Which of the following is an example of a positive externality in the market?

Economists use the term externality to describe any time the price determined by a market doesn't reflect the true cost of an action. A positive externality is a good consequence that isn't taken into account.

An externality is an effect that an economic transaction has on a party who is not involved in the transaction.

Externalities deter a market from producing the equilibrium quantity and price for a good for service. Externalities produce inefficiencies in markets and can eventually produce a market failure if not internalized in time.

Positive Externality

A positive externality is something that enhances society as a whole. It results from an economic transaction that has positive external effects on others not party to the transaction.

One example of a positive externality is the market for education. The more education a person receives, the greater the social benefit since more educated people tend to be more enterprising, meaning they bring greater economic value to their community.

Figure 1. The effect of higher education on society.

The social benefit (SD) of obtaining higher education is greater than that of the private benefit (D). Because individuals do not factor in the social benefit, they are only interested in the private benefit and therefore they purchase a level of education which is not socially optimal.

• At Point A the level of education is below the socially desirably level and confers only a private benefit to the person.
• The red triangle #1 & #2 represent the deadweight loss that results from this decision not to obtain a socially desirable educational level.
• At Point B the level of eduction increases as does the cost.
• The increase in education creates a benefit beyond just the private benefit to the person, this is called the external marginal benefit (EMB).
• The EMB is the amount of benefit that is conferred to society as a result of the higher level of education.
• The red triangle #1 represents the deadweight loss that results from this decision to obtain a socially desirable educational level. It is only half the amount from before.
• This deadweight loss exists because in a perfect market, every person would obtain the exact level of education that they need but because this is almost impossible to do it is better to have everyone over-educated.

To increase the level of education, the government could offer an education subsidy which would lower the cost of education and encourage more people to obtain a higher level of education. This would close the gap between P1 and P2 and increase the output of higher education. Therefore the individuals could pay the same price before (accompanied by a subsidy) and the overall level of education would increase and maximize the social benefit.

Externalities occur in an economy when the production or consumption of a specific good or service impacts a third party that is not directly related to the production or consumption of that good or service.

Almost all externalities are considered to be technical externalities. Technical externalities have an impact on the consumption and production opportunities of unrelated third parties, but the price of consumption does not include the externalities. This exclusion creates a gap between the gain or loss of private individuals and the aggregate gain or loss of society as a whole.

The action of an individual or organization often results in positive private gains but detracts from the overall economy. Many economists consider technical externalities to be market deficiencies, and this is the reason people advocate for government intervention to curb negative externalities through taxation and regulation.

Externalities were once the responsibility of local governments and those affected by them. So, for instance, municipalities were responsible for paying for the effects of pollution from a factory in the area while the residents were responsible for their healthcare costs as a result of the pollution. After the late 1990s, governments enacted legislation imposing the cost of externalities on the producer.

Many corporations pass the cost of externalities on to the consumer by making their goods and services more expensive.

Types of Externalities

Externalities can be broken into two different categories. First, externalities can be measured as good or bad as the side effects may enhance or be detrimental to an external party. These are referred to as positive or negative externalities. Second, externalities can be defined by how they are created. Most often, these are defined as a production or consumption externality.

Negative Externalities

Most externalities are negative. Pollution is a well-known negative externality. A corporation may decide to cut costs and increase profits by implementing new operations that are more harmful to the environment. The corporation realizes costs in the form of expanding operations but also generates returns that are higher than the costs.

However, the externality also increases the aggregate cost to the economy and society making it a negative externality. Externalities are negative when the social costs outweigh the private costs.

Positive Externalities

Some externalities are positive. Positive externalities occur when there is a positive gain on both the private level and social level. Research and development (R&D) conducted by a company can be a positive externality. R&D increases the private profits of a company but also has the added benefit of increasing the general level of knowledge within a society.

Similarly, the emphasis on education is also a positive externality. Investment in education leads to a smarter and more intelligent workforce. Companies benefit from hiring employees who are educated because they are knowledgeable. This benefits employers because a better-educated workforce requires less investment in employee training and development costs.

Production Externalities

A production externality is an instance where an industrial operation has a side effect. This is often the type of externality used as example, as it is easy to envision an environmental catastrophe caused by improperly stored chemicals by a chemical company. Because of how the company produced its goods or protected its waste, an externality occurred.

Consumption Externalities

Externalities may also occur based on when or how a consumer base utilizes resources. Consider the example of how you get to work. Those who choose to drive are creating a pollution externality by driving their own car. Those who choose to take public transit or walk are not causing the same externality. Instead of a side effect occurring because something is being produced, an externality is caused because of an item being consumed.

These four types of externalities above are often combined to define a single externality. For example, an externality may be a positive production, negative production, positive consumption, or negative consumption externality.

Externality Solutions

There are solutions that exist to overcome the negative effects of externalities. These can include those from both the public and private sectors.

Taxes

Taxes are one solution to overcoming externalities. To help reduce the negative effects of certain externalities such as pollution, governments can impose a tax on the goods causing the externalities. The tax, called a Pigovian tax—named after economist Arthur C. Pigou—is considered to be equal to the value of the negative externality.

This tax is meant to discourage activities that impose a net cost to an unrelated third party. That means that the imposition of this type of tax will reduce the market outcome of the externality to an amount that is considered efficient.

Subsidies

Subsidies can also overcome negative externalities by encouraging the consumption of a positive externality. One example would be to subsidize orchards that plant fruit trees to provide positive externalities to beekeepers.

This nudge has the potential to influence behavioral economics, as additional incentives one way or another way dictate the choices that are made. The subsidy is often placed on an opposing item to detract from a specific activity as well. For example, government incentives to upgrade to more energy-efficient renovations subtly discourages consumers against options with more externalities.

Other Government Regulation

Governments can also implement regulations to offset the effects of externalities. Regulation is considered the most common solution. The public often turns to governments to pass and enact legislation and regulation to curb the negative effects of externalities. Several examples include environmental regulations or health-related legislation.

The primary issue with government regulation of externalities is the need for consistent and reliable information to track the externality is being managed or overcome. Consider regulation against pollution. The government put forth resources to ensure that the legislation put in place is actually being followed, including holding bad actors accountable for not properly addressing their externality.

Real-World Examples of Externalities

Many countries around the world enact carbon credits that may be purchased to offset emissions. These carbon credit prices are market-based that may often fluctuate in cost depending on the demand of these credits to other market participants.

One program within the United States is the Regional Greenhouse Gas Initiative (RGGI). The RGGI is made up of 12 states: California and 11 Northeast states. RGGI is a mandatory cap-and-trade program that limits carbon dioxide emissions from the power sector.

Different agencies are imposed a cap on externalities, though they can trade resources to change what their cap is. Agencies that struggle managing their externality (i.e. pollution) may need to purchase additional credits to have their cap increased. Other agencies that conquer their externality may sell part of their cap space to recover capital likely used to overcome their externalities.

How Do Externalities Affect the Economy?

Externalities may positively or negatively affect the economy, although it is usually the latter. Externalities create situations where public policy or government intervention is needed to detract resources from one area to address the cost or exposure of another. Consider the example of an oil spill; instead of those funds going to support innovation, public programs, or economic development, resources may be inefficiently put towards fixing negative externalities.

What Is the Most Common Type of Externality?

Most externalities are negative, as the production process often entails byproducts, waste, and other consequential outcomes that do not have further benefits. This may be pollution, garbage, or negative implications for worker health. Many externalities are also related to the environment, as the mechanical nature of manufacturing and product distribution has many detrimental impacts on the environment.

How Can You Identify an Externality?

Companies must be mindful of their entire production process when assessing production externalities. This includes not only implications of the final product but residual impacts of byproducts, disposal of items not used, and how antiquated equipment is handled. This also includes projecting outcomes of items yet to occur, such as waste yet to be properly disposed of.

Consumers can identify consumption externalities by being mindful of the inputs and outputs that go beyond what they are attempting to achieve. Consider an example of an individual consuming alcohol. A consumer must be mindful that excessive drinking may lead to noise pollution, an unsafe environment, or adverse health effects.

How Do Economists Measure Externalities?

Economists use two measures to evaluate an externality. First, economists use a cost-of-damages approach to evaluate what the expense would be to rectify the externality. As we may be seeing with greenhouse gas emissions, some externalities may extend beyond the point of repair.

Another method of measuring externalities is the cost of control method. Instead of fixing the externality, economists measure what preemptive and preventative steps can be taken to stop the externality from occurring. Similar to how an actuary assesses a financial value to an event, economists may assign multiple financial measurements to an externality.

The Bottom Line

An externality is a byproduct of a primary process. This side effect may be good or bad and may be caused by a production process or consumption process. Many externalities relate to the environment due to the nature of company and individual actions, though there are many ways governments, companies, and people can take responsibility to both prevent and rectify externalities.

What is an example of positive externality?

Which of the following is an example of a positive externality quizlet?

What is a positive externality?

When there is a positive externality in the market quizlet?