Fill in the Blanks Product life cycleOnline version Product life cycle, business english by amy tzi 1 due sector benefit Decline undertake saturated research launching growth low maximize switching purchased as inevitable stages make maintain process aim modifications small shrink On increasing Product Life Cycle Stages Explained The product life cycle has 4 very clearly defined , each with its own characteristics that mean different things for business that are trying to manage the life cycle of their particular products . Introduction Stage ? This stage of the cycle could be the most expensive for a company a new product . The size of the market for the product is , which means sales are , although they will be . the other hand , the cost of things like and development , consumer testing , and the marketing needed to launch the product can be very high , especially if it's a competitive . Growth Stage ? The growth stage is typically characterized by a strong in sales and profits , and because the company can start to from economies of scale in production , the profit margins , well as the overall amount of profit , will increase . This makes it possible for businesses to invest more money in the promotional activity to the potential of this growth stage . Maturity Stage ? During the maturity stage , the product is established and the for the manufacturer is now to the market share they have built up . This is probably the most competitive time for most products and businesses need to invest wisely in any marketing they . They also need to consider any product or improvements to the production which might give them a competitive advantage . Stage ? Eventually , the market for a product will start to , and this is what's known as the decline stage . This shrinkage could be to the market becoming ( i . e . all the customers who will buy the product have already it ) , or because the consumers are switching to a different type of product . While this decline may be , it may still be possible for companies to some profit by to less - expensive production methods and cheaper markets .