<Para ID="Par1">We address three questions related to public reports of diabetes quality. First, does clinic quality evolve over time? Second, does the quality of reporting clinics converge to a common standard? Third, how persistent are provider quality rankings across time? Since current methods of public...</para>

Recently, several Blue Cross plans that sponsor Health Maintenance Organizations (HMOs), among other insurance products, have sought regulatory approval to convert from a not-for-profit to a for-profit entity. We examine the impact of not-for-profit HMOs converting to for-profit status in a...