Krystof Zeman

• PhD
• Researcher at Austrian Academy of Sciences (OeAW)

Using a life-cycle perspective of cohort fertility, a clear distinction could be found concerning the degree of postponement among young adults prior to age 30 between the Nordic, Western and Southern European countries, the USA and Canada (the "West") on the one hand, and the Central and Eastern European countries (the "East") on the other. Genera...

BACKGROUND: During the COVID-19 pandemic, birth rates in most higher-income countries first briefly declined and then shortly recovered, showing no common trends afterwards until early 2022, when they unexpectedly dropped. STUDY FOCUS: We analyse monthly changes in total fertility rates in higher-income countries during the COVID-19 pandemic, with...

In the prominent political debates about population decline and ageing, short-term changes in the period total fertility rate (TFR) are the main point of reference, even though they can be heavily distorted by changes in the timing of births. Good alternatives exist, say Wolfgang Lutz, Tomáš Sobotka and Kryštof Zeman, but they are rarely used.

The first set of population projections following the Shared Socioeconomic Pathways (SSPs) was developed in 2013. These projections have found widespread use within the environmental and climate change community, among others. In 2018, an SSPs update was generated but not integrated into the SSP database. In 2021, the SSP community requested an upd...

We use monthly birth data collected by the Human Fertility Database to analyze the impact of the COVID-19 pandemic on birth trends until September 2022 in 38 higher-income countries. We also present estimates of the monthly total fertility rate adjusted for seasonality. Our analysis reveals that the pandemic led to distinct swings in births and fer...

BACKGROUND The rise in the age at first birth has been universal in low-fertility countries in the last decades. Mothers who have their first child later tend to have fewer children, and in the absence of fertility catch-up at older ages, delayed fertility contributes to cohort fertility decline. OBJECTIVE To study how changes in completed cohort...

Acknowledgements We are deeply thankful to Mikko Myrskylä for superb comments and feedback. This study would not exist without his encouragement and support. We further thank Patricia Schliecker, who provided excellent research assistance with data handling and preparation at MPIDR. We further thank Cloë Ost and Michel Willems from Statistics Belgi...

Past economic, health and policy shocks were associated with a downturn in fertility. We use monthly birth data collected by the Human Fertility Database (Short-Term Fertility Fluctuations data series) to analyze the impact of the COVID-19 pandemic on birth trends until April 2022 in 37 highly developed countries. We also present estimates of month...

In the last three decades countries of South-eastern Europe and Eastern Europe have experienced the largest population declines globally, shrinking by up to 26% between 2000 and 2019. This trend was in part driven by declining fertility rates, but even more important was outmigration to other parts of Europe. To gain a deeper insight into the long-...

Past evidence on fertility responses to external shocks, including economic recessions and the outbreaks of infectious diseases, show that people often put their childbearing plans on hold in uncertain times. We study the most recent data on monthly birth trends to analyse the initial fertility responses to the outbreak of the COVID-19 pandemic. Ou...

This contribution provides a brief structured overview of selected open-access databases and data websites developed by the Wittgenstein Centre for Demography and Global Human Capital, in some cases in cooperation with partner institutions or based on the data supplied by partner institutions. The presented databases primarily focus on fertility da...

Focus on the two components of sub-replacement i.e. postponement and recuperation. These are operationalised by the fertility levels in age groups 20-29 and 30-39 respectively. By arranging these longitudinally we define the "Life-cycle Sensitive Total Fertility Rate". Results are presented for European, American and Asian examples. Presents explan...

The European Demographic Data Sheet 2020 reviews, explores and visualises recent population trends in 45 European countries. The data sheet also provides a snapshot of the current research at the Wittgenstein Centre for Demography and Global Human Capital and collaborating researchers, with the 2020 issue focused on measuring and assessing educatio...

Data for ten European countries which provide detailed distribution of COVID-19 cases by sex and age show that among people of working age, women diagnosed with COVID-19 substantially outnumber infected men. This pattern reverses around retirement: infection rates among women fall at age 60-69, resulting in a cross-over with infection rates among m...

We provide an analysis of the main sources of data used to estimate fertility schedules in developing countries, giving special attention to Brazil. In addition to the brief history of various data sources, we present several indirect demographic methods, commonly used to estimate fertility and assess the quality of data. From the methods used, the...

In Europe and the United States, women’s educational attainment started to increase around the middle of the twentieth century. The expected implication was fertility decline and postponement, whereas in fact the opposite occurred. We analyse trends in the quantum of cohort fertility among the baby boom generations in 15 countries and how these rel...

European Demographic Data Sheet 2018: Population-Human Capital-Diversity-Inequality portrays changes in population, fertility, human capital, health, education and economic dependency across the continent. It combines tables with figures, maps and short thematic boxes, and is available at http://www.populationeurope.org/.

BACKGROUND During the 20th century the Czech Republic went through profound changes in female employment, gender roles, population and family policies, and public childcare. The educational structure of the female population changed tremendously. At the same time, completed cohort fertility fluctuated between 1.8 and 2.2 children per woman. OBJECTI...

BACKGROUND The long-term decline in cohort fertility in highly developed countries has been widely documented. However, no systematic analysis has investigated which parity contributed most to the fertility decline to low and very low levels. OBJECTIVE We examine how the contribution of changing parity progression ratios varied across cohorts, coun...

Childlessness in the central European Alpine countries of Switzerland and Austria is high by western standards: around a fifth of men and women in these countries have no children towards the end of their reproductive life. This chapter looks at variations in childlessness across six spheres: cohort, education, religion, country of birth, language,...

Almost a quarter of European women born in the first decade of the twentieth century had no children. Childlessness decreased in later cohorts, and among women born in the 1940s only one in ten, on average, remained childless. In the west, an upturn in childlessness was observed from the late 1940s cohorts, reaching an average of 15% in northern Eu...

check the recent demographic indicators, population trends, and the new website with additional content at www.populationeurope.org Should you wish to receive the print version of the poster contact the Vienna Institute of Demography and we will mail you one.

During the twentieth century, trends in childlessness varied strongly across European countries while educational attainment grew continuously across them. Using census and large-scale survey data from 13 European countries, we investigated the relationship between these two factors among women born between 1916 and 1965. Up to the 1940 birth cohor...

p>This paper examines fertility and family policies in 15 Central and East European (CEE) countries to establish firstly, likely directions of cohort fertility trends for the coming decade; and secondly, to provide an overview and analysis of family policies in CEE countries, and to assess their impact on cohort fertility trends. Demographic analys...

The Cohort Fertility and Education (CFE) database provides high-quality data on completed cohort fertility and parity distribution by level of education. The data come from censuses and large sample surveys, and cover several (mostly European) countries, i.e. countries with generally high levels of education and relatively low fertility. As the dat...

http://www.fertilitydatasheet.org Tomáš Sobotka, Kryštof Zeman, Michaela Potančoková, Jakob Eder, Zuzanna Brzozowska, Éva Beaujouan, Anna Matysiak

WIREL is a research project examining the role of religions in shaping the social and demographic structure of the population of Vienna.

Chapter 3 is the first of six that present a comprehensive science-based assessment of what we know today about the drivers of future fertility, mortality, migration, and education. This chapter concerns countries with currently low fertility. It presents and justifies assumptions for future fertility trajectories based on an overview of recent fer...

The Human Fertility Collection (HFC) is a joint project of the Max Planck Institute for Demographic Research (MPIDR) in Germany and the Vienna Institute of Demography (VID) in Austria. The HFC has been designed to supplement the Human Fertility Database (HFD) and to incorporate a variety of international fertility data that are valuable for fertili...

Across developed countries, cohorts of women born after World War II have seen a shift of childbearing towards later ages and a concomitant decline in fertility level. We study this shift using the notions of fertility postponement (fertility decline at younger ages) and subsequent recuperation (a compensatory fertility increase at higher reproduct...

This paper provides an overview of fertility data for Germany, Austria and Switzerland. Particular attention is given to the availability of order-specific fertility data. We discuss the quality of data provided by the Statistical Offices, both birth registration data and censuses or microcensuses. In addition, we explore how social science surveys...

This paper provides an overview of fertility data for Germany, Austria and Switzerland. Particular attention is given to the availability of order-specific fertility data. We discuss the quality of data provided by the Statistical Offices, both birth registration data and censuses or microcensuses. In addition, we explore how social science surveys...

This paper provides an overview of fertility data for Germany, Austria and Switzerland. Particular attention is given to the availability of order-specific fertility data. We discuss the quality of data provided by the Statistical Offices, both birth registration data and censuses or microcensuses. In addition, we explore how social science surveys...

Across developed countries, cohorts of women born after World War II have seen a shift of childbearing towards later ages and a concomitant decline in fertility level. We study this shift using the notions of fertility postponement (fertil-ity decline at younger ages) and subsequent recuperation (a compensatory fertility increase at higher reproduc...

Der folgende Beitrag gibt einen Überblick über Daten, die für fertilitätsspezifische Fragenstellungen in Deutschland, Österreich und der Schweiz verwendet werden können. Es wird zum einen die Qualität der Daten der amtlichen Geburtenstatistik, der Volkszählungen und des Mikrozensus kritisch diskutiert. Zum anderen werden auf Basis verschiedener Bef...

The Human Fertility Database (HFD) is a joint project of the Max Planck Institute for Demographic Research (MPIDR) in Rostock, Germany and the Vienna Institute of Demography (VID) in Vienna, Austria, based at MPIDR. We seek to provide free and user-friendly access to detailed and high-quality data on period and cohort fertility and thus to facilita...

Following the swift demise of the state-socialist regime in 1989, a profound transformation of family and fertility patterns has taken place in the Czech Republic. Family formation has been postponed and period fertility rates have fallen to very low levels, especially among young adults. Unmarried cohabitation has become relatively widespread and...

In this article we argue that social and economic changes in the past fifteen years have influenced distinct socio-economic categories of women differently. We show that the transition of family formation behaviours was not uniform but rather dependent on the educational level of women. We found wide differences between educational categories in te...

A dramatic change in fertility,family formation and living arrangements tookplace in the Czech Republic over the 1990s. Theestablishment of democracy, profound socialtransformation and transition to the marketeconomy affected the values and demographicbehaviour of the young Czech generation. Thispaper examines whether these demographic shiftscan be...

In this paper, we apply event history analysis to examine the possible determinants of marital disruption in the Czech Republic. We use the method of hazard regression with the baseline captured by multiple duration clocks; the event under observation is the first marital union disruption. We use the Fertility and Family Survey data from 1997, whic...

The Republic of Moldova — the second smallest country among the republics of the former USSR — is situated in the south of Eastern Europe, between Romania and Ukraine. Located in the area surrounded by deltas of Nistru, Prut and Danube rivers, it has experienced frequent changes in borders and territory size. Moldova was part of the Russian Empire...

1 General information This report documents Austrian data collected for the Human Fertility Database project, namely age-and birth order-specific data on births, data on total births by calendar month and year, and the data on exposure population (women by age and/or birth cohort and the number of live-born children). The Human Fertility Database (...

http://www.oeaw.ac.at/vid/download/edrp_2_11.pdf

Geburtenbarometer Vienna aims to provide an up-to-date monitoring of fertility in Vienna, based on a set of annual and quarterly indicators of fertility rates and regularly published summary reports. This report gives an overview of the data, methods, and indicators used and contrast main results with the data for other Austrian regions and for the...

Last revision 28 March 2011 1 General information This report documents data provided for the Human Fertility Database project for the United Kingdom. In the United Kingdom, the vital statistics data are collected by three separate statistical agencies for England and Wales, for Scotland and for Northern Ireland. In the HFD, this division into thre...

Last revision 28 March 2011 1 General information This report documents data provided for the Human Fertility Database project for the United Kingdom. In the United Kingdom, the vital statistics data are collected by three separate statistical agencies for England and Wales, for Scotland and for Northern Ireland. In the HFD, this division into thre...

KURZBESCHREIBUNG Das Geburtenbarometer Wien zielt darauf ab, ein aktuelles Fertilitätsmonitoring für Wien zur Verfü-gung zu stellen, basierend auf einem Satz jährlicher und vierteljährlicher Fruchtbarkeitsindikatoren und regelmäßigen zusammenfassenden Berichten. Der vorliegende Überblicksbericht informiert über die Daten, Methoden und die verwendet...

WARNING: Due to high migration in the inter-censal periods, the quality of population data is limited. Cohort fertility indicators for cohorts born prior to 1976 and period fertility indicators for periods prior to 1959 should be used only with special caution. Details are provided in sections 3.2 and 4.5. 1 General information This report document...