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What is a Product Life Cycle? 4 Stages in a Product Life Cycle, Examples, Pdf

If you look at any new or old appliance in your home, you will notice that the product is still in the market or it has discontinued by the manufacturer. That means you are experiencing different stages of the product life cycle.

When a product gets into the market, it has a life cycle that carries it from being new and exciting to eventually being retired out of circulation in the market. This process happens continuously to every product into the market, from the launching the product all the way through decline stages and eventual discontinuation. But there is some product keep circulating into the market for a long time.

Product Life Cycle

What is a Product Life Cycle?

The term product life cycle refers to the time period a product is introduced to consumers into the market until it’s removed from the market. The product life cycle is the process almost every product goes through from when it is first introduced into the market until it is removed from the market.

Some of the products may stay in a long maturity state, all products eventually phase out of the market due to several factors including saturation, increased competition, decreased demand and dropping sales.

This concept is used by management and by the marketing department of companies as a factor in deciding when it is an appropriate time to increase advertising, reduce prices, expand to new markets, or redesign packaging. The life cycle of a product has 4 stages- introduction, growth, maturity, and decline stage.

4 stages of the product life cycle

There are four stages that are generally accepted in a product life cycle-

  1. Introduction stage,
  2. Growth stage,
  3. Maturity stage,
  4. Decline stage.
product life cycle
Fig: Product life cycle Diagram

Introduction stage

After successfully developing a product first stage is the introduction, where the product is being launched into the market. When a new product is introduced, it is often a high-stakes time in the product’s life cycle – although it does not necessarily make or break the product’s ultimate success. 

 This stage basically includes a substantial investment in advertising and marketing focused on making consumers aware of the product’s features and its benefits. The market for the product is not competitive initially and also the company spends initially on the advertisement and uses various other tools for promotion.

In the introduction stage, the company is first able to get a sense of how consumers respond to the product, if they like it or not and how successful it may be. It is also a heavy-spending period for the company with no guarantee that the product will pay for itself through sales. However, in the introduction stage company want to attract customer’s attention as much as possible and confirm the product’s initial distribution, the company does not need to worry about the competition generally as the products are new.


  1. cost of the product is very high
  2. slow sales volumes during this stage
  3. little or no competition
  4. demand has to be created by promotion
  5. customers have to be promoted to buy the product
  6. makes a little revenue at this stage

Growth stage

After successfully introducing the new product a gradual rise in its sales curve can be seen. At some point in this rise, a significant increase in consumer demand occurs and sales started to take off.

Other companies become aware of the product and its area in the market, which is beginning to attract attention and increasingly pull in revenue.  If competition for the product becomes high, the company have to heavily invest in advertising and promotion to beat out competitors. As a result of the product sales growth, the market itself tends to expand. 

As the market expands, more competition often drives prices down to make the specific products competitive.  However, the product is visibly available in the market, and the product has habitual consumers. More new customers are becoming aware of the product and trying it. If the customers are becoming satisfied with the product they will buy it again and again. 


  1. sales volume starts to increase significantly
  2. profitability increases
  3. awareness of the product increases
  4. competition begins to increase with new companies in establishing market
  5. increased competition leads to decreases in price

Maturity stage

This is the most profitable stage, as the production volume increasing, the costs of producing and marketing decline. Also,  its sales tend to slow – that indicating a largely saturated market. At this point, sales can even start to drop. Companies will reduce the marketing and starts to develop new or altered products to reach different market segments.

Given the highly saturated market, it is typically in the maturity stage of a product that less successful competitors are pushed out of competition -is called the “shake-out point”.  The brand or the product differentiation via rebating and give discount in price to support in recalling the outlet distribution.

Longer or shorter maturity stage depending on the product. For some brands, the maturity stage is very drawn out, like Coca-Cola.


  1. production costs are decreased as a result of production volumes increasing and experience curve effects
  2. sales volume at the peaks and market saturation is reached
  3. increase in the number of competitors entering the market
  4. prices of the product tend to drop due to the proliferation of competing products
  5. feature and benefits diversification is emphasized to maintain or increase market share
  6. industrial profits start to go down as sales go down

Decline stage

Although companies will hardly try to keep the product alive in the maturity stage as long as possible, the decline stage for every product is unavoidable because of the deletion of the product from the market. The product at this stage may be kept but there should be a fewer advertisement.

In this stage of the product life cycle, product sales drop rapidly and consumer behaviour changes as there is decreasing demand for the product. The product loses more and more market share, and competition tends to cause sales to decline. 

Eventually, the product will be retired out of the market unless it have loyal customers or it is able to redesign itself to remain in-demand.


  1. product costs become counter-optimal
  2. the number of sales declines significantly
  3. prices, profitability diminishes
  4. profit becomes more a challenge of production, distribution efficiency than increased sales

example of product life cycle


typewriter-example of product life cycle

When the typewriter first introduced in the late 19th century, typewriters grew in popularity as a technology that improved ease and writing accuracy. However, new electronic technology like computers, laptops and even mobile has quickly replaced typewriters – causing their revenues and demand to drop off. 

Typewriters could be considered at the very tail end of their decline phase  – with a few sales and rapidly decreased demand. Now, the modern world almost exclusively uses computers, laptops or smartphones to type – which in turn are experiencing a growth or maturity phase of the product life cycle. 


VCR-example of product life cycle

Many of us grew up watching videos using VCR (video Cassette Recorders).

We can now say the video cassette recorder (VCR) to the list of gone because it is almost dead. T, Funai Corp. of Japan announces that it is going to stop the production of VCR due to its demand decrease. Funai was the last manufacturer of VCR.

VCR has come into existence in 1950. In the year 1950 and they could sell each unit to $50000 and it gets the utmost 100 orders in the very first week.

But as streaming service like Netflix, Amazon, etc came into the market VCR costs as well demand declining people start shifting towards Netflix and amazon prime since it captures people’s attention as well it was cheap.

Download Product Life Cycle Pdf

Product Life Cycle management

Product life cycle management (PLM) refers to the effective handling of the product while it goes through the Product life cycle. Handling includes production of the goods and making marketing strategies. Product planning has a huge role in Product life cycle management. The concept of product life cycle helps inform business decision-making, from pricing and marketing to expansion or cost-reduction.

Effective product life cycle management brings together the many other companies, departments, and employees involved with the product’s manufacturing to streamline their activities, with the ultimate goal of producing a product that beats its competitors, is highly profitable, and lasts as long as consumer desire and technology permit.

As a technology adoption, PLM software helps businesses to develop new products and bring them into the market. The software makes it easy to track and share data along the product value chain, from the product design through manufacturing, supply chain management and operations, and asset maintenance.

Sukanta Maiti

I am a Mechanical Engineer by profession, Blogger, and Youtuber by passion. I have been in the engineering field since 2014. I am passionate about sharing all my knowledge about engineering, management, and economics to my readers.

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