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There are plenty of examples of economic activities that can generate positive externalities:
Industrial training by firms: This can reduce the costs faced by other firms and has important effects on labour productivity. A faster growth of productivity allows more output to be produced from a given amount of resources and helps improve living standards throughout the economy. See the revision notes on the production possibility frontier
Research into new technologies which can then be disseminated for use by other producers. These technology spill-over effects help to reduce the costs of other producers and cost savings might be passed onto consumers through lower prices
Education: A well educated labour force can increase efficiency and produce other important social benefits. Increasingly policy-makers are coming to realise the increased returns that might be exploited from investment in human capital at all ages.
Health provision: Improved health provision and health care reduces absenteeism and creates a better quality of life and higher living standards.
Employment creation by new small firms
Flood protection system and spending on improved fire protection in schools and public arenas
Arts and sporting participation and enjoyment derived from historic buildings"
Taken from http://tutor2u.net/economics/content/topics/externalities/positive_externalities.htm
False; noise pollution form a race track is not an example of positive externality. It is more likely an example of negative externality.
Negative.
An example of a positive externality in economics is education. When individuals receive education, it not only benefits them personally by increasing their skills and earning potential, but it also benefits society as a whole by creating a more knowledgeable and skilled workforce, leading to economic growth and innovation. This positive externality helps to improve overall productivity and well-being in society.
A positive externality occurs when an individual's actions benefit others who are not directly involved in the transaction. For example, when a homeowner invests in a beautifully landscaped garden, it not only enhances their property value but also improves the aesthetic appeal of the neighborhood, potentially increasing property values for nearby homes and providing enjoyment to passersby. This unintended benefit to others exemplifies a positive externality.
Externality - Negative Externality And Positive Externality the positive externality is a cause of a market failure because producers do not take the benefits of externality into account to society, therefore they under-produce the good that generates it , a negative externality happens where MSC > MSB. Factor Immobility And Market Power .
It can be either positive or negative.
An externality is an effect of a decision on a third party not taken into account by the decision maker. One example that comes to mind is a new business opening in an area. The decision of where to place a new Wal-Mart is an important decision for the company. But in the course of making that decision, they will not consider every alternative. For example, some of the other businesses in the area may experience larger sales because Wal-Mart will bring more people to the area. An externality can be positive or negative. A negative externality is negative when the decision is detrimental to those outside the decision. A positive externality occurs when the effect of a decision is beneficial to others outside the decision.
Externality refers to the action of a person on a bystander's well-being. A simple example of eternality is the effect of our actions to a bystander.
an economic side effect that generates unexpected benefits
One government policy measure that can be used to internalise a positive externality of production is state intervention in trade activities.
positive externality
Positive externality