MZ

M.D. Zwiers

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9 records found

Journal article (2018) - Matt Vogel, Merle Zwiers
A large body of literature suggests that neighborhood socioeconomic disadvantage is positively associated with out-mobility. However, prior research has been limited by (1) the inability to account for endogenous factors that both funnel families into deprived neighborhoods and increase their likelihood of moving out, and (2) the failure to consider how the spatial distribution of socioeconomic deprivation in the broader community conditions the effect of local deprivation on mobility. This paper attends to this gap in the literature by examining how changes in socioeconomic disadvantage between sending and receiving neighborhoods and the spatial patterning of deprivation in the areas surrounding destination neighborhoods influence future mobility among a representative sample of American adolescents. We employ a modeling strategy that allows us to examine the unique and separable effects of local and extralocal neighborhood disadvantage while simultaneously holding constant time-invariant factors that place some youth at a greater likelihood of experiencing a residential move. We find that moves to more impoverished neighborhoods decrease the likelihood of subsequent mobility and that this effect is most pronounced among respondents who move to neighborhoods surrounded by other similarly deprived neighborhoods. In this sense, geographical pockets of disadvantage strengthen the mobility-hampering effect of neighborhood deprivation on future mobility. ...
Neighborhoods represent a scale at which inequalities are reflected in the unequal spatial distribution of ethnic and income groups across urban space. However, neighborhoods are not static entities and spatial patterns of socioeconomic and ethnic inequality shift over time as a result of processes of neighborhood change. This dissertation has adopted a longitudinal approach to analyze patterns of neighborhood change on a relatively low spatial scale. This dissertation illustrates that neighborhoods remain relatively stable over time in their socioeconomic and ethnic status and that change takes several decades to take effect. This dissertation finds that neighborhoods exhibit a strong degree of path-dependency and demonstrates how the housing stock influences neighborhood trajectories. In addition, it shows how large-scale changes to the housing stock in the context of urban restructuring affect residential mobility and neighborhood upgrading. This dissertation also reveals the ways in which different population dynamics interact to inhibit or generate neighborhood change to reproduce socio-spatial inequalities. Moreover, the innovative methods that are explored in this dissertation contribute to broadening the scope of statistical methods for the longitudinal analysis of neighborhood change. ...
Journal article (2018) - Merle Zwiers, Maarten van Ham, Reinout Kleinhans
In the last few decades, many governments have implemented urban restructuring programmes with the main goal of combating a variety of socioeconomic problems in deprived neighbourhoods. The main instrument of restructuring has been housing diversification and tenure mixing. The demolition of low-quality (social) housing and the construction of owner-occupied or private rented dwellings was expected to change the population composition of deprived neighbourhoods through the in-migration of middle- and high-income households. Many studies have been critical with regard to the success of such policies in actually upgrading neighbourhoods. Using data from the 31 largest Dutch cities for the 1999 to 2013 period, this study contributes to the literature by investigating the effects of large-scale demolition and new construction on neighbourhood income developments on a low spatial scale. We use propensity score matching to isolate the direct effects of policy by comparing restructured neighbourhoods with a set of control neighbourhoods with low demolition rates, but with similar socioeconomic characteristics. The results indicate that large-scale demolition leads to socioeconomic upgrading of deprived neighbourhoods as a result of attracting and maintaining middle- and high-income households. We find no evidence of spillover effects to nearby neighbourhoods, suggesting that physical restructuring only has very local effects. ...

Spatial patterns of increasing ethnic diversity

Journal article (2018) - Merle Zwiers, Maarten van Ham, David Manley
Western cities are increasingly ethnically diverse, and in most cities, the share of the population belonging to an ethnic minority is growing. Studies analysing changing ethnic geographies often limit their analysis to changes in ethnic concentrations in neighbourhoods between 2 points in time. Such a temporally limited approach limits our understanding of pathways of ethnic neighbourhood change and of the underlying factors contributing to change. This paper analyses full trajectories of neighbourhood change in the 4 largest cities in the Netherlands between 1999 and 2013. Our modelling strategy categorises neighbourhoods based on their unique growth trajectories of the ethnic population composition, providing insight in processes of ethnic segregation and its drivers. Our main conclusion is that the ethnic composition in neighbourhoods remains relatively stable over time. We however find evidence for a slow trend towards deconcentration of ethnic minorities and increased population mixing in most neighbourhoods. Spatial mixing appears to be driven by the selective mobility patterns of the native Dutch population as a result of urban restructuring programmes. However, these pathways towards deconcentration are mitigated by processes of ethnic natural growth that reinforce existing patterns of segregation. Despite an increasing inflow of the native Dutch into ethnic concentration neighbourhoods, segregation at the top and bottom ends of the distribution seems to be persistent: High concentrations of ethnic minorities in disadvantaged neighbourhoods versus high concentrations of the native population in more affluent neighbourhoods continue to be a feature of Dutch cities. ...
Discussion paper (2017) - Merle Zwiers, Maarten van Ham, Reinout Kleinhans
In the last few decades, urban restructuring programs have been implemented in many Western European cities with the main goal of combating a variety of socioeconomic problems in deprived neighborhoods. The main instrument of restructuring has been housing diversification and tenure mixing. The demolition of low-quality (social) housing and the construction of owner-occupied or private-rented dwellings was expected to change the population composition of deprived neighbourhoods through the in-migration of middle and high income households. Many studies have been critical with regard to the success of such policies in actually upgrading neighborhoods. Using data from the 31 largest Dutch cities for the 1999 to 2013 period, this study contributes to the literature by investigating the effects of large-scale demolition and new construction on neighborhood income developments on a low spatial scale. We use propensity score matching to isolate the direct effects of policy by comparing restructured neighborhoods to a set of control neighborhoods with low demolition rates, but with similar socioeconomic characteristics. The results indicate that large-scale demolition leads to socioeconomic upgrading of deprived neighborhoods through the in-migration of middle and high income households. We find no evidence of spillover effects to nearby neighborhoods, suggesting that physical restructuring only has very local effects. ...

Spatial Patterns of Increasing Ethnic Diversity

Discussion paper (2016) - Merle Zwiers, Maarten van Ham, David Manley
Western cities are increasingly ethnically diverse and in most cities the share of ethnic minorities is growing. Studies analyzing changing ethnic geographies often limit their analysis to changes in ethnic concentrations in neighborhoods between two points in time. Such a static approach limits our understanding of pathways of ethnic neighborhood change, and of the underlying factors contributing to change. This paper analyzes full trajectories of neighborhood change in the four largest cities in the Netherlands between 1999 and 2013. Our modelling strategy categorizes neighborhoods based on their unique growth trajectories of the ethnic population composition, providing a longitudinal view of ethnic segregation. Our results show that the ethnic composition in neighborhoods remains relatively stable over time. We find evidence for a slow trend towards deconcentration of ethnic minorities and increased (spatial) population mixing in most neighborhoods. We show how residential mobility decreases segregation, while natural population growth tends to reinforce segregation. While the ethnic minority presence in cities grows, there is a substantial share of neighborhoods which can be identified as white citadels; characterized by a stable large native population, with high incomes and high house values. These neighborhoods seem to be inaccessible to ethnic minorities, which illustrates the spatial manifestation of exclusionary elitism in increasingly ethnically diverse cities. ...
Discussion paper (2016) - Maarten van Ham, Tiit Tammaru, Elise de Vuijst, Merle Zwiers
Income inequality is increasing in European cities and this rising inequality has a spatial footprint in cities and neighbourhoods. Poor and rich people are increasingly living separated and this can threaten the social sustainability of cities. Low income people, often with an ethnic minority background, can get cut off from important social networks and mainstream society, and this can lead to social unrest. Increasing inequality and socio-economic segregation is therefore a major concern for local and national governments. Socio-economic segregation is the outcome of a combination of inequality and poverty, and the spatial organisation of urban housing markets. Poverty, and living in poverty concentration neighbourhoods is transmitted between generations and neighbourhood poverty is reproduced over time through to the residential mobility behaviour of households. Urban policy often focusses on reducing segregation through physical measures in cities, such as demolishing houses in deprived neighbourhoods and replacing them with housing for the middle classes. Such policies will not solve the underlying causes of segregation, but only redistribute poverty over cities. Policy initiatives should first of all focus on reducing inequality by creating equal opportunities for people and invest in education and training. Inclusive growth strategies should combine both people-based and area-based policy measures. ...

An Approach for Analysing Neighbourhood Change

Journal article (2016) - Merle Zwiers, Reinout Kleinhans, Maarten van Ham
The gap between wealthy and disadvantaged neighbourhoods seems to be increasing in many contemporary Western cities. Most studies of neighbourhood change focus on specific case-studies of neighbourhood downgrading or gentrification. Studies investigating socio-spatial polarisation in larger urban areas often compare neighbourhoods at two points in time, neglecting the underlying dynamic character of neighbourhoods. In the current literature, the question if neighbourhoods with similar characteristics experience similar changes over time remains unanswered. As a result, it is unclear why some neighbourhoods appear to be more prone to change than others. In this paper, we propose a dual approach for analysing neighbourhood change. We argue that researchers should both adopt a long-term perspective (20–40 years), because significant changes are only visible after longer periods of time, and focus on more detailed neighbourhood trajectories to understand how neighbourhood change is interrelated with context. Focussing on Dutch neighbourhoods over the period 1971–2013, we analyse the role of physical characteristics on low-income neighbourhood trajectories using an innovative visualisation technique. A tree-structured discrepancy analysis allows for the visualisation of complete neighbourhood pathways, enabling the analysis of complex, contextualised patterns of change. We find that the original quality of neighbourhoods and dwellings seems to be an important predictor for future neighbourhood trajectories, indicating a high level of path-dependency. ...