Separate when equal? Racial inequality and residential segregation

This paper sets out a new mechanism involving the emergence of middle-class black neighborhoods that can lead segregation in American cities to increase as racial inequality narrows. The formation of such neighborhoods requires a critical mass of highly educated blacks in the population, and leads to an increase in segregation when those communities are attractive for blacks who would otherwise reside in middle-class white neighborhoods. To assess the empirical importance of this “neighborhood formation” mechanism, we propose a two-part research design. First, inequality and segregation should be negatively related in cross section for older blacks if our mechanism operates strongly, as we find using both the 1990 and 2000 Censuses. Second, a negative relationship should also be apparent over time, particularly for older blacks. Here, we show that increased educational attainment of blacks relative to whites in a city between 1990 and 2000 leads to a significant rise in segregation, especially for older blacks, and to a marked increase in the number of middle-class black communities. These findings draw attention to a negative feedback loop between racial inequality and segregation that has implications for the dynamics of both phenomena.     

A simple model of homophily in social networks

Biases in meeting opportunities have been recently shown to play a key role for the emergence of homophily in social networks (see Currarini et al., 2009). The aim of this paper is to provide a simple microfoundation of these biases in a model where the size and type-composition of the meeting pools are shaped by agents׳ socialization decisions. In particular, agents either inbreed (direct search only to similar types) or outbreed (direct search to population at large). When outbreeding is costly, this is shown to induce stark equilibrium behavior of a threshold type: agents “inbreed” (i.e. mostly meet their own type) if, and only if, their group is above certain size. We show that this threshold equilibrium generates patterns of in-group and cross-group ties that are consistent with empirical evidence of homophily in two paradigmatic instances: high school friendships and interethnic marriages.     

Residential segregation influences on the likelihood of black and white self-employment

This paper estimates a model of potential to enter self-employment based on individual, household and community-level factors. This paper focuses on the impact of segregation on the likelihood of black and white working-age adults to be self-employed workers rather than wage or salary workers. A multi-level analysis combined answers of over 400,000 respondents to the 1990 and 2000 Integrated Public Use Micro Sample (IPUMS) [Ruggles, S., Sobek, M., Alexander, T., Fitch, C., Goeken, R., Hall, P., King, M., Ronnander, C., 2004. Integrated Public Use Microdata Series: Version 3.0 [Machine-readable database]. Minnesota Population Center [producer and distributor], Minneapolis, MN] with structural measures from 327 metropolitan areas from the U.S. Census Bureau's Housing Patterns files [Iceland, J., Weinberg, D., Steinmetz, E., 2002. Racial and ethnic residential segregation in the United States, 1980–2000. Special Report Series, CENSR no.3, U.S. Census Bureau, Washington, DC] to test the influence of each segregation process. The two residential segregation processes (relative clustering and exposure) were found to limit and enhance potential entry into self-employment, but in unique ways for each group.     

Some Reflections on the Spatial Dimensions of Occupational Segregation

This paper considers the role that urban spatial structure may play in the process of occupational segregation, and argues that neoclassical economic models of urban employment and residential location decisions have not considered the relationship between gender-based labor market status and space. The paper provides a critical feminist perspective on how conventional urban models have been used to explain patterns of segregation, and suggests reasons for limitations in existing theoretical and empirical analysis. It also explores ways in which economists can draw on work in other disciplines to develop fuller and more useful models of the relationship between urban spatial structure and occupational segregation.     

Wage protection systems, segregation and gender pay inequalities: West Germany, the Netherlands and Great Britain

This paper provides an empirical test of Rubery and Fagan's(1995) hypothesis that gender inequalities are influenced primarilyby the comprehensiveness of the overall wage protection systemin a country and by the extent of gender segregation. Genderdiscrimination in earnings is compared in West Germany, theNetherlands and Great Britain using 1989 ISSP data. Human capitalearnings functions for married males and married females areestimated. Discrimination is measured using standard decompositiontechniques. Earnings discrimination against females in the morecomprehensive systems was 37% in West Germany and 39% in theNetherlands, much less than the 61% found for the less comprehensivelyregulated Great Britain, the latter figure being higher thanprevious estimates using earlier data. Gender segregation isdemonstrated to have contributed to the relative magnitude ofdiscrimination in Great Britain.     

Controlling the Urban Fabric: The Complex Game of Distance and Proximity in European Upper‐Middle‐Class Residential Strategies

This article presents an open discussion of the processes of urban secession and gentrification in contemporary European cities, arguing that intergroup social dynamics in urban spaces are generally more complex than either extreme mutual avoidance or the colonization of neighbourhoods by the wealthiest groups. We analyse the residential strategies of urban upper‐middle class managers in various European metropolitan areas through in‐depth semi‐structured interviews to argue that these groups develop complex strategies of proximity and distance in relation to other social groups. The development of these ‘partial exit’ strategies takes place through specific combinations of practices that allow groups to select the dimensions they are willing to share with other social groups, and those in which they prefer a more segregated social environment for themselves and their families. The responses of our interviewees were consistently more nuanced and complex than suggested by a simplistic theory about their drive to withdraw from society, forcing us to develop more sophisticated conceptual frameworks to account for the growing prevalence of multi‐layered identities and spheres of reference and solidarity, specific combinations of elective segregation and local involvement, and more active patterns of mobility combined with local embeddedness.     

The influence of residential segregation and its correlates on ethnic enterprise in urban areas

I develop and estimate a model of potential to enter self-employment based on individual and community-level factors. Of particular interest was the influence of racial residential segregation processes, and segregation's tendency to concentrate persons with similar demographic profiles in geographic space. It has been argued that segregation processes can also concentrate poverty and its associated social dislocations. An analysis of a database of 8917 households in four U.S. metropolitan areas revealed that two residential segregation processes (clustering and interaction) limit and enhance potential entry into self-employment for blacks, and provides a partial explanation for the longstanding gaps in white and black self-employment rates.     

Consumption effects of genetic modification: what if consumers are right?⋆

This paper develops a model of differentiated consumers to examine the consumption effects of genetic modification (GM) under alternative labelling regimes and segregation enforcement scenarios. Analytical results show that if consumers perceive GM products as being different than their traditional counterparts, GM affects consumer welfare and, thus, consumption decisions. When the existence of market imperfections in one or more stages of the supply chain prevents the transmission of cost savings associated with the new technology to consumers, GM results in welfare losses for consumers. The analysis shows that the relative welfare ranking of the ‘no labelling’ and ‘mandatory labelling’ regimes depends on: (i) the level of consumer aversion to GM products; (ii) the size of marketing and segregation costs under mandatory labelling; (iii) the share of the GM product in total production; and (iv) the extent to which GM products are incorrectly labelled as non‐GM products.     

Ghettos and enclaves in the cross-place realm: mapping socially bounded spaces across cities

Since the early Chicago School, urban researchers have used residential proximity to assess contacts within and between racial and ethnic groups. This approach is increasingly limited. Diverse groups use email, social networking sites, instant messaging and mobile phones to communicate across urban zones and distant cities. These practices enable mutual support among far-flung family members and co-ethnics as they engage with an array of institutions throughout their day. Through interviews and observations that include women and men of diverse occupations, races and national origins, the author explores how and why cross-place enclosures of sociality and resources develop. Rather than framing the residential area as the locus of racial/ethnic concentration, the author focuses on cross-place concentrations in the technologically mediated workspace. This study enhances theorization of the structural negotiations, interpersonal pressures and group preferences that produce separate lifeworlds in globalizing cities.     

A theory of racial diversity, segregation, and productivity

Empirical evidence illustrates that diversity generates both economic costs and benefits. This paper develops a theoretical model that accounts for the positive and deleterious effects of heterogeneity. First, an expanded Solow Growth Model demonstrates that the direct effects of diversity can be positive or negative, and depend upon the size of fixed parameter values. Second, diversity also influences individuals' location decisions. Segregation (variation of diversity across regions) always reduces national output per worker, so if diversity induces integration, it indirectly augments productivity as well. Finally, political policies aimed at reducing interaction costs across groups may actually reduce aggregate output per worker by encouraging segregation.