Health, technology, and medical care spending.

The RAND Future Elderly Model illustrates important principles about the relation among medical technologies, health spending, and health. New technologies add to spending because the costs of the new technologies and the health care costs during the added years of life they bring outweigh reductions in annual spending from better health. Many technologies with a low cost per patient per year result in high aggregate costs because of an expanded population being treated. However, the jury is still out on whether a better health-risk profile among future sixty-five-year-olds could moderate health spending for the elderly.