TY - JOUR AU - Glaeser,Edward L. AU - Shapiro,Jesse M. TI - The Benefits of the Home Mortgage Interest Deduction JF - National Bureau of Economic Research Working Paper Series VL - No. 9284 PY - 2002 Y2 - October 2002 UR - http://www.nber.org/papers/w9284 L1 - http://www.nber.org/papers/w9284.pdf N1 - Author contact info: Edward L. Glaeser Department of Economics 315A Littauer Center Harvard University Cambridge, MA 02138 Tel: 617/495-0575 Fax: 617/495-7730 E-Mail: eglaeser@harvard.edu Jesse M. Shapiro University of Chicago Booth School of Business 5807 S. Woodlawn Avenue Chicago, IL 60637 Tel: 773/834-2688 Fax: 773-753-0563 E-Mail: jmshapir@uchicago.edu M1 - published as Edward L. Glaeser, Jesse M. Shapiro. "The Benefits of the Home Mortgage Interest Deduction," in James M. Poterba, editor, "Tax Policy and the Economy, Volume 17" MIT Press (2003) AB - The home mortgage interest deduction creates incentives to buy more housing and to become a homeowner, and the case for the deduction rests on social benefits from housing consumption and homeownership. There is little evidence suggesting large externalities from the level of housing consumption, but there appear to be externalities from homeownership. Externalities from living around homeowners are far too small to justify the deduction. Externalities from homeownership are larger, but the home mortgage interest deduction is a particularly poor instrument for encouraging homeownership since it is targeted at the wealthy, who are almost always homeowners. The irrelevance of the deduction is supported by the time series which shows that the ownership subsidy moves with inflation and has changed significantly between 1960 and today, but the homeownership rate has been essentially constant. ER -