Economics Chapter 15 Flashcards
The government sector
The government or public sector in South Africa consists of the following
1.Central government, which is concerned mainly with national issues such as defense and our relationship with
the rest of the world (i.e foreign affairs)
2.Regional (or provincial) government, which is concerned mainly with regional issues such as housing, health services and education
3.Local government, which deals with local issues such as the provision of sewerage, local roads, street lighting
and traffic control
4.Public corporations and other government business enterprises such as Eskom, Transnet and Rand Water
Explain the figure
The general departments (not business enterprises) of central, provincial and local government together form the general government. The general government plus the public corporations and other government enterprises form the public sector
What does the gov do?
Gov provides public goods and services to household and firms
Make transfer payments to households(SASSA) and firms(subsidies)
When is gov intervention justifiable
1) Government should not get involved in the production of goods and services that can be produced much more efficiently by the private sector
2)Second, it is generally accepted that free markets cannot function properly without government enforcement of
the rules under which private households and firms make contracts. Market economies cannot function without
well-defined property rights, the enforcement of contracts, and so on(law and order, national defense)
3)Third, cognizance should be taken of the fact that markets do not always produce efficient outcomes, government
intervention may be required in an attempt to correct market failure.
4)Fourth, market systems produce relatively efficient outcomes but they often do not produce equitable outcomes.
Market Failure
Occurs when a market is not able to provide a mechanism that allows for efficient allocation of resources
Allocative efficiency
Is efficient when it is impossible to reallocate the resources to make at least one person better off without making someone
else worse off, and that society’s welfare is maximised when the marginal cost of each product is equal to its price in the long run
Five cases of market failure:
1)Monopoly and imperfect competition
2)Public goods
3)Externalities
4)Asymmetric information
5)Common property resources
Monopoly and imperfect competition
What can be done?
Do nothing and hope large profits will attract competitors-price war
Impose price controls to prevent high prices-administrative issues
Tax the full excess profit of monopolists-incurred by consumers through higher prices
Regulate using competition policy
Natural monopolies
To a situation where the required capital expenditure or scale of production is so great that a single supplier can satisfy the demand in a particular region
Rivalrous
No two people can consume the same unit of a good(hot dog)
Non-rivalrous
Consumption by one person does not diminish consumption by others(national defence)
Excludable
Possible to prevent others from receiving benefits of a good or service once it is produced(buying chocolate)
Non-excludable
It is impossible to prevent others from consuming a good/service once it is produced(free riding)
Rivalry
Depends on nature of good/service
Excludability
Depends on circumstances/technology
Four quadrants to represent a different type of good or service
1)Goods and services that are both rivalrous in consumption and excludable. These are called normal goods/pure private goods preferably produced by the private sector
2)Goods that are rivalrous in consumption but non-excludable, common property resources, overused in the absence of the gov intervention
3)Goods that are excludable but non-rivalrous in consumption .Called mixed goods and can be produced by the private sector.Their efficient requires a zero price
4)Contains goods that are Non-rivalrous in consumption and non-excludable.Public goods. The non-production of
public goods is thus an example of market failure and, therefore, a justification for government intervention
Free riding
Arises when some or all consumers believe that the product will be provided anyway, whether or not they pay for it
What are the broad implications of this classification for the role of government in the economy?
1)The production of private (rival and excludable) goods should be left to the market. Private firms can produce and sell these goods. If the firms are price takers, they will also fulfill the condition for allocative efficiency by operating where marginal cost us equal to price
2)Private firms will not provide public goods because they are non-excludable .The provision of public(non-rivalrous and non-excludable)goods is thus ultimately the responsibility of gov, we refer to provision of public goods and not the production of public goods by the gov
3)(excludable but non-rivalrous) goods can be provided by private firms.
4)Common property resources are dealt with separately below(merit goods)
Externalities
Externalities are costs or benefits of a transaction or activity that are borne or enjoyed by parties not directly
involved in the transaction or activity
External costs of production
External costs-negative externalities
MSC>MPC
Welfare is not maximized as MSC>P-inefficient allocation of resources
Possible solutions :Coase theorem ,tax pollution, limit production, install anti-pollution equipment
External benefits of production
External benefits-positive externalities
MSC<MPC
Underproduction therefore government ought to subsidize
resulting in a socially inefficient allocation of resources. Governments therefore often intervene by subsidizing activities that are subject to external benefits
Coase Theorem
This theorem, however, supposes that the parties can bargain effectively and that there are no
transaction costs associated with the bargaining process
Levying a tax
One possibility is to levy a tax on those causing the external
costs. If such a tax is equal to the difference between the marginal social cost (MSC) and the marginal private cost
(MPC), the socially efficient level of production will be achieved. By levying such a tax, the government tries to internalise the externality by increasing the industry’s private cost by the amount of the external cost
Further possibilities
External costs result in a socially inefficient allocation of resources
Governments should try to improve the situation
All potential solutions are subject to serious practical problems
Asymmetric information
Not all economic agents have perfect knowledge of market conditions-leads to asymmetric information. Leads to principal-agent problem. Inefficient allocation of resources .
Possible gov solutions
Provide information, require full disclosure ,establish code of conduct, impose standards etc.
Common property resources
Common property resources are those that are non-excludable but rivalrous in consumption. Instead, common resources tend to be overexploited, even to the extent of destruction. This is often referred to as the tragedy of the commons.
Further reasons for government intervention in the economy
Income distribution
Macroeconomic growth and stability
Merit goods
Income distribution
The free market tends to generate an unequal distribution of income. To affect/effect income distribution through progressive income taxes free or subsidized provision of certain goods and services for certain people/cash transfer payments to those in need/legislation
Macroeconomic growth and stability
A number of economists argue that the free market system tends to fall short of achieving important macroeconomic
objectives such as rapid economic growth, full employment and price stability and that governments have to intervene in an attempt to achieve these objectives through fiscal and monetary policy
Merit goods
Goods regarded as so beneficial to society that everyone should be in position to consume(excludable ,but social beneficial) independently from or to supplement the private sector
The role of government in the economy can be summarized by distinguishing between three broad functions of government:
Allocative function: Correcting market failure and achieving a more efficient allocation of resources
Distributive function :Steps taken by the gov to achieve a more equitable/socially acceptable distribution of income
Stabilization function: Measures taken by gov to promote macroeconomic stability
How does the government intervene?
Public provision
Market participant
Government spending
Taxation
Regulation
Public provision
Public provision of goods and services (eg of public goods such as national defense, the justice system and infrastructure). This can be achieved by public ownership or public financing production undertaken by the private sector