The industry, Potter says, is driven by "two key figures: earnings per share and the medical-loss ratio, or medical-benefit ratio, as the industry now terms it. That is the ratio between what the company actually pays out in claims and what it has left over to cover sales, marketing, underwriting and other administrative expenses and, of course, profits..."The Truth About the Insurance Industry (via Making Light)
The best way to drive down "medical-loss," explains Potter, is to stop insuring unhealthy people. You won't, after all, have to spend very much of a healthy person's dollar on medical care because he or she won't need much medical care. And the insurance industry accomplishes this through two main policies. "One is policy rescission," says Potter. "They look carefully to see if a sick policyholder may have omitted a minor illness, a pre-existing condition, when applying for coverage, and then they use that as justification to cancel the policy, even if the enrollee has never missed a premium payment..."
The issue isn't that insurance companies are evil. It's that they need to be profitable. They have a fiduciary responsibility to maximize profit for shareholders. And as Potter explains, he's watched an insurer's stock price fall by more than 20 percent in a single day because the first-quarter medical-loss ratio had increased from 77.9 percent to 79.4 percent.
The reason we generally like markets is that the profit incentive spurs useful innovations. But in some markets, that's not the case. We don't allow a bustling market in heroin, for instance, because we don't want a lot of innovation in heroin creation, packaging and advertising. Are we really sure we want a bustling market in how to cleverly revoke the insurance of people who prove to be sickly?