor affects the producers' ability to supply fruit, not the consumers' demand for it.

A shortage of fruit pickers means less fruit is harvested, which decreases supply rather than increasing it.

The shortage of workers impacts the supply side of the market, not the demand side.