The basic principle behind the Affordable Care Act was that by requiring all Americans to have health insurance, people would pay for insurance even when they weren’t sick, making the risk pool bigger and letting insurers cover more services and people who are already sick. Insurance companies say that it isn’t working out that way, though. Insurance giant Aetna announced that it will leave individual insurance exchanges in 11 out of the 15 states where it does business. [More]
