Product Life Cycle Explained – O Level Business Studies (7115 / IGCSE 0450)
What Is the Product Life Cycle?
The Product Life Cycle (PLC) describes the different stages a product goes through from its introduction to its decline in the market.
Most products follow a life cycle because customer demand changes over time.
The product life cycle has four main stages:
Introduction
Growth
Maturity
Decline
1. Introduction Stage
This is the stage when the product is first launched into the market.
At this stage:
Sales are low
Promotion costs are high
Profits may be very low or negative
Businesses must invest in advertising and promotion to create awareness.
Example:
A company launching a new smartphone model.
2. Growth Stage
During the growth stage, the product becomes more popular.
At this stage:
Sales increase rapidly
Profits begin to grow
Competitors may enter the market
Businesses may expand production to meet increasing demand.
3. Maturity Stage
In the maturity stage, the product reaches its highest level of sales.
At this stage:
Market becomes very competitive
Sales growth begins to slow down
Businesses focus on maintaining market share
Companies may use promotions or product improvements to stay competitive.
4. Decline Stage
In the decline stage, demand for the product begins to fall.
This may happen because:
New technologies appear
Customer preferences change
Better products enter the market
Businesses may decide to:
Reduce production
Improve the product
Remove the product from the market
Product Life Cycle Diagram
The product life cycle is often shown as a curve representing sales over time.
Sales increase during growth, reach their peak at maturity, and then decrease during decline.
Example of a Product Life Cycle
Consider a DVD player.
Introduction: When DVD players were first introduced
Growth: Demand increased rapidly
Maturity: Most households owned one
Decline: Streaming services replaced DVD players
Why Businesses Study the Product Life Cycle
Understanding the product life cycle helps businesses:
Plan marketing strategies
Forecast sales trends
Develop new products
Extend the life of existing products
Exam Tip (Cambridge Business)
Students may be asked to:
Define the product life cycle
Explain the four stages
Apply the concept to real products
Always explain how sales and profits change at each stage.
Practice Question
Define the product life cycle. (2 marks)
Answer
The product life cycle describes the stages a product goes through from its introduction to its decline in the market.
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