2023 AQA GCSE Economics 8136 Practice Paper with Answers

A subsidy shifts the supply curve to the right, lowering the market price and expanding equilibrium quantity. Since solar panels generate positive externalities in consumption (clean energy), subsidising them increases their consumption towards the socially optimum level, helping to correct market failure. Option A is incorrect because a subsidy increases supply. Option B is incorrect because consumers pay a lower net price. Option D is incorrect because the subsidy aims to increase the realization of these positive externalities.

1 mark for the correct answer: C.
0 marks for any incorrect answer.

Shoe-leather costs refer to the time and effort people spend trying to counter the effects of inflation, such as holding less cash and making more frequent trips to the bank to keep money in interest-bearing accounts. Option A describes menu costs. Option C describes fiscal drag. Option D relates to international price competitiveness rather than consumer search costs.

1 mark for the correct answer: B.
0 marks for any incorrect answer.

An increase in the retirement age keeps older workers in the workforce for longer, which increases the overall supply of labour. Assuming labour demand remains constant, an increase in labour supply leads to a downward pressure on equilibrium wage rates. Therefore, option B is correct and option A is incorrect. Option C and D are incorrect because the retirement age directly influences the supply of labour, not the demand for labour.

1 mark for the correct answer: B.
0 marks for any incorrect answer.

An oligopoly is dominated by a few large firms. A key feature of this structure is interdependence, meaning that the pricing and output decisions of one firm directly affect and are affected by the decisions of its rivals. Option A describes a monopoly. Option B describes perfect competition. Option D describes contestable markets or perfect competition.

1 mark for the correct answer: C.
0 marks for any incorrect answer.

Tradeable pollution permits set a limit on emissions but allow firms to buy and sell permits. Firms that can easily reduce pollution will do so and sell their surplus permits for profit, creating a market-based incentive to adopt cleaner technologies. Option A is incorrect because permits allow some pollution up to a cap (not absolute zero). Option C is incorrect because the scheme aims to reduce, not increase, demand for highly polluting goods. Option D is incorrect as it would worsen pollution.

1 mark for the correct answer: B.
0 marks for any incorrect answer.

The rate of inflation is calculated as the percentage change in the price index: \(\frac{\text{New Index} - \text{Old Index}}{\text{Old Index}} \times 100\). Substituting the numbers: \(\frac{109.2 - 104.0}{104.0} \times 100 = \frac{5.2}{104.0} \times 100 = 5.0\%\). Therefore, option A is correct.

1 mark for the correct calculation and answer: A.
0 marks for any incorrect answer.

Non-monetary factors are non-financial job features that make an occupation more or less attractive. Flexible working hours (Option C) improve work-life balance and increase labour supply. Options A, B, and D are all financial (monetary) incentives.

1 mark for the correct answer: C.
0 marks for any incorrect answer.

Because a monopolist has significant market power and faces no direct competition, they can restrict output and set higher prices to maximise profits. This leads to higher prices and lower output than would exist in a competitive market. Therefore, option B is correct, and options A, C, and D are incorrect.

1 mark for the correct answer: B.
0 marks for any incorrect answer.

A subsidy granted to producers reduces their costs of production, which shifts the market supply curve to the right. This shift results in a lower equilibrium market price and a higher equilibrium quantity traded, thereby increasing the consumption of electric vehicles and reducing the underconsumption associated with the positive externality.

1 mark for the correct option (B).
0 marks for any other option.

Demand-pull inflation occurs when aggregate demand grows faster than aggregate supply. A significant increase in consumer confidence encourages households to spend more and save less, raising consumer expenditure (a component of aggregate demand), which pulls prices upwards. Option A and Option D would reduce aggregate demand, while Option B would lead to cost-push inflation.

1 mark for the correct option (C).
0 marks for any other option.

A subsidy is a payment from the government to encourage the consumption of a merit good. The government can achieve this by: 1. Giving direct grants to bus or rail operators to lower their running costs, leading to lower consumer fares. 2. Offering discounted travelcards or vouchers directly to commuters, making public transport cheaper relative to driving.

Award 1 mark for each valid method stated, up to a maximum of 2 marks. Valid methods include: direct subsidies to operators, discounted or free travel passes, tax relief for public transport providers, or government funding of public transport infrastructure.

A regulation (such as a ban) provides certainty because it legally prevents the production or use of single-use plastics. In contrast, an indirect tax only increases the price, which might not deter high-income consumers who can afford the extra cost, leading to continued pollution.

Award 1 mark for identifying a valid reason (e.g. certainty of outcome, high effectiveness, ease of enforcement). Award 1 mark for explaining why this makes it preferable to an indirect tax in the context of single-use plastics.

Crude oil is a vital input for many industries and is used to produce fuel. When the price of crude oil rises, businesses face higher manufacturing and transportation costs. To maintain their profit margins, firms pass these higher costs onto consumers in the form of higher prices, leading to cost-push inflation.

Award 1 mark for explaining that higher oil prices increase production or transport costs for businesses. Award 1 mark for explaining how this leads to firms raising retail prices, causing cost-push inflation.

High and unpredictable inflation harms consumers in several ways. First, if wages do not rise in line with inflation, consumers experience a fall in real incomes and purchasing power. Second, the real purchasing power of any savings held in low-interest accounts is eroded, reducing household wealth.

Award 1 mark for each valid consequence stated, up to a maximum of 2 marks. Valid consequences include: reduced purchasing power/real incomes, erosion of the real value of savings, difficulty in budgeting/making financial plans, and shoe-leather costs.

The demand for delivery drivers is a derived demand, meaning it depends on the demand for the final service they provide. As consumers increase their demand for online home delivery services, delivery companies must recruit more drivers to fulfill these deliveries, which increases the demand for delivery drivers in the labor market.

Award 1 mark for identifying that the demand for labor is a derived demand. Award 1 mark for explaining that higher consumer demand for the final service leads to firms demanding more labor (drivers) to meet that demand.

The supply of labor to an occupation is influenced by non-wage factors. These include: 1. Better working conditions, such as flexible hours or working from home. 2. A rise in the quality or availability of training, making it easier for people to qualify and enter the profession.

Award 1 mark for each valid non-wage factor stated, up to a maximum of 2 marks. Valid factors include: improved working conditions/job security, lower qualifications required, increased availability of training, positive changes in societal attitudes/prestige, or a rise in the retirement age.

In a highly competitive market, there are a large number of buyers and sellers, and the goods sold are homogeneous (identical). If a firm attempts to raise its price above the market rate, consumers will immediately switch to competitors who offer the same product at the lower market price, meaning the firm has no pricing power.

Award 1 mark for identifying a key characteristic of competitive markets (e.g. homogeneous goods, many firms, perfect information). Award 1 mark for explaining how this characteristic limits the firm's ability to set its own price without losing all its customers.

Tradable pollution permits work by setting a cap on emissions and allowing firms to buy and sell permits. This has two key advantages: 1. It provides a market-based financial incentive for firms to adopt green technology, as they can sell unused permits for profit. 2. It ensures the total volume of carbon emissions is capped, giving the government precise control over the overall pollution level.

Award 1 mark for each valid advantage stated, up to a maximum of 2 marks. Valid advantages include: setting a guaranteed limit on total emissions, incentivising investment in green technology, raising government revenue (if permits are auctioned), and allowing market flexibility for cost-effective pollution reduction.

A subsidy is a financial grant given by the government to producers. By reducing the costs of production, it shifts the supply curve to the right, which lowers the market price of the good (e.g., healthcare or education). This lower price makes the good more affordable, causing an expansion in demand and increasing consumption closer to the socially optimal level, thereby reducing under-consumption and correcting the market failure.

- 1 mark for explaining how a subsidy reduces the price of the good or service (or increases its supply).
- 1 mark for linking this price reduction to an increase in quantity demanded/consumption towards the socially optimum level (or reducing under-consumption).

Inflation is the rate at which the general level of prices for goods and services is rising. If the UK experiences a high rate of inflation compared to its trading partners, the prices of UK-manufactured goods will increase. Consequently, UK exports become less price-competitive in global markets. Foreign consumers will switch to cheaper alternatives from other countries, resulting in a fall in the volume of goods exported by the UK.

- 1 mark for explaining that high inflation makes UK exports relatively more expensive or less price-competitive.
- 1 mark for linking this loss of competitiveness to a reduction in demand or sales volume from foreign buyers.

Step 1: Calculate the Consumer Price Index (CPI) for Year 2. Using Year 1 as the base year (Index = 100), CPI for Year 2 = \(\left(\frac{\text{Cost in Year 2}}{\text{Cost in Year 1}}\right) \times 100 = \left(\frac{162}{150}\right) \times 100 = 108\). Step 2: Calculate the inflation rate between Year 2 and Year 3. Inflation Rate = \(\left(\frac{\text{CPI in Year 3} - \text{CPI in Year 2}}{\text{CPI in Year 2}}\right) \times 100 = \left(\frac{113.4 - 108}{108}\right) \times 100 = \left(\frac{5.4}{108}\right) \times 100 = 5\%\).

1 mark for showing a correct method to calculate the Year 2 CPI (108) or setting up the percentage change formula: \(\frac{113.4 - 108}{108} \times 100\). 1 mark for the correct final answer of 5% (or 5). Correct answer on its own gets full marks.

Step 1: Calculate the real weekly wage in Year 1. Real Wage in Year 1 = \(\left(\frac{\text{Nominal Wage in Year 1}}{\text{CPI in Year 1}}\right) \times 100 = \left(\frac{400}{100}\right) \times 100 = £400\). Step 2: Calculate the real weekly wage in Year 2. Real Wage in Year 2 = \(\left(\frac{\text{Nominal Wage in Year 2}}{\text{CPI in Year 2}}\right) \times 100 = \left(\frac{462}{105}\right) \times 100 = £440\). Step 3: Calculate the percentage increase in the real weekly wage. Percentage Increase = \(\left(\frac{\text{Real Wage in Year 2} - \text{Real Wage in Year 1}}{\text{Real Wage in Year 1}}\right) \times 100 = \left(\frac{440 - 400}{400}\right) \times 100 = 10\%\).

1 mark for correctly calculating the Year 2 real wage (£440) or setting up the correct percentage change formula: \(\frac{440 - 400}{400} \times 100\). 1 mark for the correct final answer of 10% (or 10). Correct answer on its own gets full marks.

To calculate the rate of inflation between Year 2 and Year 3: First, calculate the change in CPI: \(111.3 - 105.0 = 6.3\). Next, divide this change by the CPI in Year 2: \(6.3 / 105.0 = 0.06\). Finally, multiply by 100 to get the percentage: \(0.06 \times 100 = 6\%\). The rate of inflation is 6%.

1 mark for calculating the change in CPI of 6.3. 1 mark for the correct method: \((6.3 / 105.0) \times 100\). 1 mark for the correct answer of 6% (or 6). Award full 3 marks for the correct answer 6% (or 6) even if no working is shown.

The introduction of a £0.25 tax on single-use coffee cups is an intervention to correct market failure from negative externalities of consumption.

1. **Impact on Consumers:**
- **Price Increase:** Part or all of the £0.25 tax is likely to be passed on to consumers in the form of higher prices. This reduces the real income of coffee buyers and lowers consumer surplus.
- **Behavioral Shift:** To avoid paying the tax, consumers are incentivised to change their habits by purchasing reusable travel mugs. Some consumers may choose to switch to drinking coffee in-store or reduce their overall consumption of takeaway coffee.

2. **Impact on the Environment:**
- **Reduction in Waste:** The higher cost contraction in demand for takeaway coffees in single-use cups. Consequently, fewer cups will be sent to landfills or incinerators, and local litter will decrease.
- **Internalising the Externality:** By making consumers pay for the external costs of cleanup and degradation, the market price better reflects the true social cost of the product. This aligns the market equilibrium closer to the socially optimum level of output, reducing environmental degradation.

This question is marked using a level of response grid:

**Level 3 (5–6 marks):**
- Detailed and logical analysis of the impact of the tax on both consumers and the environment.
- Clear chains of economic reasoning demonstrating how the tax changes consumer behavior and how this leads to positive environmental outcomes.
- Consistently applied to the context of coffee cups and negative externalities.

**Level 2 (3–4 marks):**
- Reasonable analysis of the tax, but may focus heavily on only one aspect (either consumers or the environment) or lack detail in the economic links.
- Some appropriate use of economic terminology (e.g., negative externalities, incentives, cost).
- Some application to the context.

**Level 1 (1–2 marks):**
- Basic points about taxes, coffee, or pollution with limited or no economic analysis.
- Simplistic statements without logical links.

**Level 0 (0 marks):**
- No relevant content.

### Analysis of Taxing Single-Use Plastic Packaging

**Arguments for introducing a tax:**
* **Internalising the Externality:** A tax on single-use plastic packaging increases the cost of production for manufacturers. This shifts the supply curve to the left (from \(S\) to \(S + \text{tax}\)), increasing the market price and reducing the quantity demanded. This helps align the private cost with the social cost, reducing overconsumption and moving closer to the socially optimum level of output.
* **Incentive to Innovate:** Manufacturers face a financial incentive to redesign packaging or switch to recycled materials (above the 30% threshold) to avoid paying the tax.
* **Government Revenue:** The tax generates revenue for the government, which can be hypothecated (ring-fenced) to fund environmental cleanup initiatives or subsidise green alternatives.

**Arguments against a tax / Alternative policies:**
* **Inelastic Demand:** If firms have no viable alternatives to plastic packaging, they will pay the tax and pass the cost onto consumers in the form of higher prices. This is particularly harmful for low-income households (regressive effect) and might not significantly reduce plastic usage.
* **Measurement Problems:** It is extremely difficult for governments to calculate the exact monetary value of the negative externality, making it hard to set the tax at the correct level.
* **Subsidies as an Alternative:** Subsidising biodegradable alternatives makes eco-friendly packaging cheaper, encouraging a market-led shift. However, subsidies have an opportunity cost and require government funding.

**Conclusion:**
While a tax is a powerful tool to discourage plastic use and enforce the 'polluter pays' principle, it may not be sufficient on its own if alternatives are expensive or unavailable. Therefore, a tax is most effective when combined with subsidies for biodegradable packaging, providing both a 'push' away from plastic and a 'pull' towards sustainable alternatives.

### Level of Response Grid (9 Marks Total)

* **Level 3 (7-9 marks):** Detailed and focused analysis of the economic arguments for and against a plastic tax. Well-structured and logical chain of reasoning. Evaluative comments are well-supported and a clear, reasoned conclusion is provided. Excellent use of economic terminology (e.g., negative externalities, social costs, internalising the externality).
* **Level 2 (4-6 marks):** Developed analysis of some key points but may lack depth or precision. Some structure to the answer. Attempt at evaluation is made (comparing the tax to alternatives like subsidies), but it may be superficial or lack support. Good use of economic terminology.
* **Level 1 (1-3 marks):** Basic identification of points (e.g., taxes make things more expensive, pollution is bad). Limited or no analysis. Lacks structure. No clear evaluation or conclusion. Limited use of economic terms.

Inflation is defined as a sustained or persistent increase in the general (or average) price level of goods and services in an economy over a period of time, which leads to a fall in the purchasing power of money.

2 marks for a clear and accurate definition containing both key elements (sustained/persistent and general/average price level). E.g., 'A sustained rise in the general price level over time.' 1 mark for a partial definition that shows some understanding but lacks precision. E.g., 'When prices go up' or 'A continuous rise in prices.'

Inflation is defined as a sustained or persistent increase in the general (or average) price level of goods and services in an economy over a period of time, which leads to a fall in the purchasing power of money.

2 marks for a clear and accurate definition containing both key elements (sustained/persistent and general/average price level). E.g., 'A sustained rise in the general price level over time.' 1 mark for a partial definition that shows some understanding but lacks precision. E.g., 'When prices go up' or 'A continuous rise in prices.'

To calculate the weighted Consumer Prices Index (CPI) for Year 2:

1. Multiply the weight of each category by its Year 2 price index:
* Food and drink: \(35 \times 108 = 3780\)
* Transport: \(25 \times 112 = 2800\)
* Housing and utilities: \(40 \times 104 = 4160\)

2. Add these weighted values together:
\(3780 + 2800 + 4160 = 10740\)

3. Divide the total by the sum of the weights (100):
\(10740 / 100 = 107.4\)

Therefore, the Consumer Prices Index for Year 2 is 107.4.

Apply the following marks:
- 1 mark for correct method of multiplying weights by the price indices, e.g. showing at least two correct intermediate products (3780, 2800, or 4160).
- 1 mark for summing the weighted components correctly (10740).
- 1 mark for the correct final answer of 107.4.

Note: A correct answer of 107.4 (or 107.4%) with no working shown gains full 3 marks.

To correct the market failure of diesel pollution, the government can use a subsidy (a financial grant) to encourage clean alternatives. First, a subsidy reduces the cost of purchasing and operating electric vehicles for transport firms. Second, this shifts the supply curve for electric freight transport to the right, lowering the market price for eco-friendly deliveries. Third, consumers and firms will substitute away from polluting diesel transport towards electric transport. Fourth, as the usage of diesel trucks declines, the negative externalities (air pollution, health issues) are reduced, bringing the market closer to the socially optimal allocation of resources.

Level 3 (5-6 marks): Clear, logical, and detailed explanation of how a subsidy works in this context. Explains the mechanism (lower costs, shift in supply, lower price, increased quantity demanded) and links this directly to reducing diesel vehicle use and correcting the negative externality. Uses accurate economic terminology. Level 2 (3-4 marks): Explains the impact of the subsidy with some correct economic links (e.g. cheaper electric vehicles, more people buy them), but the chain of reasoning is incomplete or the link to correcting the negative externality is weak. Level 1 (1-2 marks): Offers a basic definition of a subsidy or a simple statement that it makes electric vehicles cheaper, with little or no economic analysis or application to the case study.

First, eliminating tuition fees reduces the private cost of entering the nursing profession. Second, this increases the economic incentive for students, causing an increase in the number of applicants for nursing courses. Third, this shifts the supply curve of qualified labor in the nursing sector to the right. Fourth, in the medium to long term, as these students graduate, the quantity of qualified nurses supplied increases at any given wage rate. Fifth, this directly addresses the shortage by filling the 25% vacancy gap in hospitals, improving the provision of healthcare services.

Level 3 (5-6 marks): Comprehensive explanation of the policy's transmission mechanism on the labor market. Clearly explains how reducing training costs increases the incentive to train, shifting the labor supply curve to the right and directly reducing the shortage of nurses. Uses precise labor market terminology. Level 2 (3-4 marks): Explains how free training attracts more people to become nurses and helps fill vacancies, but lacks a complete economic analysis (such as the shift in the supply of labor or the role of incentives). Level 1 (1-2 marks): Basic or superficial point made, such as stating that free training means more nurses, with no clear chain of economic reasoning.

### Model Response Outline:

1. **Introduction**:
* Define negative externalities: third-party costs created by private consumption or production decisions (e.g., air pollution, health issues, and traffic delays in Oakhaven).
* Explain that both policies aim to reduce the market failure associated with car use, but via different mechanisms.

2. **Analysis of Option 1 (Congestion Charge)**:
* **Mechanism**: It increases the private cost of driving in the town centre, internalising the negative externality. This shifts the market price of driving up, reducing quantity demanded.
* **Pros**: Directly targets polluters ('polluter pays' principle); generates tax revenue for the local government which can be reinvested into local services or infrastructure.
* **Cons**: It is a regressive measure that impacts low-income drivers more severely; if demand for driving is inelastic (due to poor alternative transit), it may act simply as a tax without significantly reducing congestion.

3. **Analysis of Option 2 (Subsidised Bus Travel)**:
* **Mechanism**: Reduces the price of a key substitute good. Lower bus fares make public transport more attractive relative to driving, shifting demand away from private cars.
* **Pros**: It is equitable, helping low-income groups; encourages a positive shift to cleaner public transport; reduces total vehicle emissions.
* **Cons**: High opportunity cost for the local government to fund the subsidy; if the bus network has poor coverage or is unreliable, car drivers may still refuse to switch despite the lower price.

4. **Evaluation and Synthesis**:
* Compare both options. Option 1 is a negative incentive (punishment) while Option 2 is a positive incentive (reward).
* **Judgment**: A combination of both might be the most effective strategy. The government could use the revenue generated from the congestion charge (Option 1) to fund the bus subsidy (Option 2), making the transition away from cars affordable and viable for all residents of Oakhaven.

### Marking Criteria (15 Marks Total)

* **Level 3 (11-15 Marks) - Strong, balanced evaluation and analysis**:
* Detailed analysis of both Option 1 and Option 2.
* Consistently accurate use of economic terminology (e.g., negative externalities, internalising, substitutes, opportunity cost).
* Clear, well-structured chains of reasoning showing how both policies address market failure.
* A balanced, well-justified final judgment recommending one option or a combined approach based on the Oakhaven context.

* **Level 2 (6-10 Marks) - Reasonable analysis and some evaluation**:
* Good explanation of at least one policy, with some attempt to analyze the second.
* Some correct application of economic concepts and terms.
* The response shows some evaluation of the pros and cons, but the final conclusion may be weak, unbalance, or lacking support from the case study.

* **Level 1 (1-5 Marks) - Basic knowledge and description**:
* Descriptive points about traffic, pollution, or buses with little economic analysis.
* Limited or inaccurate use of economic terminology.
* Lacks a coherent evaluation or justified decision.

### Application Points to Accept:
* Mention of pressure on healthcare due to respiratory illnesses.
* Discussion on the specific price levels (\(£10\) charge vs \(£1\) bus fare).
* Practical considerations of Oakhaven's local government budget.