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Market Failure and Government Intervention

Externalities in production and consumption

  • 3 things to know
  • Papers 1 and 3

Overview

Externalities in production and consumption, negative and positive examples of each, over-production and under-consumption, the socially optimal level of output, a negative production externality on a diagram, the full external cost of petrol, demerit goods, missing price signals, and property rights.

What you need to know

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Key term

What is the difference between a production externality and a consumption externality?

Key term

Give an example of a negative production externality.

Key term

Give an example of a negative consumption externality.

Questions from this subtopic

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  1. 1

    Define an externality.

    Model answer

    An externality is a cost or a benefit from an economic activity that falls on a third party and is not reflected in the market price.

  2. 2

    What is the difference between a production externality and a consumption externality?

    Model answer

    A production externality arises from the way a good is made and affects the cost side of the market, while a consumption externality arises from the way it is used and affects the benefit side.

  3. 3

    Give an example of a negative production externality.

    Model answer

    Effluent from a paper mill polluting a river and destroying the fisheries downstream.

  4. 4

    Give an example of a negative consumption externality.

    Model answer

    The passive smoking and health costs a smoker imposes on the people around them.

  5. 5

    Give an example of a positive production externality.

    Model answer

    A firm's research spilling over into techniques that other firms can then use without paying for them.

  6. 6

    Give an example of a positive consumption externality.

    Model answer

    A homeowner restoring a run-down period property, which raises the appearance and the value of the whole street.

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