Government Intervention (Edexcel A Level Economics A): Exam Questions

Exam code: 9EC0

2 hours16 questions
1
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1 mark

Regulation of firms that pollute is likely to be a problem because it

  • allows firms to use price signals

  • creates unintended consequences

  • fills information gaps for businesses

  • means lower administrative costs

2
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1 mark

Which of these is not a cause of government failure?

  • Unintended consequences

  • Lack of administration costs

  • Information gaps

  • Distortion of price signals

3
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1 mark

In which of the following markets would the policy shown below be most likely to lead to an improvement in the allocation of resources compared to the free market output?

1-4-1-government-intervention---ad-valorem-tax
  • Flood defences

  • Healthcare

  • Petrol

  • Second-hand cars

4
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1 mark

What is the fall in revenue for the producer from the imposition of an ad valorem tax as shown below?

1-4-1-government-intervention---ad-valorem-tax
  • Area B

  • Area A + B

  • Area P1Q1 - P2Q2

  • Area P1Q1 - P3Q2

5
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1 mark

Which of the following options would be a likely consequence of a maximum price on rented accommodation

1-4-1-government-intervention---maximum-price_edexcel-al-economics
  • Large waiting lists for rented accommodation

  • More landlords entering the market to rent out their properties

  • A fall in supply of houses on the 'for sale' market

  • No effect because the maximum price is below the equilibrium price

6a
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2 marks

The market for cakes is in equilibrium at a price of £1.10 and a quantity of 4,000.

VAT is imposed at 20%, leading to a new equilibrium price of £1.20 and a quantity of 3,000. 

Calculate the total amount of government revenue earned from the tax?

1-4-1-government-intervention---ad-valorem-tax
6b
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2 marks

Explain one valid reason why the government might intervene in markets

7
1 mark

Case Study

A company that provides drinking water and treats waste water has been fined £180,000 after an incident that killed about 2,500 fish. The charges relate to an illegal discharge of sewage from the waste water treatment plant that polluted nine kilometres of the River Severn, a popular tourist destination.

(Source: adapted from https://www.leaderlive.co.uk)

Which one of the following is the most likely effect of the £180,000 fine?

  • Increase market failure

  • Increase profits for the water company

  • Reduce external costs

  • Reduce government failure

8
1 mark

Case Study

In 2025, fuel suppliers PowerFuel and GreenPetro were investigated by the Competition and Markets Authority (CMA) for suspected price fixing.

The CMA’s role in the UK energy market is primarily to:

  • Set minimum retail prices for petrol
    .

  • Prevent anti-competitive behaviour

  • Subsidise firms that raise output

  • Directly set consumer energy tariffs

1
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4 marks

Explain one likely effect of reducing the number of tradable pollution permits

Case Study

The EU tradable pollution permits scheme is expected to become more effective by 2020, due to recent reductions in the number of tradable pollution permits.

(Source adapted from: https://ec.europa.eu)

2
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5 marks

The UK Rail Industry

With refernce to Figure 1, explain the likely effect of the change in subsidy levels between 2017 and 2018 on rail fares.

Include a supply and demand diagram in your answer

Case Study

Figure 1: UK government subsidy to Northern, a train operating company in Northern England

9ec0-01-q6-1-nov-2020-1
3
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5 marks

With reference to Extract B, explain one reason for government intervention through regulation

Case Study

Extract B

Free market approach

Are free markets incompatible with good health? If the solution to every problem involves banning advertising, raising prices and restricting availability, you might easily conclude that the free market is the disease and government regulation is the cure. From this perspective, the providers of food, alcohol and tobacco are determined to push the most unhealthy products on the public at the lowest prices. Contrary to this viewpoint, the profit motive is not unhealthy. Businesses have an obvious incentive to keep their customers alive and customers have a strong incentive to seek out healthier options. Any company that can make a scientifically sound health claim gains a competitive advantage over its rivals. Health sells. In contrast, government regulation can lead to negative health outcomes. Markets can correct themselves long before government failures are even acknowledged. Over a million Britons, almost all of whom are smokers or ex-smokers, use e-cigarettes, as a less hazardous product than cigarettes and yet e-cigarettes face increased regulations and in many countries they are banned. It is neither consistent nor ethical to prevent smokers from switching to much safer alternatives. Efforts to regulate e-cigarettes are a far greater threat to public health than the products themselves. We argue that the interests of consumers are nearly always better advanced by the provision of accurate information and free choice than by prohibitions and regulations. The government policy of small but steady tax rises on tobacco and ever-larger warning labels is becoming less effective and leads to unintended consequences.

(Source: adapted from http://www.iea.org.uk)

1
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12 marks

Discuss the likely success of policies to reduce the consumption of single‑use plastic bags in cities such as Istanbul

Case Study

Extract B

Turkey aims to bin the plastic bag

You get a free plastic bag whenever you go to a shop, even if it is just to buy a loaf of bread or a chocolate bar. In Turkey, plastic bags are everywhere, with millions being thrown away, and their use is causing a growing environmental problem. In Istanbul, the country’s biggest city with about 12 million people, around 10000 tonnes of waste are being collected every day. Plastic bags and other plastic waste make up 950 tonnes, or almost 10%, of the total waste.

The Turkish government said it was looking at ways to discourage the consumption of single‑use plastic bags. One possible step currently under review is a ban of the black bags that are said to contain carcinogens. Another is that the state may raise taxes on plastic products, which could lead to supermarkets charging consumers for the bags.

In Corlu, a town north‑west of Istanbul, a local environmental group distributed 20000 canvas bags to shoppers in one month. In some parts of Turkey, plastic bags are completely banned, with heavy fines for both firms and consumers who use them.

(Source adapted from: https://www.thenational.ae/world)

2
8 marks

Case Study

The UK Energy Drinks Market

Figure 1: Market share of energy drink brands (2024)

Brand

Market Share (%)

Red Bull

32

Pulse Energy

28

Volt

20

Atomic Rush

10

Other Brands

10

Source: UK Beverage Association, 2024

Figure 2: UK Energy Drink Consumer Survey (2024)

Brand

Most Energizing (%)

Most Popular Among Friends (%)

Red Bull

78

80

Pulse Energy

70

75

Volt

60

50

Atomic Rush

50

40

Other Brands

20

15

Survey of 1,200 UK consumers aged 16–25

Extract A: Marketing activities

Energy drink brands in the UK have increased spending on marketing and sponsorship over the past five years. Red Bull and Pulse Energy sponsor large-scale events such as international esports tournaments, extreme sports, and music festivals. Volt and Atomic Rush focus on smaller regional sponsorships and university-level sports partnerships.

Marketing campaigns often use short-form video content on TikTok, YouTube, and Instagram, featuring athletes, musicians, and online personalities popular with young adults. Retailers confirm that Red Bull and Pulse Energy benefit from prominent in-store displays and greater online visibility through delivery apps and supermarket websites. Smaller brands typically rely on local advertising and word-of-mouth promotion.

Consumer interviews suggest that while some buyers are influenced by advertising and limited-edition product launches, others prioritise taste, caffeine strength, or packaging convenience. Some respondents said they try new products when they appear in stores or when friends recommend them.

Extract B: Production, distribution and packaging

Most energy drink manufacturers in the UK import ingredients such as caffeine and taurine, though bottling and packaging are mainly carried out domestically. Red Bull and Pulse Energy have expanded UK-based facilities in recent years, whereas Volt and Atomic Rush use third-party production. Analysts note that fluctuating aluminium and transport costs have affected packaging prices, putting pressure on profit margins.

Distribution networks are dominated by major supermarket chains, with convenience stores and petrol stations providing secondary outlets. Online grocery platforms have seen rapid growth since 2020, and many smaller companies use direct-to-consumer websites to reach niche markets. However, large retailers often charge listing fees or require promotional commitments that can be difficult for newer entrants to meet.

Product development has focused on sugar-free and low-calorie lines in response to shifting consumer tastes and public-health initiatives. Several companies have trialled recyclable packaging and smaller cans aimed at environmentally aware consumers. Manufacturers typically expand output in summer months to match higher demand linked to festivals and sporting events.

Extract C: Consumer behaviour, health and regulation

Surveys of young adults aged 16–25 show that energy drinks have become a regular feature of social and academic life. Many report drinking them during study sessions, part-time work, and social occasions. Some participants describe energy drinks as “essential” for concentration and staying awake during exams or night shifts, while others associate them with parties, gaming, and sporting activity.

Lifestyle patterns strongly influence brand choice. Products associated with gaming or music are especially popular among frequent consumers, while fitness-oriented individuals are more likely to select brands advertising “low sugar” or “natural” ingredients. Several respondents say they first tried a brand because of sponsorships at festivals or university events. Peer influence also matters: many consumers report choosing the brand their friends prefer, though some state that taste and perceived energy boost outweigh social factors.

Focus-group discussions highlight how consumption habits vary by gender and activity. Male respondents are more likely to purchase large cans before exercise or gaming sessions, whereas female consumers often prefer smaller cans or sugar-free options. Some mention switching brands when new flavours are released or when prices are discounted at convenience stores.

Health organisations, including the British Dietetic Association and the Royal Society for Public Health, have expressed concern about the growing consumption of high-caffeine, high-sugar drinks among young adults. Studies have linked frequent use to disrupted sleep patterns, anxiety, and cardiovascular strain. Several schools and universities have restricted sales on campus, citing wellbeing concerns.

Public debate has turned to possible government intervention. Suggested measures include clearer caffeine labelling, age restrictions on purchases, and limits on marketing directed at under-18s. Government bodies have also suggested introducing a tax on energy drinks to discourage overconsumption among young adults and to fund public health initiatives. Industry reactions vary: Red Bull has said its products are intended for adults and already meet existing guidelines, while Pulse Energy has stated that any new regulations would mainly affect advertising rather than production. Smaller brands argue that tighter advertising rules could reduce the dominance of the largest firms by giving newer entrants greater visibility.

Consumer groups have also called for educational campaigns about caffeine consumption, claiming that awareness is low among younger people. Surveys indicate that many consumers underestimate the caffeine content of energy drinks compared with coffee. Some analysts believe that long-term health campaigns could gradually shift demand toward low-sugar or functional beverages, reshaping the competitive landscape of the industry.

With reference to Extract C, examine how TWO methods of government intervention in the energy drinks market could affect economic growth in the UK

1
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25 marks

Evaluate the microeconomic and macroeconomic effects of increased government spending on education to promote healthy eating in the UK

Case Study

Table showing UK potato crisps market share, 2017. Walkers leads with 55.3%, followed by KP at 22.7%, Tayto 4.2%. Prices vary by size and brand.

Extract A

The effects of a total ban on advertising of HFSS foods

Foods and drinks that are high in fat, salt, or sugar (HFSS) tend to be sold in highly concentrated markets. Tough new rules banning advertisements for HFSS products, such as those for confectionery, fizzy drinks, and potato crisps, come into effect in July 2017 as a means to reduce consumption. The rules apply to media targeted at under-16s and will mean a major reduction in the number of advertisements children see for HFSS products in posters near schools, in films targeted at children, on catch-up television, and in social media if it is directed at children.

There are three main factors that will determine the effectiveness of the intervention: first, whether advertising acts to expand the market share or steal rivals’ market share. Secondly, how firms in the market adapt their behaviour in response to the ban. Thirdly, what substitute products do consumers turn to if they opt out of the targeted market.

Results from a recent survey in the UK suggest that the total quantity of crisps sold would fall by around 15% in the presence of an advertising ban, or by 10% if firms respond with price cuts, since the ban acts to make the market more competitive and firms respond to the ban by, on average, lowering their prices.

The survey showed that following a ban, consumers are more likely to switch to another junk food than to a healthy food, which (in addition to the pricing response of firms) acts to partially offset any health gains from the policy.

(Source: adapted from https://academic.oup.com and https://www.asa.org.uk)

Extract B
Taxing HFSS foods and subsidising healthy eating widens inequality

Since low-income groups spend a higher proportion of their income on food and tend to eat less healthily, they are the main targets of taxes on products that are high in fat, salt or sugar (HFSS). Subsidies on healthy food are seen as an alternative policy approach to encourage healthy eating. While data on the impact of such policies are scarce, a recent study on the distributional impacts of HFSS taxes and healthy food subsidies found that these actually widened health and fiscal inequalities.

The policies tend to be regressive and favour higher-income consumers. Taxes on unhealthy food increase prices which have a greater impact on low income groups rather than higher income groups. Lower income groups prefer to buy HFSS food. Subsidies encouraged all income groups to buy more fruit and vegetables. However, those on higher incomes proved more responsive and the average share of budget spent on healthy food actually increased for the higher income groups who were more likely to buy the subsidised healthy food and then spend the savings they had enjoyed on yet more healthy food.

The diets of the higher income groups before the subsidy tended to be healthier. The choices of the higher income groups are more responsive to price changes. By contrast, lower income groups, if they responded to lower prices, often used the money saved to buy unhealthy items or something else entirely. The long-term benefits of a healthier diet are harder to grasp for consumers when information gaps exist. Often the immediate boost of a tasty treat is more appealing. Taxes and subsidies do not change that. Other strategies are needed to promote healthy eating, especially education.

(Source: adapted from Economist)

Extract C
Tax on fatty foods in Denmark is an economic disaster

Denmark introduced a specific tax on saturated fat in October 2011. Recognised as a world-leading public health policy, it was abandoned just 15 months later having been both an economic and political disaster. Indirect taxes of this sort are invariably regressive, disproportionately affecting the elderly and the poor.

The specific tax led to prices rising on average 15% for highest-fat products, yielding a total decrease of 5% in the intake of saturated fat from products such as minced beef and cream. 80% of Danish consumers did not change their shopping habits at all. The behavioural change was economically damaging as consumers switched to cheaper brands and crossed the border to Sweden and Germany to do their shopping. Danish tax revenue fell as a result.

(Source: adapted from https://iea.org.uk/)

2
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25 marks

Evaluate the likely microeconomic and macroeconomic effects of imposing a tax on HFSS foods.

Case Study

Figure 1: UK Market Share of Crisps

Table showing UK market share of potato crisps, 2017. Walkers lead with 55.3%, KP at 22.7%, Tayto at 4.2%, and others total 17.8%. Prices vary by size.

Extract A

The effects of a total ban on advertising of HFSS foods

Foods and drinks that are high in fat, salt, or sugar (HFSS) tend to be sold in highly concentrated markets. Tough new rules banning advertisements for HFSS products, such as those for confectionery, fizzy drinks, and potato crisps, come into effect in July 2017 as a means to reduce consumption. The rules apply to media targeted at under-16s and will mean a major reduction in the number of advertisements children see for HFSS products in posters near schools, in films targeted at children, on catch-up television, and in social media if it is directed at children.

There are three main factors that will determine the effectiveness of the intervention: first, whether advertising acts to expand the market share or steal rivals’ market share. Secondly, how firms in the market adapt their behaviour in response to the ban. Thirdly, what substitute products do consumers turn to if they opt out of the targeted market.

Results from a recent survey in the UK suggest that the total quantity of crisps sold would fall by around 15% in the presence of an advertising ban, or by 10% if firms respond with price cuts, since the ban acts to make the market more competitive and firms respond to the ban by, on average, lowering their prices.

The survey showed that following a ban, consumers are more likely to switch to another junk food than to a healthy food, which (in addition to the pricing response of firms) acts to partially offset any health gains from the policy.

(Source: adapted from https://academic.oup.com and https://www.asa.org.uk)

Extract B
Taxing HFSS foods and subsidising healthy eating widens inequality

Since low-income groups spend a higher proportion of their income on food and tend to eat less healthily, they are the main targets of taxes on products that are high in fat, salt or sugar (HFSS). Subsidies on healthy food are seen as an alternative policy approach to encourage healthy eating. While data on the impact of such policies are scarce, a recent study on the distributional impacts of HFSS taxes and healthy food subsidies found that these actually widened health and fiscal inequalities.

The policies tend to be regressive and favour higher-income consumers. Taxes on unhealthy food increase prices which have a greater impact on low income groups rather than higher income groups. Lower income groups prefer to buy HFSS food. Subsidies encouraged all income groups to buy more fruit and vegetables. However, those on higher incomes proved more responsive and the average share of budget spent on healthy food actually increased for the higher income groups who were more likely to buy the subsidised healthy food and then spend the savings they had enjoyed on yet more healthy food.

The diets of the higher income groups before the subsidy tended to be healthier. The choices of the higher income groups are more responsive to price changes. By contrast, lower income groups, if they responded to lower prices, often used the money saved to buy unhealthy items or something else entirely. The long-term benefits of a healthier diet are harder to grasp for consumers when information gaps exist. Often the immediate boost of a tasty treat is more appealing. Taxes and subsidies do not change that. Other strategies are needed to promote healthy eating, especially education.

(Source: adapted from Economist)

Extract C
Tax on fatty foods in Denmark is an economic disaster

Denmark introduced a specific tax on saturated fat in October 2011. Recognised as a world-leading public health policy, it was abandoned just 15 months later having been both an economic and political disaster. Indirect taxes of this sort are invariably regressive, disproportionately affecting the elderly and the poor.

The specific tax led to prices rising on average 15% for highest-fat products, yielding a total decrease of 5% in the intake of saturated fat from products such as minced beef and cream. 80% of Danish consumers did not change their shopping habits at all. The behavioural change was economically damaging as consumers switched to cheaper brands and crossed the border to Sweden and Germany to do their shopping. Danish tax revenue fell as a result.

(Source: adapted from https://iea.org.uk/)

3
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25 marks

Evaluate the likely microeconomic effects of such a tax.

Case Study

In 2015 a report by Public Health England recommended the imposition of a 20% tax on the sale of soft drinks that contain high levels of sugar.