2 marks
Q7(a) Work out the four-firm concentration ratio for global fast food from the 2023 market share chart.
Edexcel · 9EC0 / 8EC0 / WEC11–14
Concentration ratio comes up in 10 questions across the Edexcel A Level, AS and International A Level past papers (9EC0 / 8EC0 / WEC11–14), worth 20 marks between them. They run from 2020 to 2025 and appear on International A Level Unit 3.
Tariffs run from 1 to 4 marks. The commonest instructions are Calculate (4), Calculate (MCQ) (4), Explain (2). Specification points covered: 3.3.3.2.
Q7(a) Work out the four-firm concentration ratio for global fast food from the 2023 market share chart.
Q7(c) Explain which market structure best fits China's electric vehicle industry, using the market share chart.
Q7(b) Explain the term 'concentration ratio', drawing on Figure 2 and Extract A's second paragraph.
Q7(a) Work out the percentage point shift in India's four-firm concentration ratio for mobile phone brands, 2020 to 2021.
Q4 Using a chart of US domestic airline market shares from February 2019 to January 2020, calculate the five-firm concentration ratio.
Q7(a) Work out the four-firm concentration ratio in America's 2019 car market from Figure 1.
Q2 Using a chart of Japanese mobile virtual network operator market shares in 2019, calculate the five-firm concentration ratio.
Q7(a) Work out, showing your method, the four-firm concentration ratio in China's 2018 car market, using Figure 2.
Q2 Using a chart of Indian smartphone market shares in Q4 2019, calculate the four-firm concentration ratio.
Q2 Using a table of UK grocery market shares in March 2016 and March 2017, calculate the three-firm and five-firm concentration ratios and identify the correct statement.
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