Pearson Edexcel · A-Level · Economics B
Course version: 9EB0 · Version from Sept 2015
C) Implications of under- and over-utilisation of capacity
Full specification wording
Capacity utilisation: c) Implications of under- and over-utilisation of capacity
Capacity utilisation measures the proportion of maximum possible output a business is currently producing.
Checked against the Pearson Edexcel 9EB0 specification (opens in a new tab) on .
- Point 3 of 4
- 4 key terms
Study notes
From the checked teaching notes for this specification point.
The idea
Capacity utilisation measures the proportion of maximum possible output a business is currently producing. Under-utilisation (spare capacity) implies higher fixed costs per unit, reducing profit margins and potentially leading to a loss of competitiveness. However, it allows flexibility to accept sudden new orders. Over-utilisation (operating above 100% capacity) implies staff are overworked, machinery is stressed, and quality may suffer due to rushed production.
For example: A factory running at 110% capacity by using excessive overtime might face higher unit costs due to premium wage rates and frequent machine breakdowns, ultimately damaging its reputation if defective goods reach customers.
What earns the marks
- Under-utilisation increases average fixed costs, leading to higher total unit costs.
- Spare capacity provides the flexibility to meet unexpected increases in demand without delay.
- Over-utilisation can lead to increased average costs due to overtime pay and higher maintenance costs.
- Operating at or above maximum capacity often causes staff demotivation, burnout, and higher labour turnover.
- Over-utilisation increases the risk of quality control failures and machine breakdowns.
Common mistakes and how to put them right
Assuming under-utilisation always reduces total costs.
Put it right: While total variable costs may fall, average fixed costs rise, increasing the cost per unit.
Believing 100% capacity utilisation is the ideal long-term target.
Put it right: Operating at 100% leaves no room for maintenance or sudden demand spikes; around 90% is often preferred.
Confusing over-utilisation with high productivity.
Put it right: Over-utilisation refers to stretching resources beyond sustainable limits, which can actually reduce labour productivity due to fatigue.
Exam tips
- Always link under-utilisation to its effect on average fixed costs and profit margins.
- When evaluating over-utilisation, discuss the long-term impact on brand reputation if quality drops.
- Use the context provided in the data response to decide whether spare capacity is a strategic advantage or a financial burden.
Try the lesson
The start of the Capacity utilisation: c) Implications of under- and over-utilisation of capacity lesson, made from checked teaching notes for this specification point.
Have a go first
Which of the following is a likely consequence for a manufacturing business operating with significant under-utilisation of capacity?
Listen
Capacity utilisation measures the proportion of maximum possible output a business is currently producing. Under-utilisation (spare capacity) implies higher fixed costs per unit, reducing profit margins and potentially leading to a loss of competitiveness. However, it allows flexibility to accept sudden new orders. Over-utilisation (operating above 100% capacity) implies staff are overworked, machinery is stressed, and quality may suffer due to rushed production. For example, a factory running at 110% capacity by using excessive overtime might face higher unit costs due to premium wage rates and frequent machine breakdowns, ultimately damaging its reputation if defective goods reach customers. A strong answer earns marks for these points. Under-utilisation increases average fixed costs, leading to higher total unit costs. Spare capacity provides the flexibility to meet unexpected increases in demand without delay. Over-utilisation can lead to increased average costs due to overtime pay and higher maintenance costs. Operating at or above maximum capacity often causes staff demotivation, burnout, and higher labour turnover. A common slip: Assuming under-utilisation always reduces total costs. Instead, While total variable costs may fall, average fixed costs rise, increasing the cost per unit. Exam tip: Always link under-utilisation to its effect on average fixed costs and profit margins.
See it
Key words
Say what each word means before you turn the card.
Efficiency
Try answering aloud or in your head before turning the card.
Cost management
Try answering aloud or in your head before turning the card.
Quality control
Try answering aloud or in your head before turning the card.
Flexibility
Try answering aloud or in your head before turning the card.
See every definition
- Efficiency
- Operating at or above maximum capacity can reduce labour productivity due to fatigue, so over-utilisation is not the same as high productivity.
- Cost management
- Under-utilisation raises average fixed costs and so total unit costs, while over-utilisation raises average costs through overtime pay and higher maintenance costs.
- Quality control
- Over-utilisation increases the risk of quality control failures, and rushed production may mean defective goods reach customers.
- Flexibility
- Spare capacity provides the flexibility to meet unexpected increases in demand without delay.
Label the diagram
Some boxes have lost their names. Pick the right name for each number.
1Box 1
2Box 2
3Box 3
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