1. Value-driven health care purchasing: case study of the Massachusetts Group Insurance Commission Author(s): Alteras, Tanya, authorSilow-Carroll, Sharon, author Publication: [New York, New York] : Commonwealth Fund, August 2007 Subject(s): Fees and ChargesGroup Purchasing -- organization & administrationHealth Care Coalitions -- organization & administrationOrganizational Case StudiesSocial ValuesMassachusettsUnited States