Common good (economics)

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Wild fish are an example of common goods. They are non-excludable, as it is impossible to prevent people from catching fish. They are, however, rivalrous, as the same fish cannot be caught more than once. Man fishing from the banks of a lake in Burkina Faso, 2009.jpg
Wild fish are an example of common goods. They are non-excludable, as it is impossible to prevent people from catching fish. They are, however, rivalrous, as the same fish cannot be caught more than once.

Common goods (also called common-pool resources [1] ) are defined in economics as goods that are rivalrous and non-excludable. Thus, they constitute one of the four main types based on the criteria:

Contents

As common goods are accessible by everybody, they are at risk of being subject to overexploitation which leads to diminished availability if people act to serve their own self-interests.

History

Despite its growing importance in modern society, the concept of the common good was first mentioned more than two thousand years ago in the writings of Plato, Aristotle, and Cicero. Regardless the time period Aristotle described the problem with common goods accurately: “What is common to many is taken least care of, for all men have greater regard for what is their own than for what they possess in common with others.” [1]

Examples

Congested roads - Roads may be considered either public or common resources. Road is public good whenever there is no congestion, thus the use of the road does not affect the use of someone else. However, if the road is congested, one more person driving the car makes the road more crowded which causes slower passage. In other words, it creates a negative externality and road becomes common good. [1]

Clean water and air - Climate stability belongs to classic modern examples. [2] Water and air pollution is caused by market negative externality. Water flows can be tapped beyond sustainability, and air is often used in combustion, whether by motor vehicles, smokers, factories, wood fires. In the production process these resources and others are changed into finished products such as food, shoes, toys, furniture, cars, houses and televisions.

Fish stocks in international waters - Oceans remain one of the least regulated common resources. [1] When fish are withdrawn from the water without any limits being imposed just because of their commercial value, living stocks of fish are likely to be depleted for any later fishermen. This phenomenon is caused by no incentives to let fish for others. To describe situations in which economic users withdraw resources to secure short-term gains without regard for the long-term consequences, the term tragedy of the commons was coined. For example, forest exploitation leads to barren lands, and overfishing leads to a reduction of overall fish stocks, both of which eventually result in diminishing yields to be withdrawn periodically.

Other natural resources - Another example of a private exploitation treated as a renewable resource and commonly cited have been trees or timber at critical stages, oil, mined metals, crops, or freely accessible grazing.

Debates about sustainability can be both philosophical and scientific. [3] [4] [5] However, wise-use advocates consider common goods that are an exploitable form of a renewable resource, such as fish stocks, grazing land, etc., to be sustainable in the following two cases:

Tragedy of the commons

Tragedy of commons is a problem in economics in which everybody has an incentive to use a resource at the expense of everyone else who uses it, with no way of preventing anyone from consuming it. Generally, the resource in question is without barriers to entry and is demanded in excess of its supply, leading to depletion of the resource.

The tragedy of the commons was originally mentioned in 1833 by the Victorian economist William Forster Lloyd, who was a member of the Royal Society . He offered the example of a hypothetical tract of shared grazing land, in which all of the villagers brought their cows to this common grazing space, resulting in overgrazing and the depletion of the resource(Lloyd, 1833). Individuals may theoretically limit their use in order to avoid depleting a shared resource, if they so chose. However, there is a problem with free riders. In situations where people rely on others to reduce their productivity. The result of everyone taking advantage of the system and making the most of it is a scenario of over-consumption.

Example

For example, imagine there are several shepherds, each with their own flock of sheep, who have access to a communal field which they all use for grazing. As the sheep graze unhindered, they deplete the overall stock of grass in the field and there is less for other sheep to consume. The tragedy is that eventually the field will become barren and will be no use to any of the shepherds. [1] [6]

Possible solutions

Assigning property rights is one possible solution to the problem. This involves essentially converting what was a common-pool resource into a private good. This would prevent that over-consumption of the good as the owner(s) of the good would have an incentive to regulate their consumption in order to keep the stock of that good at a healthy level.

Next solution is government intervention. Right to use the land can be allocated, the number of sheep in every herd can be regulated or externality made by sheep can be internalized by taxing sheep. [1]

Collective solutions can also be reached to solve the problem. Before English enclosure laws were enacted, there were agreements in place between lords and rural villagers to overcome this problem. Practices such as seasonal grazing and crop rotation regulated land use. Over-using the land resulted in enforceable sanctions. [7]

Common goods and normal goods

Normal goods are goods that experience an increase in demand as the income of consumers increases. The demand function of a normal good is downward sloping, which means there is an inverse relationship between the price and quantity demanded. [8] In other words, price elasticity of demand is negative for normal goods. Common goods mean that demand and price change in the opposite direction. If something is a normal goods, then the consumer's demand for the goods and the consumer's income level change in the same direction. At this time, the substitution effect and income effect will strengthen each other, so the price change will lead to the opposite direction of demand change. Then the goods must be a common goods, so the normal goods must be a common goods.

Other goods

Excludable Non-excludable
Rivalrous Private goods
eg. food, clothing, parking spaces
Common-pool resources
eg. fish stocks, timber
Non-rivalrous Club goods
eg. cinemas, software, private parks
Public goods
eg. free-to-air television, air, national defense

In addition to common goods, there are three other kinds of economic goods, including public goods, private goods, and club goods. Common goods that a businessman gives a thumbs up can include international fish stocks and other goods. Most international fishing areas have no limit on the number of fish that can be caught. Therefore, anyone can fish as he likes, which makes the good things not excluded. However, if there are no restrictions, fish stocks may be depleted when other fishermen arrive later. This means that fish populations are competitive. Other common commodities include water and game animals.

See also

Related Research Articles

<span class="mw-page-title-main">Natural resource</span> Resources that exist without actions of humankind.

Natural resources are resources that are drawn from nature and used with few modifications. This includes the sources of valued characteristics such as commercial and industrial use, aesthetic value, scientific interest, and cultural value. On Earth, it includes sunlight, atmosphere, water, land, all minerals along with all vegetation, and wildlife.

<span class="mw-page-title-main">Tragedy of the commons</span> Self-interests causing depletion of a shared resource

The tragedy of the commons is a concept which states that if many people enjoy unfettered access to a finite, valuable resource, such as a pasture, they will tend to overuse it and may end up destroying its value altogether. Even if some users exercised voluntary restraint, the other users would merely replace them, the predictable result being a "tragedy" for all. The concept has been widely discussed, and criticised, in economics, ecology and other sciences.

<span class="mw-page-title-main">Externality</span> In economics, an imposed cost or benefit

In economics, an externality or external cost is an indirect cost or benefit to an uninvolved third party that arises as an effect of another party's activity. Externalities can be considered as unpriced components that are involved in either consumer or producer market transactions. Air pollution from motor vehicles is one example. The cost of air pollution to society is not paid by either the producers or users of motorized transport to the rest of society. Water pollution from mills and factories is another example. All (water) consumers are made worse off by pollution but are not compensated by the market for this damage. A positive externality is when an individual's consumption in a market increases the well-being of others, but the individual does not charge the third party for the benefit. The third party is essentially getting a free product. An example of this might be the apartment above a bakery receiving some free heat in winter. The people who live in the apartment do not compensate the bakery for this benefit.

<span class="mw-page-title-main">Resource depletion</span> Depletion of natural organic and inorganic resources

Resource depletion is the consumption of a resource faster than it can be replenished. Natural resources are commonly divided between renewable resources and non-renewable resources. The use of either of these forms of resources beyond their rate of replacement is considered to be resource depletion. The value of a resource is a direct result of its availability in nature and the cost of extracting the resource. The more a resource is depleted the more the value of the resource increases. There are several types of resource depletion, including but not limited to: mining for fossil fuels and minerals, deforestation, pollution or contamination of resources, wetland and ecosystem degradation, soil erosion, overconsumption, aquifer depletion, and the excessive or unnecessary use of resources. Resource depletion is most commonly used in reference to farming, fishing, mining, water usage, and the consumption of fossil fuels. Depletion of wildlife populations is called defaunation.

Community management or common-pool resource management is the management of a common resource or issue by a community through the collective action of volunteers and stakeholders. The resource managed can be either material or informational. Examples include the management of common grazing and water rights, fisheries, and open-source software. In the case of physical resources, community management strategies are frequently employed to avoid the tragedy of the commons and to encourage sustainability.

<span class="mw-page-title-main">Overfishing</span> Removal of a species of fish from water at a rate that the species cannot replenish

Overfishing is the removal of a species of fish from a body of water at a rate greater than that the species can replenish its population naturally, resulting in the species becoming increasingly underpopulated in that area. Overfishing can occur in water bodies of any sizes, such as ponds, wetlands, rivers, lakes or oceans, and can result in resource depletion, reduced biological growth rates and low biomass levels. Sustained overfishing can lead to critical depensation, where the fish population is no longer able to sustain itself. Some forms of overfishing, such as the overfishing of sharks, has led to the upset of entire marine ecosystems. Types of overfishing include growth overfishing, recruitment overfishing, and ecosystem overfishing.

<span class="mw-page-title-main">Goods</span> Tangible or intangible things that satisfy human wants and can be transferred

In economics, goods are items that satisfy human wants and provide utility, for example, to a consumer making a purchase of a satisfying product. A common distinction is made between goods which are transferable, and services, which are not transferable.

Eco-capitalism, also known as environmental capitalism or (sometimes) green capitalism, is the view that capital exists in nature as "natural capital" on which all wealth depends. Therefore, governments should use market-based policy-instruments to resolve environmental problems.

<span class="mw-page-title-main">Pastoralism</span> Branch of agriculture concerned with raising livestock

Pastoralism is a form of animal husbandry where domesticated animals are released onto large vegetated outdoor lands (pastures) for grazing, historically by nomadic people who moved around with their herds. The animal species involved include cattle, camels, goats, yaks, llamas, reindeer, horses, and sheep.

<span class="mw-page-title-main">Commons</span> Shared resources

The commons is the cultural and natural resources accessible to all members of a society, including natural materials such as air, water, and a habitable Earth. These resources are held in common even when owned privately or publicly. Commons can also be understood as natural resources that groups of people manage for individual and collective benefit. Characteristically, this involves a variety of informal norms and values employed for a governance mechanism. Commons can also be defined as a social practice of governing a resource not by state or market but by a community of users that self-governs the resource through institutions that it creates.

In economics, a common-pool resource (CPR) is a type of good consisting of a natural or human-made resource system, whose size or characteristics makes it costly, but not impossible, to exclude potential beneficiaries from obtaining benefits from its use. Unlike pure public goods, common pool resources face problems of congestion or overuse, because they are subtractable. A common-pool resource typically consists of a core resource, which defines the stock variable, while providing a limited quantity of extractable fringe units, which defines the flow variable. While the core resource is to be protected or nurtured in order to allow for its continuous exploitation, the fringe units can be harvested or consumed.

<span class="mw-page-title-main">Excludability</span> Degree to which consumption of a good can be restricted

In economics, excludability is the degree to which a good, service or resource can be limited to only paying customers, or conversely, the degree to which a supplier, producer or other managing body can prevent consumption of a good. In economics, a good, service or resource is broadly assigned two fundamental characteristics; a degree of excludability and a degree of rivalry.

<span class="mw-page-title-main">Lifeboat ethics</span> Metaphor for resource distribution proposed by Garrett Hardin

Lifeboat ethics is a metaphor for resource distribution proposed by the ecologist Garrett Hardin in two articles published in 1974, building on his earlier 1968 article detailing "The tragedy of the commons". Hardin's 1974 metaphor describes a lifeboat bearing fifty people with room for ten more. The lifeboat is in an ocean surrounded by a hundred swimmers. The ethics of the situation stem from the dilemma of whether swimmers should be taken aboard the lifeboat.

Global commons is a term typically used to describe international, supranational, and global resource domains in which common-pool resources are found. Global commons include the earth's shared natural resources, such as the high oceans, the atmosphere and outer space and the Antarctic in particular. Cyberspace may also meet the definition of a global commons.

Individual fishing quotas (IFQs), also known as "individual transferable quotas" (ITQs), are one kind of catch share, a means by which many governments regulate fishing. The regulator sets a species-specific total allowable catch (TAC), typically by weight and for a given time period. A dedicated portion of the TAC, called quota shares, is then allocated to individuals. Quotas can typically be bought, sold and leased, a feature called transferability. As of 2008, 148 major fisheries around the world had adopted some variant of this approach, along with approximately 100 smaller fisheries in individual countries. Approximately 10% of the marine harvest was managed by ITQs as of 2008. The first countries to adopt individual fishing quotas were the Netherlands, Iceland and Canada in the late 1970s, and the most recent is the United States Scallop General Category IFQ Program in 2010. The first country to adopt individual transferable quotas as a national policy was New Zealand in 1986.

In psychology, a social trap is a conflict of interest or perverse incentive where individuals or a group of people act to obtain short-term individual gains, which in the long run leads to a loss for the group as a whole. Social traps are the cause of countless environmental issues, including overfishing, energy "brownout" and "blackout" power outages during periods of extreme temperatures, the overgrazing of cattle on the Sahelian Desert, the destruction of the rainforest by logging interests and agriculture, and, most importantly, climate change.

The Commonize Costs–Privatize Profits Game is a concept developed by the ecologist Garrett Hardin to describe a "game" widely played in matters of resource allocation. The concept is Hardin's interpretation of the closely related phenomenon known as the tragedy of the commons, and is referred to in political discourse as "privatizing profits and socializing losses."

Resource refers to all the materials available in our environment which are technologically accessible, economically feasible and culturally sustainable and help us to satisfy our needs and wants. Resources can broadly be classified according to their availability as renewable or national and international resources. An item may become a resource with technology. The benefits of resource utilization may include increased wealth, proper functioning of a system, or enhanced well. From a human perspective, a regular resource is anything to satisfy human needs and wants.

<span class="mw-page-title-main">Overexploitation</span> Depleting a renewable resource

Overexploitation, also called overharvesting or ecological overshoot, refers to harvesting a renewable resource to the point of diminishing returns. Continued overexploitation can lead to the destruction of the resource, as it will be unable to replenish. The term applies to natural resources such as water aquifers, grazing pastures and forests, wild medicinal plants, fish stocks and other wildlife.

<span class="mw-page-title-main">Commodification of water</span> Process of turning water into a tradable commodity

The commodification of water refers to the process of transforming water, especially freshwater, from a public good into a tradable commodity also known as an economic good. This transformation introduces water to previously unencumbered market forces in the hope of being managed more efficiently as a resource. The commodification of water has increased significantly during the 20th century in parallel with fears over water scarcity and environmental degradation.

References

Citations

  1. 1 2 3 4 5 6 Mankiw, N.Gregory (2015). Principles of Economics (7th ed.). Cengage Learning, Inc. pp. 215–229. ISBN   978-1-285-16587-5.
  2. "Dimitrova, A., Hollan, K., Laster, D., Reinstaller, A., Schratzenstaller, M., Walterskirchen, E., Weiss, T. 2013 (September). Literature review on fundamental concepts and definitions, objectives and policy goals as well as instruments relevant for socio-ecological transition Working, Paper no 40, accessed May 14, 2015" (PDF). Archived from the original (PDF) on March 6, 2016. Retrieved May 15, 2015.
  3. Isik, J. 2011 (5 December ). Sustainability: A Number of Policy Points Focusing on the Environment and Global Warming, Social Europe, accessed May 14, 2015 Archived April 14, 2015, at the Wayback Machine
  4. Rawsthornjan, A. Debating Sustainability, January 31, 2010
  5. "OConnor, N. From Conspicuous Consumption to Collective Consumption, 1 December 2011". Archived from the original on 18 May 2015. Retrieved 15 May 2015.
  6. Hardin, Garrett (1968-12-13). "The Tragedy of the Commons". Science. 162 (3859). American Association for the Advancement of Science: 1243–1248. Bibcode:1968Sci...162.1243H. doi:10.1126/science.162.3859.1243. eISSN   1095-9203. ISSN   0036-8075. PMID   5699198.
  7. Staff, Investopedia. "Tragedy Of The Commons Definition". Investopedia. Archived from the original on 2010-03-27. Retrieved 2021-04-30.
  8. "What are Normal Goods?". Corporate Finance Institute. Retrieved 26 April 2022.

Bibliography