Financial results are lagging indicators. They measure what has already happened and offer little guidance on what to do next. This is why Amazon operates around input metrics that can be deliberately managed to drive growth. Here’s how they work.
Controllable, customer-facing input metrics are just as the name describes:
1. Controllable – These are elements that a company can influence through its teams and initiatives. At Amazon, input metrics can include things like the number of products available, the cost per item shipped and received, and inventory record accuracy.
2. Customer-Facing – Each input metric directly affects the customer experience. For example, when Amazon reduced order-to-delivery time from three days to one day, it significantly improved customer satisfaction and retention.
The key advantage of focusing on input metrics is that output metrics cannot be directly or sustainably manipulated over time. Gross profit, active customers, churn rate, and free cash flow cannot be actively controlled, but they are the results of the input metrics that can.
The goal is not to replace output tracking with input tracking, but to connect manageable actions to financial outcomes. If a company correctly moves the right input metrics, positive results in output metrics will follow.
Understanding and acting upon this distinction enables organizations to focus on what they can control, rather than merely reacting to past performance.
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