Strategies To Support Quality-based Purchasing: A Review of the Evidence This report develops a conceptual model of how incentives influence provider behavior, summarizes what is known from randomized controlled trials about the effectiveness of different quality-based purchasing strategies, and describes ongoing research. This outdated information has been archived and is available for reference purposes only. To access the archived document, please go to: http://archive.ahrq.gov/clinic/epcarch.htm. Current as of July 2004 Internet Citation: Strategies To Support Quality-based Purchasing: A Review of the Evidence. July 2004. Agency for Healthcare Research and Quality, Rockville, MD. http://www.ahrq.gov/redirects/qpurchsum.html