What is a product life cycle?
The product life cycle (PLC) is a model that describes the stages a product moves through in the market: introduction, growth, maturity, and decline. It’s a fundamental marketing principle—and it explains why some products vanish from store shelves while others stick around for decades.
underpins the whole cycle. It happens before a product is developed and gets revisited at every stage, helping businesses decide when to invest in a product, scale back production, or introduce something new. Understanding both keeps your products relevant and profitable.
This article covers the four stages of the product life cycle, strategies for each stage, and how and when market research informs decisions throughout the process.
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What are the stages of the product life cycle?
A product goes through four distinct phases over its lifetime:
- Introduction
- Growth
- Maturity
- Decline
Before you introduce a product to the market, you need to research that market. Put simply, market research is a step before the product cycle begins. Let’s look at each of the four stages in detail, plus the pre-stage of market research.
Market research
When companies have a new concept they want to produce and sell, it’s rare for them to simply develop it and send it to market without research.
This research involves:
- Looking into competitors
- Reviewing market history
- Identifying opportunities
- Developing prototypes to test with real-life would-be customers
The goal of this step is to verify there’s ample opportunity for success, eliminate as much risk as possible, and enter the product life cycle with confidence.
Introduction stage
During this crucial stage, the product is first introduced to potential customers. The company must generate interest, build , and establish a market presence. The introduction stage focuses on educating consumers about the product and its benefits while establishing distribution channels to make it easily accessible.
Pricing is one of the most important elements of the introduction stage. Companies must set an introductory price that balances attracting sales with recouping the costs of , research, and marketing.
Pricing benefits from work done in the market research phase—understanding how competitors price similar products. The price should be competitive and reflect the product’s exclusivity or novelty. A high price may deter potential customers, while a low price may create the impression of low quality or value.
Marketing and promotion are essential during the introduction stage. Companies must create buzz and generate interest through tactics like social media campaigns, influencer marketing, and product demonstrations. With careful planning and execution, the introduction stage sets the product on a path to growth and profitability in later stages.
Examples of products at the introduction stage include:
- Augmented reality glasses
- Humanoid robots
- AI-powered wearable devices
Growth stage
The growth stage is characterized by rising sales and profits. The product gains wider market acceptance, and consumer awareness and interest continue to grow. Following the histories of similar products identified in the market research phase helps set realistic expectations. The company may also introduce new variations or improved versions of the product to meet customer needs.
Marketing and promotion remain important during the growth stage, but the focus shifts to increasing market share and brand loyalty. The company may increase production and distribution to meet rising demand and expand the product’s availability. Pricing may also be adjusted—up or down—to capitalize on the product’s success depending on market conditions.
As the product gains acceptance, competition increases, and the company may face challenges from new entrants or established competitors. Market research comes back into play here, helping the company differentiate the product or improve its features to stay ahead.
The growth stage is a positive period, but it’s also a time of increased competition and evolving customer needs. The company must continue to:
- Invest in market research, marketing, and promotion
- Innovate the product
- Adjust to maximize profits and maintain growth
Examples of products at the growth stage include:
- Electric vehicles
- AI assistants and chatbots
- Smart home devices like Amazon Echo and Google Home
Maturity stage
The maturity stage follows the introduction and growth stages. The product has gained wide acceptance, and sales growth has slowed. Competitors have entered the market, and the focus shifts from market penetration to defending market share.
During the maturity stage, the company usually aims to maintain market share and extend the product life cycle as long as possible. They achieve this through marketing efforts such as:
- Advertising
- Sales promotion
- Price competition
Maintaining market share would be impossible without constant analysis of the market itself. The company may also differentiate its product from competitors’ offerings by introducing new features or improvements.
Production and distribution processes are usually well-established and streamlined at this stage. The company has built relationships with suppliers and distributors, and economies of scale have kicked in. This means lower costs and higher profits.
The maturity stage poses challenges, though. The market becomes saturated, and the product may no longer command premium prices. Competition intensifies, and consumers start looking for alternatives. If the company fails to innovate and differentiate, sales decline and the product enters the decline stage.
Examples of products at the maturity stage include:
- Smartphones like Apple’s iPhone and Samsung’s Galaxy series
- Laptop computers like Dell and Lenovo
- Soft drinks like Coca-Cola and Pepsi
- Streaming services like Netflix and Disney+
Decline stage
The decline stage is the fourth and final stage of the product life cycle. The product experiences falling sales and may eventually become obsolete. Reasons for decline include:
- Changing consumer preferences
- Increased competition
- Technological advancements
As sales decline, the company may discontinue the product or reduce marketing efforts. It may also liquidate the remaining inventory, sell the product to another company, or license it for a fee. Alternatively, the company may attempt to reposition or revitalize the product through modifications, price reductions, or targeted marketing campaigns.
Reversing a product’s decline is difficult, especially if it’s outdated or facing strong competition from newer, more innovative products. Based on market research, the company must decide whether to keep investing or cut its losses and allocate resources elsewhere.
Not all products go through the decline stage. Some, especially in the technology industry, get replaced by newer versions before reaching it. Others, such as necessities like food and clothing, may have relatively stable demand over time and never decline.
Examples of products at the decline stage include:
- Film cameras
- DVD players and discs
- Cable TV subscriptions
Product life cycle vs. BCG matrix
Like the product life cycle, the Boston Consulting Group (BCG) matrix is a popular framework used in market research to analyze and manage products in a company’s portfolio. Both models focus on product performance, but they differ in approach and purpose.
As we’ve seen, the PLC model divides a product’s life into four stages:
- Introduction
- Growth
- Maturity
- Decline
The BCG matrix categorizes a company’s products based on their market share and growth rate. The four categories are:
- Stars: products with high market share and high growth rates
- Cash cows: products with a high market share and low growth rates
- Question marks: products with low market share and high growth rates
- Dogs: products with a low market share and low growth rates
Both frameworks offer valuable insights into a company’s product strategy. The PLC model can help marketers identify when to:
- Introduce new products
- Invest in marketing
- Retire a product
The BCG matrix helps companies allocate resources based on the potential of their products. Products in the ‘star’ category require continued investment to maintain their growth, while cash cows generate profits that can fund other products.
Why is the product life cycle important?
Understanding the product life cycle helps businesses manage their product offerings and optimize their marketing efforts. Here are some specific reasons why it matters:
Better understanding of product performance
The product life cycle provides a framework for understanding a product’s performance over time, from introduction through decline. This understanding helps businesses make informed decisions about the product’s future.
Strategic planning
Understanding the product life cycle lets businesses plan their marketing and promotional strategies. Companies can use the framework to identify the right marketing mix for each stage.
Cost-effective resource allocation
By understanding the product life cycle, businesses can allocate resources more efficiently. They can focus on products in the growth or maturity phase, and decide whether to invest in new products or retire existing ones.
Benchmark for comparison
Running market research based on the product life cycle gives businesses a benchmark for comparing the performance of different products. This helps them identify and make strategic decisions about product development.
Identifying opportunities
The product life cycle can surface new opportunities. Businesses may discover new markets for mature products or recognize the need for innovation to extend a product’s life cycle.
What are the limitations of using the product life cycle?
The product life cycle model is a useful framework for understanding a product’s typical trajectory, but it has limitations.
The good news: when done well, market research can fill these gaps. Hitting a limitation with the product life cycle is often a cue to frame the questions you want your market research to answer. The two work together to align your company within the market while building predictable futures based on data-backed strategies.
Here are some key limitations of the product life cycle model:
Not all products follow the same life cycle
The PLC model provides a general framework, but not all products follow the same trajectory. Some have a much longer or shorter life cycle than others, and some never experience a decline phase at all.
Limited predictive power
The PLC model can be useful for predicting short-term trends in sales and profits, but it’s less reliable for long-term trends or the success of new products. Other factors—changes in technology, consumer behavior, and competition—can significantly impact a product’s success.
Ignores external factors
The PLC model focuses on internal factors that influence a product’s life cycle, such as changes in marketing and product features. It doesn’t consider external factors that can significantly affect a product’s success, such as:
- Changes in the economy
- Social trends
- Regulatory environments
Limited practical application
The PLC model provides a high-level understanding of a product’s life cycle, but it may not deliver the detailed insights needed for strategic business decisions. Other tools, such as market research and , may be necessary to fully understand a product’s potential and its .
What factors impact a product’s life cycle?
Several factors can alter a product’s performance and position in the product life cycle, all of which can be monitored with market research. These include:
- Market competition: A highly competitive market with many similar products can shorten a product’s life cycle, as consumers have more options and may switch to a competitor’s product.
- Technological advancements: As new technologies emerge, they can render existing products obsolete or less desirable, shortening the product life cycle. On the flip side, new technology can enable new product features and functionality, extending a product’s life cycle.
- Consumer preferences: Consumer preferences and needs change over time. A popular product that meets consumer needs today may become irrelevant tomorrow, resulting in a shorter life cycle.
- Economic factors: Changes in disposable income, inflation, and market conditions—or global events like pandemics—can impact a product’s life cycle. During a downturn, consumers may cut spending, reducing demand for certain products and shortening their life cycle.
- Product quality: A high-quality product that meets customer needs and provides an excellent user experience can extend the product’s life cycle, while a low-quality one can significantly shorten it.
- : New features, functionality, and design can extend a product’s life cycle by increasing its relevance and meeting changing consumer needs.
- Marketing and branding: Effective marketing and branding can extend a product’s life cycle by increasing brand awareness and .
Understanding these factors and their impact helps businesses make informed decisions about product development, marketing, and pricing strategies.
Ways to lengthen your product’s life cycle
Businesses face the challenge of keeping their products relevant and profitable for as long as possible. One way to achieve this is by lengthening the product life cycle. Here are some ways to stretch out your PLC:
- Continuously innovate: Improving features, functionality, or design helps maintain the product’s relevance and keeps up with consumers’ changing needs. It also addresses issues that arise with the product over time.
- Expand the product line: Expanding the with new products or variants keeps the product fresh and relevant. It also lets the company target different consumer segments and address their specific needs.
- Improve marketing and promotion: Stronger marketing and promotion increase brand awareness and product visibility, making it more likely you’ll attract new customers and retain existing ones.
- Build a loyal customer base: Exceptional customer service, product quality, and support increase the likelihood of repeat business and positive word-of-mouth recommendations.
- Offer incentives and rewards: Discounts, loyalty programs, or product bundles encourage customers to keep buying the product.
- Expand distribution channels: Reaching new markets and regions increases your product’s reach and introduces it to new customers.
- Embrace sustainability: Positioning the product as environmentally friendly and socially responsible appeals to consumers who value these attributes.
Lengthening a product’s life cycle is an essential strategy for businesses looking to maximize profits and maintain a competitive edge.
The bottom line
Using market research to understand the product life cycle is essential for any business that wants to remain competitive and profitable. By recognizing the different stages of a product’s life cycle and adapting strategies accordingly, businesses can prolong the life of successful products and minimize losses on unsuccessful ones.
By focusing on consumers’ needs and preferences at each stage of the life cycle, companies can create products that meet evolving demand and stay relevant in a changing marketplace.
Ultimately, a thorough understanding of the product life cycle helps businesses make more informed decisions about product development, marketing, and distribution—leading to greater success and sustainability in the long run.
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