Economies of Scale
Lower per-unit costs that AWS achieves by aggregating usage across many customers and passing savings on.
Economies of scale arise when a provider’s per-unit costs fall as total volume grows. AWS operates at a scale no individual business can match, purchasing compute, networking, and storage hardware in enormous quantities and spreading fixed costs — data center construction, power infrastructure, staffing — across millions of customers worldwide. Those lower operating costs are periodically passed back to customers as price reductions, which AWS has done more than a hundred times since launching.
The exam-day distinction to watch is between economies of scale and pay-as-you-go pricing. Pay-as-you-go means customers pay only for what they consume; economies of scale explain why those consumption-based prices can be set so low. Both appear in AWS’s six advantages of cloud computing, so understanding the separation between the two concepts prevents confusing them on a scenario question.
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