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- Billari, Francesco, et al.
(författare)
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Approaching the limit : Long-term trends in late and very late fertility
- 2007
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Ingår i: Population and Development Review. ; 33:1, s. 149-170
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Tidskriftsartikel (refereegranskat)abstract
- In this article we discuss trends in the limits to late childbearing, their determinants and potential implications from an empirical long-term perspective. Although the high levels observed in non-contracepting populations have not been reached, fertility in Europe at ages 40+ and 45+ has increased substantially in recent years. This trend received considerable attention, especially in combination with the emergence of new reproductive technologies and often low levels of general fertility. Nevertheless, physiological studies agree on the fact that age limits to childbearing, at least for women, have not shifted to later ages. Our empirical analyses of high-quality long-term data from Sweden document an increase in the absolute and relative number of births at ages 40+ and 45+, together with an increase in first birth occurrence-exposure rates at ages close to 40.
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| 2. |
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| 3. |
- Mutgan, Selcan, 1984-
(författare)
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Free to Choose? : Studies of Opportunity Constraints and the Dynamics of School Segregation
- 2021
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- As a result of the negative consequences and persistence of school segregation, its causes have received a great deal of scholarly attention across a range of disciplines. However, the existing research has tended to overlook those aspects of the segregation process that lie beyond the choice of the individual. This thesis concerns itself with the way in which opportunities are influenced and thereby constrained by hard-to-change macro structures such as the spatial distribution of individuals and organizations, individuals’ social network characteristics, and population composition. To this end, the four chapters presented in the thesis focus on the key actors involved (i.e., parents, teachers, and organizations), their decisions, and how their actions are moderated by the structures in which they are embedded. All four chapters use Sweden as the empirical case, and they utilize the rich data provided by Swedish population registers.Essay I analyzes the role played by parents’ ethnicity-related school preferences in the ethnic segregation of the school system, and shows that opportunity structures are an important moderator of the effects of preferences on school segregation. By combining statistical analyses of the school choices made by all parents of compulsory school students in the Stockholm region during the years 2008 to 2017 with large-scale empirically calibrated agent-based simulations, the study shows that preferences tend to be trumped by opportunities. Although parents have ethnicity-related preferences, and although these preferences vary between different ethnic groups, parental preferences have little impact on the extent of school segregation. The main drivers of school segregation are rather to be found in the ethnic segregation of the housing market and the geographic location of schools.Given the importance of residential segregation for school segregation, Essay II examines how residential segregation has evolved in Sweden over the last three decades. Building on entropy-based segregation measures, the study analyzes patterns of income segregation between and within income groups along different socio-demographic dimensions —migration background and family type. The findings show that the rise in income inequality witnessed over the last 30 years has been accompanied by a sharp increase in income segregation, especially for those in the bottom quartile of the income distribution. Moreover, the results show that income segregation is more extensive, and has increased at a higher rate, among individuals with children than among individuals with no children.Essay III examines school segregation from an organizational point of view and focuses on “school closure” as a desegregation mechanism. Using large-scale simulation models calibrated using data on all schools and students in Stockholm municipality, the study examines how the closure of a school affects segregation levels, and how this effect varies with the characteristics of the closed school and the criteria used to allocate students from the closed school to other schools. The analyses show that the degree to which closing a school changes the level of segregation varies considerably between schools, and that the ethnic composition of nearby schools is an important moderator of the effect of a school closure.Essay IV examines network dependencies in the school choices of teachers in Stockholm’s upper secondary education market during the years 2000 to 2010. Using stochastic actor-oriented models, this study focuses on the factors associated with teachers’ labor market mobility between public- and private-sector schools. Controlling for various school characteristics, such as student and teacher composition, and the work environment, the results show that networks—defined as the affiliation networks formed via links to former and current co-workers—are important for the within- and between-sector school mobility of teachers.In summary, the four studies together show that individuals’ choices are considerably constrained by their opportunities. A segregated residential market determines the school opportunities available to parents, and the differentiation between public and private schools affects the workplace decisions of teachers. Overall, differences in opportunities moderate the potential effects of individual preferences and tend to reproduce existing segregation patterns.
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| 4. |
- Vikat, Andres, et al.
(författare)
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Generations and Gender Survey (GGS) : Towards a better understanding ofrelationships and processes in the life course
- 2007
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Ingår i: Demographic Research. - 1435-9871. ; 17:14, s. 389-440
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Tidskriftsartikel (refereegranskat)abstract
- The Generations and Gender Survey (GGS) is one of the two pillars of the Generations and Gender Programme designed to improve understanding of demographic and social development and of the factors that influence these developments. This article describes how the theoretical perspectives applied in the survey, the survey design and the questionnaire are related to this objective. The key features of the survey include panel design, multidisciplinarity, comparability, context-sensitivity, inter-generational and gender relationships. The survey applies the life course approach, focussing on the processes of childbearing, partnership dynamics, home leaving, and retiring. The selection of topics for data collection mainly follows the criterion of theoretically grounded relevance to explaining one or more of the mentioned processes. A large portion of the survey deals with economic aspects of life, such as economic activity, income, and economic well-being; a comparably large section is devoted to values and attitudes. Other domains covered by the survey include gender relationships, household composition and housing, residential mobility, social networks and private transfers, education, health, and public transfers. The third chapter of the article describes the motivations for their inclusion. The GGS questionnaire is designed for a face-to-face interview. It includes the core that each participating country needs to implement in full, and four optional sub-modules on nationality and ethnicity, on previous partners, on intentions of breaking up, and on housing, respectively. The participating countries are encouraged to include also the optional sub-modules to facilitate comparative research on these topics.
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