Product and the product life cycle
The product life cycle describes the sales pattern a product typically follows over time, in four stages: introduction, growth, maturity and decline, with sales rising through growth, peaking at maturity and falling during decline as interest fades.
Method
- Learn the four stages and the shape of the sales curve: low sales rising slowly in introduction, rapid sales growth in growth, sales peak and plateau in maturity, then falling sales in decline.
- Learn the cash flow and profit pattern: often negative cash flow in introduction due to high development and launch costs against low sales, with profit typically first appearing during growth and peaking around maturity.
- Learn how the marketing mix typically changes at each stage: heavy promotion and skimming or penetration pricing in introduction; widening distribution and growing promotion in growth; differentiation or extension strategies and competitive pricing in maturity; withdrawal or cost-cutting in decline.
- Practise reading a product life cycle graph: identify the stage from the shape of the curve and the specific point being asked about.
- Learn that not all products follow the same length or shape of cycle: fashion products can have very short cycles, while some established brands extend maturity for decades.
- For 'explain' questions on marketing decisions at a stage, name the stage's characteristic, e.g. declining sales, plus the linked marketing action and its purpose.
- Link forward to extension strategies (BUS.MK9) as the way a business tries to prevent decline once maturity ends, without duplicating that content in this topic.
Worked example
A toy manufacturer's sales data for one product line, RoboPup, is: Year 1, 5,000 units; Year 2, 40,000 units; Year 3, 95,000 units; Year 4, 98,000 units; Year 5, 60,000 units. Identify which stage of the product life cycle RoboPup was most likely in during Year 4, and recommend one appropriate marketing mix action for that stage, with a reason.
- Compare sales growth rates: Year 1 to Year 2 nearly 8 times higher (introduction moving into growth); Year 2 to Year 3 more than doubles (growth); Year 3 to Year 4 sales only rise slightly, from 95,000 to 98,000, showing sales levelling off.
- This levelling off, after rapid growth, is the characteristic pattern of the maturity stage.
- At maturity, sales growth has slowed and competitors are likely to have entered the market, so a business typically needs an extension strategy or increased promotion to defend its market share.
- Recommend a product variation, such as a new colour or accessory pack for RoboPup, to refresh customer interest, because this can extend the maturity stage and delay the fall in sales seen in Year 5.
- Note Year 5's fall to 60,000 units confirms decline had begun, supporting the conclusion that Year 4 was the peak of maturity just before decline set in.
Practice questions
Try each question, then tap to reveal the answer.
Q1Name the four stages of the product life cycle in order.Show answer
Answer: Introduction, growth, maturity, decline.
Q2During which stage of the product life cycle are sales typically at their highest?Show answer
Answer: Maturity - sales peak and plateau during maturity, before falling in decline.
Q3Why is cash flow often negative during the introduction stage?Show answer
Answer: Because development and launch costs, such as product design and initial promotion, are high while sales, and therefore revenue, are still low.
Q4State one marketing mix change a business might make during the decline stage.Show answer
Answer: Reduce the price to clear remaining stock, cut promotional spending, or withdraw the product from some outlets or markets.
Q5What shape does a typical product life cycle sales graph take?Show answer
Answer: A line that rises slowly, then rises steeply, then levels off, then falls.
Q6Give one reason a fashion product might have a shorter product life cycle than a household appliance.Show answer
Answer: Fashion products are more affected by changing trends and consumer tastes, so demand can fall away quickly once a style goes out of fashion.
Q7True or false: every product follows the product life cycle at the same speed.Show answer
Answer: False - the length of each stage varies considerably between products.
Exam-style questions
Written in the style of a GCSE Business exam paper, with a full mark scheme.
Explain ONE reason why a business might increase its promotional spending during the growth stage of the product life cycle.
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GreenBrew is a small company selling a range of herbal iced teas. Sales have plateaued over the last two years after several years of rapid growth, and two large drinks companies have recently launched competing herbal iced teas. GreenBrew is deciding whether to invest heavily in an extension strategy, such as a new flavour range, or to accept the product may be entering decline and focus its resources on developing a new product instead. Evaluate which option GreenBrew should choose.
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See real GCSE Business past-paper questions, with official mark schemes →
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