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Microeconomics: The Role of Markets

Regulation, tradable pollution permits and government failure

  • 3 things to know
  • Component 01

Overview

Recall questions on regulation, tradable pollution permits, information provision, competition policy tools, and the causes and consequences of government failure.

What you need to know

Answer each one before you reveal it.

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Process

How does a tradable pollution permit scheme work, and why is it efficient?

Key term

What is an example of regulation, and what is one weakness of relying on it?

Key term

How does regulation differ from legislation?

Questions from this subtopic

Each one with the model answer underneath.

  1. 1

    How does regulation differ from legislation?

    Model answer

    Legislation is the law itself passed by Parliament, while regulation is the detailed body of rules, standards and enforcement applied within that law, often by an industry regulator.

  2. 2

    What is an example of regulation, and what is one weakness of relying on it?

    Model answer

    Emission standards for new vehicles are an example, but regulation is costly to monitor and enforce and firms may find ways to work around the rules.

  3. 3

    How does a tradable pollution permit scheme work, and why is it efficient?

    Model answer

    The authority caps total emissions and issues permits covering that amount, and firms that cut emissions cheaply sell their spare permits to firms for which abatement is expensive, so the cap is met at the lowest total cost.

  4. 4

    What are two problems with tradable pollution permits?

    Model answer

    Setting the cap requires knowing the socially optimum level of emissions, and issuing too many permits collapses their price and removes the incentive to cut pollution.

  5. 5

    How does information provision correct market failure, and what is its main limitation?

    Model answer

    Campaigns, labelling and compulsory disclosure move perceived private benefit towards true social benefit and so shift demand towards the optimum, but the effect is slow and may be ignored where consumption is habitual.

  6. 6

    What does competition policy aim to do, and what are three of its tools?

    Model answer

    It aims to stop firms abusing market power at consumers' expense, using merger control, action against cartels and other anti-competitive agreements, and price or quality regulation of natural monopolies.

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An of demand.
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AAt 0% nothing is levied at all.
BAt 100% there is no reward left for the taxed activity.
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Economic growth means an increase in real output over a period.
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