TY - JOUR AU - Lakdawalla,Darius AU - Sood,Neeraj TI - Health Insurance as a Two-Part Pricing Contract JF - National Bureau of Economic Research Working Paper Series VL - No. 12681 PY - 2006 Y2 - November 2006 UR - http://www.nber.org/papers/w12681 L1 - http://www.nber.org/papers/w12681.pdf N1 - Author contact info: Darius N. Lakdawalla Schaeffer Center for Health Policy and Economics University of Southern California 3335 S. Figueroa St, Unit A Los Angeles, CA 90089-7273 Los Angeles, CA 90 Tel: 213/740-6012 E-Mail: dlakdawa@healthpolicy.usc.edu Neeraj Sood Department of Clinical Pharmacy USC School of Pharmacy 1985 Zonal Avenue Los Angeles, CA 90033 Tel: 310/393-0411 Fax: 310/260-8156 E-Mail: nsood@usc.edu M3 - presented at "Health Care Program Meeting", October 20, 2006 AB - Monopolies appear throughout health care markets, as a result of patents, limits to the extent of the market, or the presence of unique inputs and skills. In the health care industry, however, the deadweight costs of monopoly may be small or even absent. Health insurance, frequently implemented as an ex ante premium coupled with an ex post co-payment per unit consumed, effectively operates as a two-part pricing contract. This allows monopolists to extract consumer surplus without inefficiently constraining quantity. This view of health insurance contracts has several implications: (1) Low ex post copayments to insured consumers substantially reduce deadweight losses from medical care monopolies -- we calculate, for instance, that the presence of health insurance lowers monopoly loss in the US pharmaceutical market by 82 percent; (2) Price regulation or break-up of health care monopolies may be inferior to laissez-faire or simple redistribution of monopoly profits; and (3) Promoting efficiency in the health insurance market can reduce static losses in the goods market while improving the dynamic efficiency of innovation. ER -