Positive Externalities Policies Flashcards
What are subsidy
Subsidies or monetary payments given to firms by the government which allows the producers to boost production, allowing greater consumption of the good by society.
What is the method of subsidy
When a subsidy is given to producers, their cost of production falls . The producers will be more willing and able to produce the good which leads to an increase in supply such that the new market equilibrium is that socially optimal level of Q2, where MSC= MSB, were society’s welfare is maximised and allocative efficiency is achieved, solving market failure.
Draw the graphs for subsidy
State the size of subsidy
Deadweight loss
Shift of the supply curve
What is the graphical analysis for subsidy graph
- Seen in the graph above, subsidy will lead to an increase supply from S1 to S2
- Assuming that the size of subsidy is the marginal external benefit at Q2, socially optimal level. Consumers now consume the good at a lower price of P2 instead of P1.
- Therefore subsidy allows firms to internalise the external benefit and increase production to socially optimal level which will solve market failure.
Advantages of subsidy
Easy implementation and equity
How is subsidy easy to implement
Unlike Taxes which penalise users of the good to deter production and consumption of demerit goods, subsidies encourage greater usage of the good. The government will have little to no difficulties in implementing this policy face little resistance from citizens as the majority of them will benefit from subsidy.
How to subsidy lead to equity
Subsidies lower prices of the good as well as increased amount of good produced to socially optimal level this will make the good much more affordable and accessible to the poor majority, which will help government achieve its microeconomic goal of equity.
What are the limitations of subsidy
Budget, imperfect info and inefficiency
How is budget related to subsidy
Subsidy is financed by the government and this requires high amount of government expenditure, thus government budget position has to be healthy in order to implement subsidy.
If the government is facing budget deficit, they will have to increased taxation, borrow money or divert spending from other sectors to provide for this policy. But if the government borrows money this would increase government’s debt and burden will be borne by the future taxpayer via higher taxes. In addition there will also be opportunity cost when diverting funds from other measures towards providing for a subsidy, government must forego the benefit of spending funds on other sectors. And diverting funds will not be feasible if government is facing a more serious problem for example recession or epidemic.
How does imperfect info affect subsidy
Since it is difficult to measure the level of positive externalities, government failure in the form of in perfect info may occur. Government may not be able to accurately measure the marginal external benefit and will be unable to determine the right amount of subsidy and may over or under estimate the amount of subsidy.
Over estimating good result in too large of the subsidy which will lead to an even greater deadweight loss , resulting in the extent of market failure to be bigger, with more allocative inefficiency outcomes.
While underestimating subsidy may lead to insufficient subsidy to be provided does there was still be deadweight loss and market failure still occurring
Why does subsidy lead to inefficiency
Subsidy may breed inefficiency as firms COP is lowered, this may lead to them having higher profits that little improvement to the production process, leading to complacency
In addition , firms are less pressured to find more efficient/ lower cost of production methods, firms may also have little incentives to innovate and improve quality.
What is full provision
Full provision is a policy taken when the government has full control over the market. The government is directly involved and undertakes the entire production of the good, this allows them to not only lower prices but more importantly ensure production of the good is that socially optimal level.
What is the method for full provision
Government will determine that socially optimal level is at Q2 where MSB= MSC, that’s government will take full responsibility introducing the good at this level leading to the supply curve being perfectly price in elastic (totally unresponsive price) this allows government to ensure that the good is provided at socially optimal level.
Draw a graph for full provision
Ensure that the supply curve is perfectly price-inelastic
produce at Q2
What is the graphical analysis for full provision graph
- As seen in a graph above, government identifies the socially optimal level to be at Q2 where MSB the=MSC, and supply for the good will be perfectly price in elastic as seen in S1
- Hence the new market equilibrium will be at Q2 , socially optimal level, instead of previous market equilibrium of Q1.