The Four Stages ROI Model is a framework for measuring the return on investment (ROI) of marketing activities. The Four Stages ROI Model is a framework for measuring the return on investment (ROI) of marketing activities. It provides marketers with a way to understand how each stage of their marketing strategy contributes to the overall success of their business. This model also helps marketers to prioritize their efforts and decide which activities are most important or should be given more attention. The Four Stages ROI Model consists of four stages: Awareness, Interest, Desire, and Action. In this article we will discuss these stages in detail and how they contribute to the overall success of your business.