Although the fact is not widely acknowledged by urban scholars, because of
the way that it is administered the property tax helps to shape the social
geography of metropolitan areas. Research by public finance specialists has
shown that cheap housing is often overassessed, and that variations in ass
essment ratios (the ratio of assessed to market values) usually favour the
suburbs. Sales prices and assessment data from the Hamilton, Ontario, metro
politan area for 1976, 1996, and 1999 confirm these patterns and show that
they are persistent. In addition, cross-tabulations by market value and loc
ation show that geographical variations in assessment ratios are caused by
the inequitable treatment of inexpensive property, not vice versa. A 1998 r
eassessment made the situation worse. The main difficulty in reducing tax i
nequities is political, not technical.