Max Planck Institute for Demographic Research

We study the structure and dynamics of populations and explore issues of political relevance, such as aging, fertility, and the redistribution of work over the life course, as well as digitization and the use of new data sources for the estimation of migration flows.

Press Release | April 23, 2026

Men Have Fewer Children Than Women

Researchers investigated whether men or women have fewer children. Using international datasets, they demonstrate that imbalances in population structure, particularly an increasing proportion of men, affect male fertility. While men used to have higher fertility than women globally, this has reversed, and women have and will have a higher fertility rate than men. The scientists offer recommendations to counteract the social implications of this trend.  More

May

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Scientific Presentations

LabTalks@­SocialDemography

Nataliia Levchuk from the Laboratory of Population Health and Enrique Acosta from the Research Group: Kinship Inequalities give a talk.   More

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Introduction to our research groups

MaxHel Center

Blog@MPIDR | Life at the Institute | April 30, 2026

My Internship at the MPIDR

Johann Behrendt was a visiting researcher at the Max Planck Institute for Demographic Research (MPIDR) in Rostock from February to April. He is currently studying psychology in Leipzig. In the MPIDR blog, he describes his experiences as a research intern gaining an insight into a scientific discipline other than his own.  More

Selected Publications

Dańko, M. J.; Wiśniowski, A.; Jasilionis, D.; Jdanov, D. A.; Zagheni, E.:

Assessing the quality of data on international migration flows in Europe: the case of undercounting   Migration Studies 12:2, 1–21. (2024)

Dierker, P.; Kühn, M.; Myrskylä, M.:

Re-partnering and single mothers' mental health and life satisfaction trajectories    MPIDR Working Paper WP-2023-001. (2023)

More Publications

Questions and Answers

Being a Researcher at the MPIDR

Working at MPIDR

Life & Research in Rostock

New Issue 1/2026 available | March 31, 2026

The Quarterly German Newsletter

PHD | April 28, 2026

Congratulations, ­­Chia-Jung Tsai!

Chia-Jung Tsai from the Laboratory of Migration and Mobility at the Max Planck Institute for Demographic Research (MPIDR), successfully defended her doctoral thesis, “Factors Shaping Public Attitudes and Responses to Refugee and Immigrant Populations: Examining the Interplay of Demographics, Media, and Contextual Influences“, at the University Pompeu Fabra. Her findings contribute to our understanding of how public opinion toward refugees and immigrants is shaped by various factors, such as the media, demographic composition, and the COVID-19 pandemic.  More

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The Max Planck Institute for Demographic Research (MPIDR) in Rostock is one of the leading demographic research centers in the world. It's part of the Max Planck Society, the internationally renowned German research society.