Why are we spending more on healthcare?

The answer from Nobel Prize winning economic historian Robert Fogel:

The main factor is that the long-term income elasticity of the demand for healthcare is 1.6—for every 1 percent increase in a family’s income, the family wants to increase its expenditures on healthcare by 1.6 percent. This is not a new trend. Between 1875 and 1995, the share of family income spent on food, clothing, and shelter declined from 87 percent to just 30 percent, despite the fact that we eat more food, own more clothes, and have better and larger homes today than we had in 1875. All of this has been made possible by the growth in the productivity of traditional commodities. In the last quarter of the 19th century, it took 1,700 hours of labor to purchase the annual food supply for a family. Today it requires just 260 hours, and it is likely that by 2040, a family’s food supply will be purchased with about 160 hours of labor.

Consequently, there is no need to suppress the demand for healthcare. Expenditures on healthcare are driven by demand, which is spurred by income and by advances in biotechnology that make health interventions increasingly effective. Just as electricity and manufacturing were the industries that stimulated the growth of the rest of the economy at the beginning of the 20th century, healthcare is the growth industry of the 21st century. It is a leading sector, which means that expenditures on healthcare will pull forward a wide array of other industries including manufacturing, education, financial services, communications, and construction.

See also these wise words from DeLong the elder.