Visualization of Medically Underwritten vs. Community-Rated Premiums

Uwe E. Reinhardt is an economics professor at Princeton:

The change from what was in place before the Affordable Care Act to post-law arrangements in the nongroup market can be illustrated graphically. In the chart below, we assume initially that all members of a given population are covered by either medically underwritten or community-rated health insurance, with a given package of covered health benefits. The white line represents the premium individuals would have to pay under medical underwriting. The dashed segment of that line is meant to show the actuarial cost and the premium range in which insurers in the real world would reject applicants outright. The green line shows the community-rated premium for this same population. We assume here that age is either not factored into the premium or the population in question is all of the same age, which is why the green line is horizontal.