TY - JOUR AU - Gruber,Jonathan AU - Poterba,James M. TI - Tax Incentives and the Decision to Purchase Health Insurance: Evidence from the Self-Employed JF - National Bureau of Economic Research Working Paper Series VL - No. 4435 PY - 1996 Y2 - February 1996 UR - http://www.nber.org/papers/w4435 L1 - http://www.nber.org/papers/w4435.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 James M. Poterba Department of Economics MIT, E52-350 50 Memorial Drive Cambridge, MA 02142-1347 Tel: 617/253-6673 Fax: 617/258-7804 E-Mail: poterba@nber.org AB - The Tax Reform Act of 1986 introduced a new tax subsidy for health insurance purchases by self-employed persons. This paper analyzes the changing patterns of insurance demand before and after this reform to generate new estimates of how the after tax price of insurance affects the discrete choice of whether to buy insurance. We employ both traditional regression models for insurance demand, in which after-tax price of insurance is an explanatory variable. as well as nonparametric tests that compare changes in insurance purchases by self-employed individuals with the coincident changes for other groups. Our analysis suggests that I one percent increase in the cost of insurance coverage reduces the probability that a self-employed household will be insured by as much as 1.8 percentage points. ER -