“…At the within-metropolitanarea level, much of the past research has taken into account a metropolitan area as an integrated domain of the local labour market, in which income change between the central city and its suburban ring is interdependent and highly correlated in the same direction (Hill et al, 1995;Ledebur and Barnes, 1992;Voith, 1998); the urban job mismatch argument stresses the growing central-citysuburban disparity in job opportunities that often causes more adverse outcomes for the city's African Americans (Browne, 2000;Stoll et al, 2000); employment suburbanisation due to central-city economic hardship ultimately accelerates the central-city-suburban status difference (Mieszkowski and Mills, 1993;Wilson, 1996), and the economic dominance of central city weakens economically relative to its surrounding suburban ring, eventually operating as a dormitory community (Hughes, 1993;Madden, 2000). On the other hand, the contrary argument is that the two independent economic entities within a metropolitan area ultimately co-exist with the gradual autonomy of the suburban economy over the central-city infl uence (Baldassare, 1992;Blair and Zhang, 1994;Mueller, 1997;Swanstrom et al, 2006). No matter what patterns of economic relationship exist between the central city and its suburban ring within a metropolitan area, it seems clear that spatial location is a critical ingredient in the analysis of both metropolitan and intrametropolitan economic volatility (Reiss, 1956).…”