Businesses should manage their products carefully over time to ensure that they deliver products that continue to meet customer wants. The process of managing groups of brands and product lines is called portfolio planning.
The stages through which individual products develop over time is called commonly known as the "Product Life Cycle".
The classic product life cycle has four stages (illustrated in the diagram below): introduction; growth; maturity and decline
Introduction Stage
At the Introduction (or development) Stage market size and growth is slight. it is possible that substantial research and development costs have been incurred in getting the product to this stage. In addition, marketing costs may be high in order to test the market, undergo launch promotion and set up distribution channels. It is highly unlikely that companies will make profits on products at the Introduction Stage. Products at this stage have to be carefully monitored to ensure that they start to grow. Otherwise, the best option may be to withdraw or end the product.
Growth Stage
The Growth Stage is characterised by rapid growth in sales and profits. Profits arise due to an increase in output (economies of scale)and possibly better prices. At this stage, it is cheaper for businesses to invest in increasing their market share as well as enjoying the overall growth of the market. Accordingly, significant promotional resources are traditionally invested in products that are firmly in the Growth Stage.
Maturity Stage
The Maturity Stage is, perhaps, the most common stage for all markets. it is in this stage that competition is most intense as companies fight to maintain their market share. Here, both marketing and finance become key activities. Marketing spend has to be monitored carefully, since any significant moves are likely to be copied by competitors. The Maturity Stage is the time when most profit is earned by the market as a whole. Any expenditure on research and development is likely to be restricted to product modification and improvement and perhaps to improve production efficiency and quality.
Decline Stage
In the Decline Stage, the market is shrinking, reducing the overall amount of profit that can be shared amongst the remaining competitors. At this stage, great care has to be taken to manage the product carefully. It may be possible to take out some production cost, to transfer production to a cheaper facility, sell the product into other, cheaper markets. Care should be taken to control the amount of stocks of the product. Ultimately, depending on whether the product remains profitable, a company may decide to end the product.
Examples
Set out below are some suggested examples of products that are currently at different stages of the product life-cycle:
INTRODUCTION
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GROWTH
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MATURITY
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DECLINE
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Third generation mobile phones
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Portable DVD Players
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Personal Computers
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Typewriters
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E-conferencing
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Email
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Faxes
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Handwritten letters
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All-in-one racing skin-suits
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Breathable synthetic fabrics
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Cotton t-shirts
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Shell Suits
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iris-based personal identity cards
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Smart cards
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Credit cards
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Cheques books
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