TY - JOUR AU - Cutler,David M. AU - McClellan,Mark AU - Newhouse,Joseph P. TI - Prices and Productivity in Managed Care Insurance JF - National Bureau of Economic Research Working Paper Series VL - No. 6677 PY - 1998 Y2 - August 1998 UR - http://www.nber.org/papers/w6677 L1 - http://www.nber.org/papers/w6677.pdf N1 - Author contact info: David M. Cutler Department of Economics Harvard University 1875 Cambridge Street Cambridge, MA 02138 Tel: 617/496-5216 Fax: 617/496-8951 E-Mail: dcutler@harvard.edu Mark B. McClellan Director, Engelberg Center for Health Care Reform Senior Fellow, Economic Studies Leonard .D. Schaeffer Director's Chair in Health Policy ,The Brookings Institution 1775 Massachusetts avenue, N.W. Washington, DC 20036 Tel: (202) 741-6567 Fax: NA E-Mail: mmcclellan@brookings.edu Joseph P. Newhouse Division of Health Policy Research and Education Harvard University 180 Longwood Avenue Boston, MA 02115-5899 Tel: 617/432-1325 Fax: 617/432-3503 E-Mail: newhouse@hcp.med.harvard.edu AB - Integrating the health services and insurance industries (HMOs) could lower expenditure by reducing either the quantity of services or unit price. We compare the treatment of heart attacks and newly diagnosed chest pain in HMOs and traditional plans in two data sets. The nature of these health problems should minimize selection, and OLS and instrumental-variable estimates yield consistent results. HMOs have 30 to 40 percent lower expenditures than traditional indemnity plans. Actual treatments and health outcomes differ little; virtually all the difference in spending comes from lower unit prices. Managed care may yield substantial productivity improvements relative to traditional insurance. ER -