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Pop digests

PopDigests

PopDigests are short, comprehensive summaries of research results with a link to the original publication (if accessible online). This allows population experts and other interested audiences to be able to easily access information to the latest research results. 

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Childcare Availability Has Substantial Positive Effects on Fertility Among Dual-Earner Couples in Belgium
Using detailed longitudinal census and register data from the 2000s combined with childcare coverage rates for 588 municipalities in Belgium, a new study by Jonas Wood and Karel Neels from the Centre for Longitudinal and Life-Course Studies at the University of Antwerp indicates clear and substantial positive effects of local formal childcare provision on the likelihood of having a child among dual-earner couples, especially when considering becoming a parent for the first time.

Using longitudinal census and register data combined with childcare coverage rates for 588 municipalities in Belgium, Wood & Neels found that local formal childcare provision has a clear and substantial positive effect on the likelihood of having a child among dual-earner couples.

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How Different is Male from Female Fertility?
In a brand-new and critical study, Bruno Schoumaker explored vital statistics, surveys, and censuses from 163 countries to provide a broad overview of male fertility around the world and over time, and to identify the factors leading to differences between male and female fertility levels and trends.

In a brand new and critical study, Bruno Schoumaker explored vital statistics, surveys and censuses from 163 countries to provide a broad overview of male fertility around the world and over time, and to identify the factors leading to differences between male and female fertility levels and trends.

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Highly Educated and Living Alone
A study by Glenn Sandström and Lena Karlsson used data from the Generations and Gender Survey to see if there is a connection between one’s educational level and whether one lives alone.

Glenn Sandström and Lena Karlsson used data from the Generations and Gender Survey and found that in countries considered more gender equal, those with a higher education are less likely to live alone. But in less gender equal countries, the opposite is true with higher educated people more likely to live alone.

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Are Married People Happier?
Numerous studies have been published that have examined subjective wellbeing (SWB) and marriage status, finding that married people tend to have a higher SWB. But in today’s society, more couples are opting for cohabitation, which includes many benefits associated with marriage. This then leaves the question of whether individuals who cohabit have similar levels of SWB as married people.

Perelli-Harris et al. investigated whether individuals who cohabit have similar levels of subjective wellbeing (SWB) as married people. They studied events and characteristics correlated with entrance into marriage; whether marriage may be more advantageous for those with a lower or higher tendency to marry; and, finally, whether there is variation by country and gender between partnership type and SWB.

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Engagement in the Country of Origin Matters Little for Recent Migrants’ Second-Language Proficiency
In 2016, many Turkish migrants living in Europe expressed their loyalty towards their country of origin in the wake of the attempted military coup. This triggered various media outlets to make allegations about engagement in the country of origin hampering integration.

Nella Geurts (Radboud University) & Marcel Lubbers (Netherlands Interdisciplinary Demographic Institute/KNAW/University of Groningen) investigated the relationship between migrants’ engagement with the country of origin and second-language proficiency from a quantitative perspective.

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Have Mortality Differences Between East and West Germany Been Overcome?
Due to the division of Germany during the Cold War, former East and West Germany have provided demographers with a ‘natural experiment’, especially when studying mortality. Research by Michael Mühlichen used this idea to carry out a study on how mortality rates have developed in two German states since reunification with specific focus on premature mortality.

Research by Michael Mühlichen studied how mortality rates have developed in two German states since reunification with specific focus on premature mortality. Using official population and cause-of death statistics for Germany, he found that premature mortality has decreased rapidly since reunification, especially in the east.

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Birth Weight Matters for Both Short- and Long-Term Health Outcomes
To date, a large number of researchers have documented associations between lower birth weight and a range of health problems later in life. However, for a substantial amount of existing studies, it is unclear whether these associations reflect causality. Aiming at providing causal evidence in this field of research, Jonas Helgertz (University of Minnesota and Lund University) and Anton Nilsson (Lund University) analysed full-population Swedish register data on siblings and twins born between 1973 and 1994, and followed until 2011.

Jonas Helgertz (University of Minnesota and Lund University) and Anton Nilsson (Lund University) analysed full-population Swedish register data on siblings and twins born between 1973 and 1994, and followed until 2011. This is one of the first studies to look at the effect of birth weight on sick days in adulthood.

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Reforms to Boost Student Mobility Are Not Helping the Lower Social Class in Italy
Student mobility is an important yet neglected component of social mobility: In principle, it could foster social mobility, but its role in preserving or dismantling social inequalities is still largely under-investigated in Europe. Besides the fact that higher education reforms at the European Union (EU) and national levels have incentivised young people to study abroad from their home region, its impact on social mobility is yet to be understood.

Student mobility could foster social mobility, but its role in preserving or dismantling social inequalities is still largely under-investigated in Europe. Besides the fact that higher education reforms at the European Union (EU) and national levels have incentivised young people to study abroad from their home region, its impact on social mobility is yet to be understood.

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Does Family Structure Relate to Children’s Physical Health?
A new study based on the Millennium Cohort Study, a nationally-representative longitudinal survey of children born in 2000-2 and living in the United Kingdom, explored the association between family structure trajectories and early physical health, as opposed to more commonly reported outcomes such as cognitive development or behaviour in older children.

A new study based on the Millennium Cohort Study, a nationally-representative longitudinal survey of children born in 2000-2 and living in the United Kingdom, explored the association between family structure trajectories and early physical health, as opposed to more commonly reported outcomes such as cognitive development or behaviour in older children.

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Is Climate Change Affecting Trends in Mortality?
As a consequence of the climate becoming warmer, the world population is more exposed to moderate and extreme warm temperatures and less exposed to moderate and extreme cold temperatures, which may affect health outcomes. Many studies have shown both a negative and positive long-term net effect in mortality depending on the location and magnitude of the warming. However, most of these analyses did not take into account how vulnerable individuals are to these changes.

Daniel Devolder and Joan Ballester (Centre for Demographic Studies, Autonomous University of Barcelona, and Barcelona Institute for Global Health) explored mortality and temperature data from the Spanish National Institute of Statistics and the European Climate Assessment and Dataset project, respectively. The study, published in the prestigious journal The Lancet Planetary Health, is the first to comprehensively assess the impact of the 1°C increase in ambient temperature, observed in Spain since 1980, on mortality due to cardiovascular disease by sex and age.