Community rating regulations equalize the insurance premiums faced by the healthy and the unhealthy. Intended reductions in the unhealthy's premiums can be undone, however, if the healthy forgo coverage. The severity of this adverse selection problem hinges largely on how health care costs are...

Community rating regulations equalize the insurance premiums faced by the healthy and the unhealthy. Intended reductions in the unhealthy's premiums can be undone, however, if the healthy forgo coverage. The severity of this adverse selection problem hinges largely on how health care costs are...

In the early 1990s, several U.S. states enacted community rating regulations to equalize the health insurance premiums paid by the healthy and the sick. Consistent with severe adverse selection pressures, their private coverage rates fell by around 8 percentage points more than rates in...