levo

Introducing the Market

Equilibrium price and quantity

  • 3 things to know
  • Papers 1 and 3

Overview

Market equilibrium and the market-clearing price, calculating shortages and surpluses, equilibrium as a position of rest, how shifts in demand and supply move price and quantity, the quantity traded, consumer and producer surplus, and why equilibrium can leave consumers unable to buy.

What you need to know

Answer each one before you reveal it.

Your recallNot started
Key term

What is meant by the market-clearing price?

Key term

Why is equilibrium described as a position of rest?

Key term

What happens to equilibrium price and quantity if supply rises while demand is unchanged?

Questions from this subtopic

Each one with the model answer underneath.

  1. 1

    Define market equilibrium.

    Model answer

    Market equilibrium is the price at which the quantity demanded equals the quantity supplied, so there is no tendency for the price to change.

  2. 2

    Where is equilibrium found on a supply and demand diagram?

    Model answer

    It is at the point where the demand curve and the supply curve intersect.

  3. 3

    What is meant by the market-clearing price?

    Model answer

    The market-clearing price is the price at which everything offered for sale is bought, leaving neither a surplus nor a shortage.

  4. 4

    At £5 a unit demand is 800 and supply is 500. State the size and type of the disequilibrium.

    Model answer

    There is excess demand of 300 units, because buyers want more than producers will supply at that price.

  5. 5

    At £8 a unit supply is 900 and demand is 600. Calculate the surplus.

    Model answer

    There is a surplus of 300 units.

  6. 6

    Why is equilibrium described as a position of rest?

    Model answer

    At that price the plans of buyers and sellers match, so neither side has any reason to change its behaviour.

Other ways to work this

The same content, four other ways.

What is inside Levo

Six ways to work the same material.

1Closed book
2Open book
3Closed book

The 3-step method, run for you

Answer cold, learn it, then prove it stuck. Levo tracks the jump between your first attempt and your last.

Scarcity, Choice and Potential Conflicts
Enterprise, Business and the Economy
Introducing the Market
The Role of Credit in the Economy

Cram a whole paper in one sitting

Sort every topic into what you know and what you do not, then drill only the weak ones.

Brazil, , India and China.
RussiaMexicoIndonesia

Blank Blitz makes facts automatic

Rapid timed gap-fills on the terms and numbers you need to recall without thinking.

ABorrowing becomes dearer and saving more rewarding.
BMortgage holders have less disposable income left.
CSpending on credit-financed items falls.

Build It gets the exam shape right

Assemble a full-mark answer from its marking points, in the order an examiner wants them.

Wage rate means the amount an employer pays for one hour of work.
TrueFalse

Test It catches misconceptions

Spot the fault in a statement. The traps are the mistakes students actually make.

721941163128510

Brain Breaks between sessions

Short focus games to reset attention, so the next set lands better than the last.

Every question in Introducing the Market, on a schedule.

Attempt a question from memory, write the correct version, then attempt it again. Levo records the jump between your first attempt and your last, and brings each question back on the day you are due to forget it.

Or £46 a year, about £3.83 a month. Cancel anytime.