levo

Microeconomics: The Role of Markets

Changes in demand and supply and their effects on related markets

  • 3 things to know
  • Component 01

Overview

Recall questions on how changes in demand and supply move price and quantity, the rationing function of price, knock-on effects in related markets, and derived demand.

What you need to know

Answer each one before you reveal it.

Your recallNot started
Evaluation

Demand and supply both fall. What is certain?

Key term

A poor wheat harvest raises the price of wheat. Trace the effect on the market for bread.

Key term

Supply falls while demand is unchanged. What happens to price and quantity?

Questions from this subtopic

Each one with the model answer underneath.

  1. 1

    Demand rises while supply is unchanged. What happens to price and quantity?

    Model answer

    Both the equilibrium price and the quantity traded rise.

  2. 2

    Supply falls while demand is unchanged. What happens to price and quantity?

    Model answer

    The equilibrium price rises and the quantity traded falls.

  3. 3

    Demand and supply both increase. What can be said with certainty?

    Model answer

    The quantity traded definitely rises, but the effect on price is indeterminate and depends on which shift is larger.

  4. 4

    Demand and supply both fall. What is certain?

    Model answer

    The quantity traded definitely falls, while price may rise, fall or stay the same depending on the relative sizes of the shifts.

  5. 5

    What is the rationing function of price?

    Model answer

    A higher price restricts demand to the quantity available by pricing out the consumers who value the good least.

  6. 6

    The price of electric cars falls sharply. Trace the effect on the market for petrol cars.

    Model answer

    Petrol cars are substitutes, so their demand curve shifts to the left, lowering their equilibrium price and quantity.

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.

Introduction to Microeconomics
Microeconomics: The Role of Markets
Microeconomics: Business Objectives
Microeconomics: Market Structures

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.

An of demand.
extensionincreaseelasticity

Blank Blitz makes facts automatic

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

AAt 0% nothing is levied at all.
BAt 100% there is no reward left for the taxed activity.
CThe activity ceases and there is nothing to tax.

Build It gets the exam shape right

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

Economic growth means an increase in real output over a period.
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 Microeconomics: The Role of Markets, 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.