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Microeconomics: The Role of Markets

Ceteris paribus and market equilibrium and disequilibrium

  • 3 things to know
  • Component 01

Overview

Recall questions on the ceteris paribus assumption, market equilibrium, excess demand and excess supply, and how the price mechanism removes disequilibrium.

What you need to know

Answer each one before you reveal it.

Your recallNot started
Evaluation

What is one weakness of relying on ceteris paribus?

Key term

How does the market eliminate excess supply?

Key term

What does ceteris paribus mean?

Questions from this subtopic

Each one with the model answer underneath.

  1. 1

    What does ceteris paribus mean?

    Model answer

    All other things being equal, that is, all other influences are assumed to be held constant while one variable changes.

  2. 2

    Why must the ceteris paribus assumption be made before a demand curve has any meaning?

    Model answer

    Without it the effect of a price change could not be separated from the simultaneous effects of income, tastes and other prices.

  3. 3

    What is one weakness of relying on ceteris paribus?

    Model answer

    In the real world several variables change at once, so a prediction made by holding them constant may not be what is actually observed.

  4. 4

    At market equilibrium, what is true of quantity demanded and quantity supplied?

    Model answer

    They are equal, so there is no pressure on price to change.

  5. 5

    Where is the equilibrium found on a demand and supply diagram?

    Model answer

    At the intersection of the demand and supply curves, which gives the equilibrium price and equilibrium quantity.

  6. 6

    What exists in the market at a price above equilibrium?

    Model answer

    Excess supply, shown by the horizontal gap between the supply and demand curves at that price.

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