La ségrégation économique comme un phénomène complexe : une analyse spatio-temporelle du cas montréalais

Economic segregation, or residential inequalities based on income, is a complex spatial process. It is associated with structures which arise at certain scales and which evolve in time. In this paper, we analyse the evolution of economic segregation in Montréal from 1980 to 2000. This analysis is based on household's income and on their distribution within the residential space from four scales: households, census tracts, municipalities and some radio-concentric zones. Results confirm that the spatial organisation of economic segregation is scale dependent. More precisely, local inequalities are growing more rapidly but this trend does not prevent the consolidation of metropolitan-sized clusters. Moreover, results confirm that Montréal's economic segregation follows North American trends like the growth of economic disparities (spatial or not) or the fact that the enrichment of central and ex-urban neighbourhoods is compensated by the impoverishment of inner-ring suburbs.     

The Occupy Movement and the Top 1% in Canada

The Occupy movement catalyzed public debate on the issue of growing income inequality. This paper examines recent patterns of inequality in Canada, paying particular attention to changes in the characteristics of the top 1% of income earners. At the national level, the gap between the top percentile and the other 99% has widened considerably: in 2006, 11% of the nation's income was concentrated in the hands of top earners (whose mean income of $344,000 is 11 times that of the average Canadian) compared with 7.7% just 15 years earlier. Beneath such national‐level figures lie important geographical differences in the income hierarchy: the thresholds, average incomes and socio‐economic characteristics of the top 1% vary widely across provinces and cities. Among the most important spatial shifts observed is the growing concentration of high‐income groups in energy‐rich Western Canada, where Calgary has become the most unequal city in the country.     

What do divided cities have in common? An international comparison of income segregation

This paper provides a comparative assessment of income segregation in cities of 12 countries. We use spatial entropy indexes based on small‐scale gridded income data and consistent definition of city boundaries to ensure international comparability of our segregation measures. Results show considerable variation in the levels of income segregation across cities, even within countries, reflecting the diversity within urban systems. Larger, more affluent, productive, and more unequal cities tend to be more segregated. Urban form, demographic, and economic factors explain additional variation in segregation levels through the influence of high‐income households, who tend to be the most segregated. The positive association between productivity and segregation is mitigated in polycentric cities.     

Spatial and social mobility

This paper analyzes the relationship between spatial mobility and social mobility. It develops a two‐skill‐type spatial equilibrium model of two regions with location preferences where each region consists of an urban area that is home to workplaces and residences and an exclusively residential suburban area. The paper demonstrates that relative regional social mobility is negatively correlated with segregation and inequality. In the model, segregation, income inequality, and social mobility are driven by differences between urban and residential areas in commuting cost differences between high‐skilled and low‐skilled workers, and also by the magnitude of taste heterogeneity.     

Ghettos in Canada's cities? Racial segregation,ethnic enclaves and poverty concentration in Canadian urban areas

Recent literature suggests a growing relationship between the clustering of certain visible minority groups in urban neighbourhoods and the spatial concentration of poverty in Canadian cities, raising the spectre of ghettoization. This paper examines whether urban ghettos along the U.S. model are forming in Canadian cities, using census data for 1991 and 2001 and borrowing a neighbourhood classification system specifically designed for comparing neighbourhoods in other countries to the U.S. situation. Ecological analysis is then performed in order to compare the importance of minority concentration, neighbourhood classification and housing stock attributes in improving our understanding of the spatial patterning of low-income populations in Canadian cities in 2001. The findings suggest that ghettoization along U.S. lines is not a factor in Canadian cities and that a high degree of racial concentration is not necessarily associated with greater neighbourhood poverty. On the other hand, the concentration of apartment housing, of visible minorities in general, and of a high level of racial diversity in particular, do help in accounting for the neighbourhood patterning of low income. We suggest that these findings result as much from growing income inequality within as between each visible minority group. This increases the odds of poor visible minorities of each group ending up in the lowest-cost, least-desirable neighbourhoods from which they cannot afford to escape (including social housing in the inner suburbs). By contrast, wealthier members of minority groups are more mobile and able to self-select into higher-status 'ethnic communities'. This research thus reinforces pleas for a more nuanced interpretation of segregation, ghettoization and neighbourhood dynamics.     

广州市外来人口居住隔离及影响因素研究

利用广州市人口普查街道(部分居委会)数据总结1990-2000年外来人口居住隔离的时空特征:隔离程度呈增加趋势,核心和外围区隔离程度及变化差异大,散点状为主的空间模式,并呈现异质性和非稳定性的社会特征。通过典型社区问卷访谈,对比外来人口与户籍低收入人口,建构影响因素的逻辑回归(Logistic regression)模型,显示户籍的属地差别是产生隔离的根本原因,与户籍属地管理相关的劳动力市场分割和住房政策共同构成了排斥的制度环境,限制了外来人口的住房选择,把其推向低端私人租房市场。在有限的居住选择下,交通和经济等个体择居要素影响了隔离空间的分布和社会特征,以城中村为代表低端私人租房来源的布局特征决定并固化了隔离空间的分布模式。     

LOCAL PUBLIC SERVICE PROVISION AND SPATIAL INEQUALITY IN CHINESE CITIES: THE ROLE OF RESIDENTIAL INCOME SORTING AND LAND‐USE CONDITIONS

Spatial inequality refers to unequal access to local public services between high‐ and low‐income households in relation to their residential locations. We examine two hypotheses regarding the role of income sorting and land‐use conditions in shaping spatial inequality in Chinese cities, where residents have little direct influence on local public service provision. First, in the presence of resource indivisibility, travel cost, and location‐based rationing, scarcity of public‐service resources in a city makes access to public services more uneven across neighborhoods, thus exacerbating income sorting and spatial inequality in the city. Second, the exacerbating effect of resource scarcity is mitigated by land‐use conditions that limit income sorting. Estimates of willingness to pay by households of different income levels for public‐service resources across cities corroborate both the exacerbating effect of resource scarcity and the mitigating effect of inclusive land‐use conditions.     

INEQUALITY IN CITIES*

ABSTRACT Much of the inequality literature has focused on national inequality, but local inequality is also important. Crime rates are higher in more unequal cities; people in unequal cities are more likely to say that they are unhappy. There is a negative association between local inequality and the growth of city‐level income and population, once we control for the initial distribution of skills. High levels of mobility across cities mean that city‐level inequality should not be studied with the same analytical tools used to understand national inequality, and policy approaches need to reflect the urban context. Urban inequality reflects the choices of more and less skilled people to live together in particular areas. City‐level skill inequality can explain about one‐third of the variation in city‐level income inequality, while skill inequality is itself explained by historical schooling patterns and immigration. Local income also reflects the substantial differences in the returns to skill across, which are related to local industrial patterns.     

Spatial Inequality Between and Within Urban Areas: The Case of Israeli Cities

Central areas enjoy greater efficiency in the production of goods and services than do outlying areas. Because of the inherent advantages of central areas over outlying areas, disparities among regions do not vanish over time. On the contrary, centripetal forces increase inequalities across space. The phenomena of increased globalization, trade liberalization and treaties among countries not only enable the flow of labour, products (export) and foreign direct investment but also help reduce spatial inequality between countries. These phenomena also induce greater spatial economic concentration within a country. Thus, although disparities among countries decrease, a widening gap is observed between regions within countries and within large urban areas. In the empirical part, we analyse the general patterns of spatial inequality found among 55 localities in Israel with population size over 20,000. Looking at the spatial inequality relationship, both within and between cities in Israel, we show how all economic indicators measured, including inequality, decrease with distance from the core. Localities in the periphery that experience greater equality also experience lower average income, lower education, less self-employment and more unemployment.     

Are new patterns of low‐income distribution emerging in Canadian metropolitan areas?

Recent studies on urban poverty in Canadian cities suggest a growing spatial concentration of poor populations within metropolitan regions. This article assesses trends in the intra‐urban distribution of the poor population from 1986 to 2006 in eight of Canada's largest cities. We consider five well‐known dimensions of segregation, as identified by Massey and Denton (1988) , in order to examine changes in the spatial distribution of poor populations within metropolitan areas: evenness, exposure, concentration, clustering, and centralization. These indices were calculated for low‐income populations at the census tract level using data from five Canadian censuses. Although each metropolitan area has distinctive characteristics, we were able to identify some general trends. The results suggest that, in 2006 compared to 1986, low‐income populations lived in more spatially concentrated areas, which were, at the same time, socioeconomically more homogeneous and more dispersed throughout the metropolitan area. In addition, we observed that over the last twenty years areas of poverty have been located, for the most part, in neighbourhoods adjacent to downtown cores. Nevertheless, we found that poverty has mostly increased in suburban areas located outside inner‐city neighbourhoods. Growing socioeconomic homogeneity and dispersion of low income areas in metropolitan areas reveal new spatial patterns of urban poverty distribution. These findings should be cause for concern as social isolation in the most disadvantaged neighbourhoods could affect the life chances and opportunities for the residents of those areas.     

The Costs of Exclusion: Gender Job Segregation,Structural Change and the Labour Share of Income

While women's share of employment has risen in many countries over the last two decades, gender job segregation has worsened, with women increasingly excluded from ‘good’ jobs in the industrial sector. In this article, the determinants of gender job segregation are assessed using panel data for a broad set of developing countries covering the period 1991–2015. The effect of gender job segregation on all workers, via the labour share of income, is also analysed. The results identify two major contributors to gender job segregation — the rising capital/labour ratio and the ratio of female/male labour force participation rates — indicative of ‘crowding’ and exclusion as economies move up the industrial ladder. The analysis further indicates that the crowding of women into lower quality jobs has a negative effect on workers as a whole by dampening the labour share of income. Those processes are influenced by global and macroeconomic conditions and policies that have circumscribed the expansion of high‐quality jobs relative to labour supply, intensifying competition for ‘good’ jobs and weakening labour's bargaining power.     

Residential property disparities in city districts in Prague,Czech Republic

City districts are often classified as ‘rich’ or ‘poor,’ a phenomenon that occurs within cities all over the world. While income inequality, wealth inequality, and other kinds of social inequality are frequently tracked, there is a surprising lack of research concentrating on how social inequality manifests as differences between parts of cities, especially outside of the U.S. That is mostly due to insufficient available data. In this paper, we propose a methodology for measuring the relative inequality between city districts by using the average prices of residential properties in various parts of the city, and assessing their relative difference. This approach has several advantages, as property listings are often readily available even in cities where income data is not. This methodology has potential for measuring developments in inequality in a much wider range of cities. As a proof of concept, we apply this methodology to property prices in Prague during the period 2003–2012 to identify a trend of either growing or decreasing inequality among individual parts of the city. We have found that during this period the disparity has grown only 5.97%, which means the overall growth of disparity between the city districts was negligible.     

Residential segregation of visible minorities in Canada's gateway cities

Although the influx of visible minority immigrants has created an atmosphere of diversity and multicultural‐ism in Canada's three major gateway cities, Montreal, Toronto and Vancouver, immigration has also produced metropolitan landscapes of fragmentation and ethnic separation. The objective of this study is to compare the residential patterns of visible minority populations in Montreal, Toronto and Vancouver, using a rigorous and consistent method that examines the temporal and spatial nature of segregation and its links to local housing characteristics. The paper reviews the literature on models of urban separation, and ethnic and visible minority segregation in Canadian cities, and develops four propositions regarding expected residential patterns and concentrations of visible minorities. It tests these propositions using an analysis of 1986, 1991 and 1996 Census data, in which residential patterns in the three cities are examined and related to the distribution of different types of housing. Our findings confirm previous research results of fragmentation and dispersal, but we uncover decisive differences between cities. Bien que l'afflux d'immigrants appartenant à des minorités visibles ait créé un climat de diversité et de multiculturalisme dans trois des principales portes d'entrée au Canada, à savoir Montréal, Toronto, Vancouver, il n'en reste pas mains que cet afflux a aussi produit des paysages métropolitains de fragmentation et séparation ethniques. L'objectifde cette étude est de comparer les modèles résidentiels des populations minoritaires visibles de Montréal, Toronto et Vancouver; pour ce, nous avons utilisé une méthodologie rigoureuse qui examine la nature de cette ségrégation, du point de vue temporel et spatial ainsi que ses liens avec les caractéristiques des habitats locaux. L'article fait une recension des écrits portant sur les modèles de séparation urbaine, ainsi que sur la ségrégation des minorités ethniques et visibles. II développe quatre propositions concernant les modèles résidentiels et les concentrations de minorités visibles anticipés. L'article vérifie ces propositions à partir de l'analyse des données du recensement des années 1986, 1991 et 1996, dans lesquelles les modèles résidentiels étaient étudiés et mis en rapport avec la distribution des différents types d'habitat. Nos conclusions confirment les résultats de recherches antérieures sur la fragmentation et la dispersion, mais dévoilent en même temps des différences cruciales entre les villes.     

Income inequality across Canadian provinces in an era of globalization: explaining recent trends

In this article, I use panel data methods to investigate possible factors influencing recent trends in income inequality across Canadian provinces. The ratio of the income share of the highest-to-lowest quintiles and the Gini coefficient of total income are used as measures of inequality. Both point to rising levels of inequality from 1981 to 1999, especially during the 1990s, and the estimation results suggest that several factors have had significant effects on such an increase. In particular, an increase in international trade, technological change, educational heterogeneity, and the unemployment rate are found to contribute to greater inequality. Deindustrialization and declining government transfer payments to persons are also factors explaining the rise in inequality. In contrast, an increase in the female labour force participation rate appears to have dampened inequality. There is also some evidence of a negative association between de-unionization and inequality while no significant association is found between inequality and other demographic shifts, such as immigration and the share of the population over the age of 65.     

20世纪30年代中国农业雇工收入地区差异研究

本文采用卜凯1929—1933年所做的中国农村调查数据,用基尼系数法计算了我国不同地区农业雇工平均收入水平及差距,并采用非参数的高斯核密度估计方法分析农业雇工收入分布情况及影响机制。研究表明:20世纪30年代农业雇工收入水平地区差异性客观存在但并未出现两极分化;农业雇工平均收入水平按地区发展状况呈阶梯状递减趋势,地区内部农业雇工收入差距与地区经济发达水平大体呈正U型发展态势;东、中、西部地区之间发展的不均衡性是导致全国农业雇工收入差距较大的重要因素。     

The Social and Economic Performance of Australia's Large Regional Cities and Towns: Implications for Rural and Regional Policy

Australia's large regional cities and towns display wide variation in how they are adjusting to the socio‐economic transitions occurring in Australia. That variation is exposed using a multi‐variate model analysing performance on a range of socio‐economic variables over the decade 1986 to 1996 for 122 cities and towns with populations of 10 000 and above at the 1996 census. Those places are classified into seven clusters of community performance reflecting opportunity/vulnerability, and their spatial patterns are mapped. The resulting framework is then used to show how the recent geography of the socio‐economic performance of the large regional cities and towns has a distinctive selectivity and contributes to opportunity in some places and the vulnerable performance of others. The influence of that selectivity can be seen in the mismatched geographic patterns evident from an analysis of shares of national population and employment change, investment in non‐residential construction, levels of welfare dependency, and the ratio between household income tax generation and transfer benefits received. The paper uses the insights drawn from that analysis to pose questions suggesting the need to rethink national policy perspectives for addressing change in non‐metropolitan Australia.     

Transitions to Formality and Declining Inequality: Argentina and Brazil in the 2000s

Although inequality and labour informality continue to be distinctive characteristics of Argentina and Brazil, during the last decade the two countries have been successful in reversing the negative trends of the 1990s. This article presents a comparative analysis of the labour formalization process that took place in Argentina and Brazil during the 2000s. It studies the flows towards labour formality, what caused them, and the interrelations of this process with the changes that occurred in labour institutions and the decline in income inequality. The study contributes to two debates: the role of labour market flexibilization in employment formalization, and the decline in income inequality. Most of the literature emphasizes the evolution of returns to education; this study complements this approach by analysing the contribution of formalization to the decline in inequality in Argentina and Brazil. The results show that labour formalization has reached all categories of workers, that it has been accompanied by real minimum wage increases, and that it has had an equalizing effect.     

西部大城市居民通勤特征及其与城市空间结构的关系研究——以成都市为例

以成都市为实证研究对象,在大规模问卷调查的基础上,对西部大城市居民通勤基本特征进行了研究。分析发现,西部大城市居民通勤方式以公共交通为主,选择私家车作为通勤工具的比例较高;大部分居民的通勤时间在30分钟以内,通勤距离小于5km。和北京、广州等东部大城市相比,西部大城市职住分离现象还不是非常严重;不同属性居民的通勤时间存在差异,西方空间错位假说反映的城市社会空间不平等现象在中国西部大城市同样存在并逐步显化;通勤空间组织特征与城市结构以及城市功能分区存在密切的关系;西部大城市的快速发展对居民日常通勤影响较大。     

INCOME INEQUALITY,ECONOMIC GROWTH,AND THE DISTRIBUTION OF INCOME GAINS: EVIDENCE FROM THE U.S. STATES*

ABSTRACT This paper first investigates a relationship between economic growth and income inequality using U.S. states data, a state cost‐of‐living deflator, and nonlinearity. It then explores the distribution of income gains among different income groups. We find that the impact of inequality on growth is nonlinear. Lowering inequality or increasing it substantially reduces growth; thus stable inequality may be good for growth. Economic growth affects incomes of the poor, the middle‐income group, and the rich similarly with the elasticity of one. Education and labor market policies become important in promoting growth and improving income gains of the poor.     

Divided by faith—The impact of religious affiliation on ethnic segregation

Abstract

This paper re-examines a theme that has long permeated human geography research—that of ethnic minority segregation. However, this re-examination is carried out with an awareness of the internal religious composition of ethnic populations. The paper contends that religion is an important factor that needs to be considered in any understanding of ethnic segregation. This argument is supported by an investigation of Indian and Pakistani residential segregation in the Scottish cities of Dundee and Glasgow. This investigation assesses whether Indian residents of different faiths (Hindu, Muslim and Sikh) have divergent experiences of segregation. The concept of segregation is further explored by using the P? segregation index alongside the Index of Dissimilarity (ID). This highlights the everyday realities of segregated ethnic-faith group geographies in terms of neighbourhood interaction and thus investigates the degree to which ethnic-faith groups are segregated from each other as well as from the overall population.