TY - JOUR AU - Glied,Sherry AU - Stabile,Mark TI - Avoiding Health Insurance Crowd-Out: Evidence from the Medicare as Secondary Payer Legislation JF - National Bureau of Economic Research Working Paper Series VL - No. 6277 PY - 1997 Y2 - November 1997 UR - http://www.nber.org/papers/w6277 L1 - http://www.nber.org/papers/w6277.pdf N1 - Author contact info: Sherry A. Glied Mailman School of Public Health Columbia University Department of Health Policy and Management 600 West 168th Street, Room 610 New York, NY 10032 Tel: 212/305-0299 Fax: 212/305-3405 E-Mail: sag1@columbia.edu Mark Stabile School of Public Policy and Governance University of Toronto Canadiana Building, 3rd Floor 14 Queen's Park Cres. W. Toronto, ON M5S 3K9 CANADA Tel: 416/978-4329 Fax: 416/978-5079 E-Mail: mark.stabile@utoronto.ca AB - The cost of efforts to expand health insurance coverage to the currently uninsured increases when people who would otherwise purchase private insurance obtain subsidized public coverage. Legislators are increasingly interested in mechanisms that target insurance benefits to those who need them most. This paper investigates the effects of one of the first such targeting efforts, the 1982 Medicare as Secondary Payer (MSP) provisions. The MSP rules require employers who offer insurance coverage to their employees under 65 to offer coverage on the same terms to their Medicare-eligible employees. This coverage then becomes 'primary' to Medicare. We examine the incidence of this implicit tax, the magnitude of tax avoidance efforts, and the extent of tax compliance. We find little evidence that the MSP rules affected the wages or employment of affected workers. We find weak evidence suggesting that the MSP shifted the composition of employment of older workers toward MSP-exempt jobs. We find strong evidence of low compliance with the MSP rules. Our results cast doubt on the efficacy of provisions designed to reduce crowd-out in new health insurance programs. ER -