Cloud economics deals with the economic aspects of cloud computing, such as cost advantages and operational expenses of the cloud, evaluation of the cloud migration ROI, and TCO (total cost of ownership) analysis.
The cost advantages of the cloud include the lower cost of computing resources when purchased in large quantities and the reduced labor cost as the organization abandons the concept of on-site infrastructure. Since organizations can quickly and efficiently upscale and downscale their computing infrastructure, they become more agile and ready to respond to their client's needs.
See also Cloud ROI.