SPOTLIGHT: The progressive co-pay

How do health plans make sure the poor get the care they need while continuing to stay solvent? Some believe a "progressive" insurance program would do the trick, under which plans impose co-pays based on family income rather than a flat rate. They argue that such a scheme, which would charge no co-insurance for families living below the poverty line while raising out of pocket maximums for the affluent, could cut health spending by 13 to 34 percent. Article