1.2.6 · How markets work

Price determination

The lesson for this topic

Question 11 mark

Demand is P=40−2QP = 40 - 2Q and supply is P=10+QP = 10 + Q. What is the equilibrium price?

Question 21 mark

In the same market, P=40−2QP = 40 - 2Q and P=10+QP = 10 + Q, a maximum price of £15 is imposed. What is the excess demand?

Question 31 mark

At a price above equilibrium there is

Question 41 mark

Demand rises and supply falls at the same time. What happens?

Question 51 mark

Demand and supply both increase. Which outcome is certain?

Question 61 mark

A student writes: 'Demand for concert tickets rose, so the price rose, which shifted supply to the right.' What is wrong?

Question 71 mark

Demand shifts from D1D_1 to D2D_2. What is the new equilibrium?

Question 81 mark

Why does a shortage tend to disappear in a free market?

Data response 140 marks

Avocado prices

A wholesale market for avocados in the UK.

Extract A: Wholesale avocado prices

Average wholesale price, pounds per kilogram
YearPrice (£/kg)Volume traded (tonnes)
20232.405,200
20243.005,000

Extract B: A difficult year

Drought in two major growing regions cut harvests in 2024. At the same time, cafés added avocado dishes to their menus and supermarket sales of avocados kept growing. Some growers are planting new orchards, which take three to four years to produce fruit.

(a) Calculate2 marks

Using Extract A, calculate the percentage change in the wholesale price of avocados between 2023 and 2024.

(b) Explain5 marks

With the help of a supply and demand diagram, explain why the price of avocados rose in 2024.

0 words
(c) Examine8 marks

Examine two factors that could cause the price of avocados to fall over the next five years.

0 words
(d) Assess10 marks

Assess the likely effects of the higher price of avocados on consumers and growers.

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(e) Discuss15 marks

Discuss whether the price mechanism is the best way to allocate avocados when supply is disrupted.

0 words

Independent practice for Pearson Edexcel A-level Economics A (9EC0), not endorsed by Pearson.

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