Practice Marking Like an Examiner

Understanding how examiners mark answers is one of the most powerful ways to improve your own exam technique. Practice marking this sample answer and compare your mark with the examiner's feedback.

📝 Practice Question

Explain two reasons why firms may experience economies of scale. (6 marks)

Student Answer to Mark

Firms experience economies of scale because they can buy in bulk. When they produce more, they can negotiate better prices with suppliers, which reduces their average costs.

Another reason is specialization. Larger firms can have workers focus on specific tasks, making them more efficient and productive.


Mark Scheme

For each reason (3 marks each):

  • 1 mark: Identification of the economy of scale
  • 1 mark: Explanation of how it works
  • 1 mark: Link to reducing average costs

Possible reasons include:

  • Purchasing economies (bulk buying)
  • Technical economies (efficient machinery)
  • Managerial economies (specialist managers)
  • Financial economies (better loan rates)
  • Marketing economies (spread ad costs)

Examiner Feedback

Examiner's Mark: 5/6

Reason 1 (Purchasing): 3/3 marks ✅
Clear identification, good explanation, and link to average costs.

Reason 2 (Specialisation): 2/3 marks ⚠️
Identified and explained well, but didn't explicitly link to "reducing average costs".

💡 Tip: Always ensure each point explicitly connects back to the question's requirement.