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@techreport{NBERw5957,
 title = "Consolidation in the Medical Care Marketplace: A Case Study from Masschusetts",
 author = "Barro, Jason R and Cutler, David",
 institution = "National Bureau of Economic Research",
 type = "Working Paper",
 series = "Working Paper Series",
 number = "5957",
 year = "1997",
 month = "March",
 doi = {10.3386/w5957},
 URL = "http://www.nber.org/papers/w5957",
 abstract = {This paper examines consolidation in the Massachusetts hospital market.  We find that consolidation is driven primarily by a large decline in the demand for hospital beds, resulting from increased enrollment in managed care and technological changes. The drive to consolidate appears through three primary forces: consolidation for closure; consolidation for economies of scale; and consolidation for network creation.},
}