TY - JOUR AU - Gruber,Jonathan AU - Simon,Kosali TI - Crowd-Out Ten Years Later: Have Recent Public Insurance Expansions Crowded Out Private Health Insurance? JF - National Bureau of Economic Research Working Paper Series VL - No. 12858 PY - 2007 Y2 - January 2007 UR - http://www.nber.org/papers/w12858 L1 - http://www.nber.org/papers/w12858.pdf N1 - Author contact info: Jonathan Gruber MIT Department of Economics E52-355 50 Memorial Drive Cambridge, MA 02142-1347 Tel: 617/253-8892 Fax: 617/253-1330 E-Mail: gruberj@mit.edu Kosali I. Simon School of Public and Environmental Affairs Indiana University Rm 359 1315 East Tenth Street Bloomington, IN 47405-1701 Tel: (812) 856-3850 E-Mail: simonkos@indiana.edu AB - The continued interest in public insurance expansions as a means of covering the uninsured highlights the importance of estimates of "crowd-out", or the extent to which such expansions reduce private insurance coverage. Ten years ago, Cutler and Gruber (1996) suggested that such crowd-out might be quite large, but much subsequent research has questioned this conclusion. We revisit this issue by using improved data and incorporating the research approaches that have led to varying estimates. We focus in particular on the public insurance expansions of the 1996-2002 period. Our results clearly show that crowd-out is significant; the central tendency in our results is a crowd-out rate of about 60%. This finding emerges most strongly when we consider family-level measures of public insurance eligibility. We also find that recent anti-crowd-out provisions in public expansions may have had the opposite effect, lowering take-up by the uninsured faster than they lower crowd-out of private insurance. ER -