RESIDENTIAL MOBILITY AND HOUSING TAX REFORMS: Some Empirical Evidence*

The efficiency and equity implications of mortgage interest deductibility have been studied by a number of authors using models of housing demand that do not account for barriers to residential mobility. This paper examines how one's assessment of that proposed tax reform may differ based on models that do allow for such barriers, using data from Toronto, Canada. We find that earlier works tend to overstate the deadweight loss attributable to the introduction of mortgage interest deductibility, particularly in the short run.