Everyone knows (or should know) that forcing a commercial health insurer to write for an individual a health insurance policy at a premium that falls short of the insurer’s best ex ante estimate of the cost of health care that individual will require is to force that insurer into what economists might call an unnatural act.
Remarkably, countries that rely on competing private health insurers to operate their universal, national health insurance systems all do just that. They allow each insurer to set the premium for a government-mandated , comprehensive benefit package, but require that each insurer “community-rate” that premium by charging the company’s individual customers that same premium, regardless of their health status and even age (with the exception of children).
American economists wonder why these countries do that, given that in the economist’s eyes community-rated health insurance premiums are “inefficient,” as economists define that term in their intra-professional dictionary.
The Affordable Care Act of 2010 (ACA, otherwise known as “ObamaCare”) also mandates private insurers to quote community-rated premiums on the electronic market places created by the ACA, allowing adjustments only for age and whether or not an applicant smokes. But within age bands and smoker-status, insurers must charge the same premium to individual applicants regardless of their health status.
As fellow economist Mark V. Pauly points out in an illuminating two-part interview with Saurabh Jha, M.D., published earlier on this blog, aside from the “inefficiency” of that policy, it has some untoward but eminently predictable consequences. It happens when healthier people disobey the mandate to purchase insurance, leaving the risk pools of those insured in the ACA market places with sicker and sicker individuals, thus driving up the community-rated premiums. As Pauly points out at length, a weakly enforced mandate on individuals to be insured can become the Achilles heel of community rating.