http://www.freakonomics.com/2012/01/19/what-do-hand-washing-and-financial-illiteracy-have-in-common-a-new-freakonomics-radio-podcast/
Really good podcast about this issue.
http://www.latimes.com/health/healthcare/la-fi-healthcare-hospitals-20110430,0,5301654.story Latest story on rewarding those hospitals with high quality indicators