The product life cycle theory is used to comprehend and analyze various maturity stages of products and industries. Product innovation and diffusion influence long-term patterns of international trade. This term product life cycle was used for the first time in 1965, by Theodore Levitt in a Harvard Business Review article: "Exploit the Product Life Cycle".
Anything that satisfies a consumer's need is called a 'product'. It may be a tangible product (clothes, crockery, cars, houses, gadgets) or an intangible service (banking, health care, hotel service, airline service). Irrespective of the kind of product, all products introduced into the market undergo a common life cycle. To understand what this product life cycle theory is all about, let us have a quick look at its definition.
Definition
A product life cycle refers to the time period between the launch of a product into the market till it is finally withdrawn from it. In a nut shell, product life cycle or PLC is an odyssey from new and innovative to old and outdated! This cycle is split into four different stages which encompass the product's journey from its entry to exit from the market.
Stages of the Product Life Cycle
This cycle is based on the all familiar biological life cycle, wherein a seed is planted (introduction stage), germinates (growth stage), sends out roots in the ground and shoots with branches and leaves against gravity, thereby maturing into an adult (maturity stage). As the plant lives its life and nears old age, it shrivels up, shrinks and dies out (decline stage).
On the same lines, a product also has a life cycle of its own. A product's entry or launching phase into the market corresponds to the introduction stage. As the product gains popularity and wins the trust of consumers, it begins to grow. Further, with increasing sales, the product captures enough market share and gets stable in the market. This is called the maturity stage. However, after some