The Wisdom of the Ailing
The real reason health insurers won’t cover people with pre-existing conditions.
There are currently tens of millions of Americans without health insurance. Some can’t afford coverage at going rates. But as recently as 2009, one in seven applicants were rejected by the four largest insurance companies, who refused to sell them insurance at any price. Uninsurable Americans are mostly sick to begin with: They have heart disease, diabetes, cancer, and other pre-existing conditions that set off alarm bells for insurance sellers.
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An intriguing answer to that question comes from Nathaniel Hendren, a graduating Ph.D. student at MIT, in a study that got him offers from economics departments at Harvard, Stanford, and Princeton, among others. According to Hendren’s argument, not only are sick people a lot more expensive to care for, but they also know a lot more about what their cost of care is likely to be in the future. And it’s this inside information that makes the market for covering pre-existing conditions break down.
http://www.slate.com...ck_.single.html