This review surveys the recent evidence and debate surrounding social
and spatial polarization within cities. To begin with, a brief account
is provided of the significance of global restructuring and the contr
action of the welfare state for widening inequalities in capitalist so
cieties, and how this is being reflected, in turn, in modifications to
the character and incidence of poverty in cities. In this section, to
pick up on the concluding remarks in the preceding review (Badcock, 1
996), attention is drawn to how emphatically important structural effe
cts remain to an understanding of spatial polarization in cities and t
he profound changes that are taking place in people's lives at the com
munity level. The next section selectively documents some of the key c
ontributions to research on urban poverty and polarization in the USA
including the theories relating to the 'new urban poverty', the format
ion of a ghetto-bound 'underclass' and the emergence of a new spatial
order based upon a 'global city' paradigm. In the third section the co
mparative evidence for growing spatial polarization in cities is exami
ned. This includes some consideration of the portability and relevance
of constructs developed under American conditions for cities in other
, mostly western, societies. Lastly, a case is made suggesting why thi
s research on spatial polarization is quite vital from a public policy
perspective, and why human geographers should be in the thick of it.