Patrick Gerland

@pgerland.bsky.social

Focus on demographic estimation problems/methods and projections, especially in Africa and Asia. https://www.researchgate.net/profile/Patrick_Gerland/

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Counting the dead to help the living: Inaugural Lecture by Prof. Prabhat Jha, Head of Department, Oxford Univ,, Nuffield Professor of Population Health, on Wednesday, 18 March 2026, from 5:00–6:00 pm (UK time). Accessible online via link below just before 5:00 pm UK. vimeo.com/event/485875...

Counting the dead to help the living

Inaugural Lecture Presented by Prabhat Jha, Head of Department, Nuffield Professor of Population Health 18 March 2026

vimeo.com

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Are we letting demographic data become just another commodity? New paper by Edith Darin warns against the privatization of population stats. It’s time to treat these data as shared resource—a "common good"—not trade secret. journals.sagepub.com/doi/10.1177/... #OpenData #PublicGood #DataGovernance

Sage Journals: Discover world-class research

Subscription and open access journals from Sage, the world's leading independent academic publisher.

journals.sagepub.com

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Panic over falling fertility? 📉 A new Lancet editorial argues against coercive "quick fixes" to reverse declining birth rates. Instead of forcing a baby boom, the focus must shift to adapting global health systems for an ageing population. 🌍🏥 #GlobalHealth #Fertility #Demographics

Responding to declining global fertility rates

The levying of a 13% tax on condoms sold in China from Jan 1 is the country's latest policy aimed at reversing its falling total fertility rate (TFR; the average number of children a woman might expec...

thelancet.com

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The 2025 revision introduces a major innovation: integrating geospatial methods via the harmonized Degree of Urbanization with national urban definitions. This dual approach ensures consistent global measurement and sharper insights into settlement patterns for sustainable development

PPatrick Gerland@pgerland.bsky.social · 9mo ago

Today, launching the World Urbanization Prospects 2025 with new UN estimates and projections of urbanization for 237 countries and areas of the world & 12,000+ cities with 50,000+ inhabitants in 2025. www.un.org/development/... - see also new online datasets and plots: population.un.org/wup/

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Today, launching the World Urbanization Prospects 2025 with new UN estimates and projections of urbanization for 237 countries and areas of the world & 12,000+ cities with 50,000+ inhabitants in 2025. www.un.org/development/... - see also new online datasets and plots: population.un.org/wup/

Launch: World Urbanization Prospects 2025 | Population Division

The World Urbanization Prospects 2025 will be launched on Tuesday, 18 November 2025 at 12:45 (EST).

un.org

🚨 New paper: when researchers study epidemics, disasters, or conflicts but don't know how many people died, they often subtract pre and post population estimates or do a crude projection. Unfortunately, this almost never provides an accurate death toll 🧵 www.demographic-research.org/Volumes/Vol5...

Demographic Research - Can we estimate crisis death tolls by subtracting total population estimates? A critical review and appraisal (Volume 52 - Article 23 | Pages 741–796)

Volume 52 - Article 23 | Pages 741–796

demographic-research.org

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See also childmortality.org?indicator=SBR from UN-IGME for global and country data and internationally comparable estimates of stillbirth rates, neonatal and infant mortality available in an harmonized way. See also PDF reports and articles at the bottom of the home page.

CME Info - Child Mortality Estimates

childmortality.org

Jonas Schöley@jschoeley.com · last yr.

Thank you for stating the issue of definitions so clearly. It gets very tricky with comparisons of stillbirths. If you want to get into that, maybe we could work together. @maxikniffka.bsky.social, others and me were able to do a harmonized analysis for Europe. academic.oup.com/eurpub/artic...

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Using satellite imagery and advanced spatial modelling we are collaborating with #UNHCR to innovate mapping of displaced populations and unlocking the power of registration data. By WorldPop's Dr Sarchil Qader and Edith Darin, and others. #refugees #geodata #mapping medium.com/unhcr-innova...

Smarter refugee surveys for a more effective humanitarian response

UNHCR and WorldPop are innovating the mapping of displaced populations and unlocking the power of registration data

medium.com

Choose Science. Choose Europe. A new Marie Skłodowska-Curie Actions Postdoctoral Fellowships 2025 call is now open. With a budget of €404.3 million, it will support around 1,650 researchers from Europe and beyond. Apply by 10 September → europa.eu/!fBTMgF

A graphic for the Marie Skłodowska-Curie Actions (MSCA), showing a historical portrait of Marie Skłodowska-Curie overlaid with an image of four young researchers walking down a hallway. The European Commission logo is in the top left. Text reads: "Marie Skłodowska-Curie Actions – €404.3 million to support postdoctoral researchers”