
Useful for discussion regarding fixed and variable costs – https://www.bbc.co.uk/news/business-46112503
Where to find it in the AS/AL Economics specification:
Edexcel spec reference 3.3.2 average variable cost
AQA spec reference 4.1.4.4 The difference between fixed and variable costs
OCR spec reference P10 distinguish between the short run and long run in terms of fixed and variable factors