6.6 Product life-cycle
As we now understand what a product is, we are able to move on to the realisation that products do in fact have life-cycles with distinct stages. Somewhat like every person experiences a life-cycle between birth and death, so do products experience a life-cycle from introduction into the market to decline and withdrawal. You need to be aware of the characteristics of each stage, but, remember, the length of each stage varies from product to product, and from market to market.
The product life-cycle can be considered at two levels, at the industry level and at the level of individual products. Therefore there is a life-cycle for a product in general in an industry and life-cycles of the same products as marketed by different companies.
Besides the initial product development, your text indicates four stages in the product life-cycle:
- market introduction
- market growth
- market maturity
- sales decline.
Table 6.1 identifies typical characteristics of these different stages for you.
Table 6.1 Summary of product life-cycle characteristics, objectives and strategiesConsider this
Consider for example, the various types of cargo vessels that have been developed this century. Which of them are still in the growth stage and which are in maturity or decline?
Introduction |
Growth |
Maturity |
Decline |
|
Characteristic |
Low sales |
Rapidly rising sales |
Peak sales |
Declining sales |
Marketing Objectives |
Create product awareness and trial |
Maximize market share |
Maximize profit while defending market share |
Reduce expenditure and milk the brand |
Strategies |
Offer a basic product |
Offer product, extensions, service, warranty
|
Diversify brand and models |
Phase out weak items |
Price |
Use cost-plus |
Price to penetrate market |
Price to match or best competitors |
Cut price |
Distribution |
Build selective distribution |
Build intensive distribution |
Build more intensive distribution |
Go selective: phase out unprofitable outlets |
Advertising |
Build product awareness among early adopters and dealers |
Build awareness and interest in the mass market |
Stress brand differences and benefits |
Reduce to level needed to retain hard-core loyals |
Sales Promotion |
Use heavy sales promotion to entice trial |
Reduce to take advantage of heavy consumer demand |
Increase to encourage brand switching |
Reduce to minimal level |
Source: Kotler et al. (2004, p. 468)
The product life-cycle can also be presented graphically to help understand the four stages and the impact of sales over time. Figure 6.3 does this, starting with the traditional shape of the life-cycle in the graph in the top left-hand corner. The remaining graphs remind us that the product life-cycle varies a lot in terms of how long the life-cycle lasts and the shape it takes.

Figure 6.3 Different product life-cycle patterns
Source: based on Quester et al.(2004, p. 302)
Activity 6.5
Consider Figure 6.3 above
- Write down brief descriptions of each of the product life-cycles as represented by each of the graphs.
- Provide an example of a product which you think represents each of these forms of the product life-cycle.
Turn now to the next reading to review what your texts have to say about the stages and length of product life-cycles.
In your text
Kotler et al. (2004) Chapter 12, pp. 460-469, 'Product life-cycle strategies'.
The diffusion of innovations or the adoption of new products is an interesting process in the life-cycle of a product. Innovations and new products mean, of course, that previous services or products become obsolete. Most people would agree that technological obsolescence is inevitable and beneficial, but planned obsolescence is a controversial area. Yet, even though we deplore style obsolescence, we tend to conform.
It seems, however, that for many years, ports in Australia resisted technological and management innovation. The ports, their management and unions have been, on the whole, laggards when it came to initiating or accepting change, and the country has paid a heavy price for that attitude.
Consider this
Why do you think Australians resisted this change in earlier decades and what price have they paid since doing so? Of the five categories of people ¾ what do you see yourself as in regard to personal consumer goods?