This study examines the effect of HMO and for-profit HMO share on the survival of safety net services and profitable services in hospitals. Using data from 1990-2003 and proportional hazard models, I find that hospitals in high HMO markets started out having lower hazard of shutting down...

"The NBER Bulletin on Aging and Health provides summaries of publications like this. You can sign up to receive the NBER Bulletin on Aging and Health by email. We analyze whether decreased emergency department access (measured by increased driving time to the nearest ED) results in adverse...