Product Lifecycle

The product lifecycle is the sequence from introduction through growth, maturity, and decline. Demand and competition shift across stages: early, few competitors and often high margin; growth, scaling and share battles; maturity, saturation and cost focus; decline, substitution and exit. Founders use it to time investment (where are we?), set strategy (expand vs harvest vs pivot), and anticipate competitor and customer behaviour. The lens: don’t treat all products or markets as if they were in the same stage — stage dictates optimal levers and expectations.

Estimate which stage your product or category is in (intro, growth, maturity, decline) using growth rates, penetration, and competitive behaviour. Match strategy to stage: invest and scale in growth; optimise and defend in maturity; prune or reinvent in decline. Use the lifecycle to set expectations for investors and teams — e.g. don’t promise growth-stage rates in a mature market.

Product lifecycle: introduction → growth → maturity → decline. Stage dictates strategy, investment, and expectations. Use it to time bets, set goals, and communicate with stakeholders.