TY - JOUR AU - Berndt,Ernst R. AU - McGuire,Thomas G. AU - Newhouse,Joseph P. TI - A Primer on the Economics of Prescription Pharmaceutical Pricing in Health Insurance Markets JF - National Bureau of Economic Research Working Paper Series VL - No. 16879 PY - 2011 Y2 - March 2011 UR - http://www.nber.org/papers/w16879 L1 - http://www.nber.org/papers/w16879.pdf N1 - Author contact info: Ernst R. Berndt MIT Sloan School of Management 100 Main Street, E62-518 Cambridge, MA 02142 Tel: 617/253-2665 Fax: 617-227-0880 E-Mail: eberndt@mit.edu Thomas McGuire Department of Health Care Policy Harvard Medical School 180 Longwood Avenue Boston, MA 02115 Tel: 617/432-3536 E-Mail: mcguire@hcp.med.harvard.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 - The pricing of medical products and services in the U.S. is notoriously complex. In health care, supply prices (those received by the manufacturer) are distinct from demand prices (those paid by the patient) due to health insurance. The insurer, in designing the benefit, decides what prices patients pay out-of-pocket for drugs and other products. In this primer we characterize cost and supply conditions in markets for generic and branded drugs, and apply basic tools of microeconomics to describe how an insurer, acting on behalf of its enrollees, would set demand prices for drugs. Importantly, we show how the market structure on the supply side, characterized alternatively by monopoly (unique brands), Bertrand differentiated product markets (therapeutic competition), and competition (generics), influences the insurer’s choices about demand prices. This perspective sheds light on the choice of coinsurance versus copayments, the structure of tiered formularies, and developments in the retail market. ER -