A good or service may pass through many stages as it establishes itself in the marketplace. Marketing managers refer to this as the product cycle.

Un producto o servicio puede pasar por muchas etapas a medida que se establece en el mercado. Los gerentes de marketing se refieren a esto como el ciclo del producto.

The term you're referring to is known as the "Product Life Cycle". This is a concept that describes the stages a product goes through from when it was first thought of until it finally is removed from the market. The stages typically include introduction, growth, maturity, and decline.

1. Introduction: This is when the product is first launched in the market after development and testing stages. Marketing costs are typically high at this stage to build consumer awareness.

2. Growth: If the product is successful, it will enter the growth stage where sales will start increasing significantly. This is an ideal stage for businesses as they start seeing a return on their investment.

3. Maturity: At this stage, the product has been accepted by the market and the business is enjoying the period of high sales. However, there is also increased competition which may start eating into the company's market share.

4. Decline: Eventually, the market becomes saturated, the product becomes less popular, or a new, better product comes along. Sales start declining and the product may be removed from the market.

Marketing managers need to understand these stages to make strategic decisions about their products.