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  • Project contributors: Graham E, Feng Z, Fiori F, Boyle P,

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    Fertility and Family


    This project examined whether where women live influences the likelihood of them starting a family. Spatial variations in fertility have been noted within several European countries, including Britain. In particular, low fertility rates tend to be clustered in central urban areas whereas the surrounding peri-urban fringes contain pockets of relatively high fertility. These findings led the research team to hypothesise that there are important local 'cultures' of fertility, which influence an individual's perception of normal or desirable fertility behaviour through mechanisms of social learning. The main objectives of the research were to define and measure local 'cultural' contexts that are meaningful in relation to fertility behaviour, and then link this geography to individual fertility histories from the British Household Panel Survey (BHPS). In addition, it investigated whether there is a significant association between local context and time to first birth after accounting for a range of other factors, including characteristics of housing and selective residential relocation.

    The first stage of the research used geo-coded small area data from birth registration and the 2001 census to identify spatial clusters of higher, average and lower fertility throughout Britain. Spatial patterns of fertility were identified using data for 40 thousands small areas in Britain. The G* Statistic (Getis and Ord 1996) was used, the results were mapped using GIS software and a classification of local areas was produced.

    In the second stage, local contexts were linked to individual fertility histories from the BHPS (1999-2008) to produce a longitudinal dataset for analysis of the timing of first births. The study focused on a sub-sample of women of reproductive age (16 to 44) who were childless and not pregnant in 1999. Their risk of conception leading to first births between 1999 and 2008 was observed and resulted in an analytical sample of ~3800 women and 665 events during the observation period.

    Findings have confirmed differences between urban and rural areas, and by settlement size. This had already been observed in other European countries, with lower fertility in cities and higher fertility in less densely populated areas. Women living in local areas within each of these fertility categories have distinctive age-specific fertility profiles. In lower fertility areas, for example, women on average have births later and their fertility is lower at all ages compared to those in higher fertility areas. This local fertility geography has the potential to influence the fertility behaviour of individuals who live in (or move into) these areas through social learning.

    The findings indicate that individual life paths respond to a variety of social processes operating at different scales, and that these influences vary by birth order. They support the hypothesis that local fertility context is significantly associated with time to first birth. This is the case even when demographic and socio-economic characteristics of women and their partners, along with housing conditions and patterns of spatial mobility, are taken into account. However, we find no evidence that local fertility contexts influence transitions to higher order births.

    Therefore, local social interactions, including social learning, may be playing an important role in shaping individual fertility behaviour through their influence on the transition to first birth.

    Publications & Activities

    Approaches to understanding sub-national spatial variations in fertility: the example of Britain
    International Conference on Population Geographies (2013). (Groningen, Netherlands)
    Authors: Feng Z, Graham E, Fiori F,

    Spatial variations in fertility within Britain: residential context, selective migration and social norms
    Giornate di Studio sulla Populazione (2013). (Bressanone, Italy)
    Authors: Fiori F, Graham E, Feng Z,

    Geographical variations in fertility, social norms, and the timing of births across the life course: evidence from Britain
    CPC Brown Bag (2012). (Ladywell House, Edinburgh)
    Authors: Graham E, Feng Z,

    Geographical variations in fertility: does context influence first birth timing in Britain?
    I-power Seminar (2012). (University of St Andrews)
    Authors: Graham E, Feng Z,

    Geographical context and first birth in Britain
    International Pairfam Conference on Fertility over the Life Course (2012). (University of Bremen, Germany)
    Authors: Fiori F, Graham E, Feng Z,

    Exploring the geography of fertility in Scotland
    British Society for Population Studies Annual Conference (2011). (University of York)
    Authors: Fiori F, Graham E, Feng Z,

    Family formation and local cultures of fertility
    General Record Office Scotland (2011). (Ladywell House, Edinburgh)
    Authors: Graham E, Feng Z, Wilson C, Fiori F,

    Examining geographical effects on the formation and migration of mixed-ethnic unions using longitudinal data
    ESRC Research Methods Festival (2010). (St Catherine's College, Oxford, UK)
    Authors: Feng Z, Van-Ham M,

    Are mixed ethnic unions more likely to dissolve than coethnic unions, and does neighbourhood ethnic mix have an influence?
    British Society for Population Studies (BSPS) Annual Conference (2010). (University of Exeter)
    Authors: Feng Z, Boyle P, Van-Ham M, Raab G,


    Geographical variations in the likelihood and timing of having children in Britain Demotrends website. 2013
    CPC Briefing Paper 12: Geographical variations in the likelihood and timing of having children in Britain was mentioned in demotrends blog.