Greta Jimenez
Pollution is an external cost in economics, where one or more individuals suffer a loss of welfare. It is a negative externality, where the market fails to consider all social costs, and the private market fails to achieve efficient output. Pollution is caused by economic production and rapid economic growth, and it undermines sustainable economic growth, exacerbates poverty and inequality, and significantly contributes to climate change. It also has widespread consequences on human and environmental health, causing fatal illnesses and creating harmful living conditions. Economists use demand and supply diagrams to illustrate the social costs of production, which include the private costs of production incurred by the company and the external costs of pollution passed on to society.
| Characteristics | Values |
|---|---|
| Definition | Pollution is an "external cost and occurs only when one or more individuals suffer a loss of welfare" |
| Negative externality | Pollution is a classic example of a negative externality, where the market will generate too much pollution if left unchecked. |
| Social costs | The social costs of pollution include the private costs of production incurred by the company and the external costs passed on to society. |
| Marginal costs | The marginal social cost of producing one more unit of a product is the sum of the marginal private cost and the marginal external cost of pollution. |
| Marginal benefits | Marginal social benefit refers to the additional benefit society derives from an additional quantity of pollution. |
| Optimal level | There is a socially optimal level of pollution where welfare is maximized, and the marginal cost of pollution equals the marginal benefit of consuming one more unit of the good or service. |
| Economic growth | Pollution undermines sustainable economic growth and exacerbates poverty and inequality. |
| Health risks | Pollution poses serious health risks, contributing to fatal illnesses, harmful living conditions, and ecosystem destruction. |
| Environmental impact | Pollution leads to high levels of air and water pollution, hazardous waste, destruction of wildlife habitats, and climate change. |
| Regulatory efforts | Many nations have enacted legislation to regulate and mitigate pollution, with support from organizations like the World Bank Group. |
Explore related products
What You'll Learn
Pollution is a negative externality
Economics is concerned with the trade-off between costs and benefits. Pollution is an example of an external cost, or negative externality, where the social costs of production are not reflected in the market price. This is because the social costs include not only the private costs of production incurred by the company but also the external costs of pollution that are passed on to society.
When a factory emits pollution into the air or a river, it does not bear the cost of that pollution. This is because the factory only considers the private marginal cost of producing one more unit of the product, such as using more energy, materials, and workers. It does not take into account the marginal external cost of dumping wastewater into the river, for example, which would cause harm to people living downstream and those who use the river.
As a result, when left unchecked, the market will generate too much pollution. Economists refer to this as market failure, where the private market fails to achieve efficient output because firms do not account for all costs incurred in the production of output. For instance, if firms were required to pay the social costs of pollution, they would create less pollution but produce less of the product and charge a higher price.
There is a socially optimal level of pollution where welfare is maximized. Consumers derive utility from the good or service manufactured, which outweighs the social cost of pollution until a certain point. At this point, the damage of one extra unit of pollution to society, the marginal cost of pollution, is exactly equal to the marginal benefit of consuming one more unit of the good or service.
Pollution has widespread consequences for human and environmental health, causing fatal illnesses, creating harmful living conditions, and destroying ecosystems. It also undermines sustainable economic growth, exacerbates poverty and inequality, and contributes to climate change. Therefore, addressing pollution from its sources presents an opportunity to enhance economic growth, improve resource efficiency, and create employment opportunities.
Commercial Buildings: Energy, Emissions, and Environmental Impact
You may want to see also
Explore related products
![Environmental pollution control alternatives : economics of wastewater treatment alternatives for the electroplating industry. 1979 [Leather Bound]](https://m.media-amazon.com/images/I/61IX47b4r9L._AC_UY218_.jpg)
Marginal social cost vs marginal social benefit
Pollution is a negative externality that poses serious health risks for people and ecosystems, particularly in low- and middle-income countries. It is the largest environmental cause of disease and premature death, causing several times more deaths than AIDS, tuberculosis, and malaria combined. Air pollution alone kills roughly 5.7 million people globally each year, with economic costs equivalent to nearly 5% of global GDP.
In the context of environmental protection, the decision of production quantity becomes socially important as the marginal social benefits or costs are spread across all members of society. Marginal social benefit is the satisfaction experienced by consumers of a specific good plus or minus the overall environmental and social costs or benefits. For instance, if negative externalities of consumption such as pollution are created, the marginal social benefits will be less than the marginal private benefits. Marginal benefit is the change in benefits resulting from the consumption of one additional unit of a good or service.
Marginal social cost is the total cost to society as a whole for producing one additional unit or taking one additional action in an economy. It includes both fixed and variable costs. Fixed costs do not fluctuate, such as salaries or startup costs, while variable costs change, such as costs based on production volume. When determining the marginal social cost, both types of costs must be considered.
The concept of marginal social benefit and marginal social cost is essential in economics as it helps determine the pricing, production, and consumption of a good or service. For efficient consumption of a public resource, the marginal social benefit must be equal to its marginal social cost. Policymakers can analyze the impact of an industry on society by comparing the marginal social benefit with the marginal social cost of producing an extra unit. If the social costs are higher than the benefits, policies may be implemented to encourage companies to adopt more socially efficient operations. For example, a tax on industries polluting the environment equivalent to the damage done would incentivize them to choose a more cost-effective production method.
China's Pollution Battle: Strategies and Successes
You may want to see also
Explore related products
Pollution as a market failure
Economics is concerned with the trade-off between costs and benefits. Pollution is an example of an external cost, or externality, where a third party who is not part of an exchange suffers a loss of welfare. This can be contrasted with internal costs, which are borne by the buyer or seller. Externalities can be positive or negative, but pollution is a classic example of a negative externality, with serious impacts on human health and the environment.
When a factory emits pollution into the air or a river, it does not have to bear the cost of that pollution. This is because the factory only considers the private marginal cost of producing one more unit of the product, such as using more energy, materials, and workers. It does not consider the marginal external cost of dumping wastewater into the river, for example, which would cause harm to people living downstream and those who use the river. This is an example of market failure, where the private market fails to achieve efficient output because firms do not account for all the costs incurred in the production of output.
The social costs of production include both the private costs of production incurred by the company and the external costs of pollution that are passed on to society. These external costs include the health effects on individuals and the destruction of ecosystems. For instance, outdoor air pollution alone kills roughly 5.7 million people globally each year, with economic costs equivalent to nearly 5% of global GDP. Similarly, exposure to harmful chemicals such as lead has been linked to millions of deaths from cardiovascular disease, with particularly devastating effects on children's IQ in lower- and middle-income countries.
To address these issues, governments are pushing for responsible economic growth that achieves a socially optimal pollution quantity within manageable social costs. This involves requiring firms to take the social costs of pollution into account, which would incentivize them to reduce the production of whatever is causing negative externalities. Various anti-pollution policies have been effective in reducing emissions, such as in the United States, where certain air pollutants declined substantially from 2007 to 2012. Additionally, the World Bank Group supports developing countries in reducing pollution, promoting clean development, and fostering a more circular economy.
Trump's Pollution Control Rollback: What's the Real Impact?
You may want to see also
Explore related products
Pollution's impact on human health
Economics is concerned with the trade-off between costs and benefits. Pollution is considered an external cost in economics, where individuals or society at large suffer a loss of welfare. It is a negative externality, where the market fails to consider all social costs, and firms do not account for all the costs incurred in the production output. As a result, pollution is left unchecked, and there is an overproduction of pollutants.
Pollution has a detrimental impact on human health, causing debilitating and fatal illnesses and creating harmful living conditions. Outdoor air pollution alone kills roughly 5.7 million people globally each year, with economic costs equivalent to nearly 5% of global GDP. Air pollution is the leading environmental risk to health, causing 7 million premature deaths each year. More than 90% of these deaths occur in low- and middle-income countries.
In addition to air pollution, water pollution, hazardous waste, and plastic pollution also have severe health impacts. Plastic waste, for example, can exist for hundreds or thousands of years, and if left unchecked, will eventually outweigh fish in the oceans. This will have a devastating impact on marine life and human health, as humans consume marine life as a source of food.
Pollution by hazardous chemicals such as lead has also been linked to cardiovascular disease, with more than 5.5 million adults dying from this in 2019. Furthermore, children under five years of age lost 765 million IQ points, averaging a loss of nearly 5.9 IQ points per child in LMICs.
Overall, pollution is the largest environmental cause of disease and premature death, with several times more deaths attributed to it than from AIDS, tuberculosis, and malaria combined. It is a significant burden on economies, impacting health, productivity, and life expectancy.
The World's Pollution Crisis: A Global Concern
You may want to see also
Explore related products
Pollution and economic growth
Economics is all about the trade-off between costs and benefits. Pollution is an external cost, so if it is not considered by economic actors, the free market will produce too much of it. Pollution occurs when one or more individuals suffer a loss of welfare. It is a negative externality, and economists illustrate the social costs of production with a demand and supply diagram. The social costs include the private costs of production incurred by the company and the external costs of pollution that are passed on to society.
The supply curve is based on choices about production that firms make while looking at their marginal costs, while the demand curve is based on the benefits that individuals perceive while maximizing utility. If no externalities existed, private costs and benefits would be the same as the costs and benefits to society as a whole. However, when the externality of pollution exists, the supply curve no longer represents all social costs. Because externalities represent a case where markets no longer consider all social costs, but only some of them, economists commonly refer to externalities as an example of market failure.
The socially optimal quantity of pollution is the quantity of pollution that society would choose when all costs and benefits are taken into consideration. It is the quantity where the marginal social cost of pollution equals the marginal social benefit of pollution. For example, a factory producing jeans creates water pollution by dumping wastewater into a river. The water pollution is an external cost that the factory does not consider. If firms were required to pay the social costs of pollution, they would create less pollution but produce less of the product and charge a higher price.
Pollution undermines sustainable economic growth, exacerbates poverty and inequality, and significantly contributes to climate change. It is the largest environmental cause of disease and premature death. Global pollution is rising due to rapid economic growth, population increases, and insufficient environmental management. However, addressing pollution from its sources presents an opportunity to enhance economic growth, improve resource efficiency, and create employment opportunities. Pollution management offers no-regrets options that can alleviate poverty, boost shared prosperity, and deliver healthier and more productive lives for millions of people.
Ocean Pollution: Understanding Oil's Devastating Impact
You may want to see also
Frequently asked questions
Economics is about the trade-off between costs and benefits. Pollution is an external cost, meaning it is a cost that is not considered by the buyer or seller in an exchange. If left unchecked, a free market will produce too much pollution.
Externalities can be negative or positive. A negative externality is when an exchange between a buyer and seller negatively impacts a third party who is not part of the exchange. Pollution is a negative externality.
The socially optimal quantity of pollution is the quantity where the marginal social cost of pollution equals the marginal social benefit of pollution. This is the quantity of pollution that society would choose when all costs and benefits are taken into consideration.
Pollution undermines sustainable economic growth, exacerbates poverty and inequality, and contributes to climate change. It also poses serious health risks, particularly in low- and middle-income countries. Pollution also affects economic growth through its impact on health, productivity, and life expectancy.
Governments can require firms to take the social costs of pollution into account, which would incentivize them to reduce production of polluting goods and services. Additionally, addressing pollution from its sources can enhance economic growth, improve resource efficiency, and create employment opportunities.
