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Tim Riffe

@timriffe1.bsky.social

danger, demography, and data

1,861 Followers  |  1,106 Following  |  97 Posts  |  Joined: 27.09.2023
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Posts by Tim Riffe (@timriffe1.bsky.social)

Useful aside: you can find the contribution of differences in initial conditions in indices from multistate with this same Kitagawa step

25.02.2026 12:13 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Arriaga Meets Kitagawa. Life Expectancy Decomposition With Population Subgroups An Arriaga decomposition partitions differences in life expectancy into contributions from mortality rate differences in each age. A Kitagawa decomposition partitions a difference between two weighte...

Another way to use Kitagawa decomposition in demography:-) onlinelibrary.wiley.com/doi/10.1111/...

25.02.2026 12:11 β€” πŸ‘ 10    πŸ” 5    πŸ’¬ 1    πŸ“Œ 0

πŸ€—send a student or two!

25.02.2026 10:54 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Center for Demographic Studies The Demographic Studies Center (Barcelona) was created in 1984 with three main aims: promote scientific research, training and dissemination of knowledge on population dynamics.

I'll be teaching again for Barcelona Summer School of Demography, "Demography with R" 6-10 July: ced.cat/en/bcn4seaso... You can do this program in person or online. Sign up, it's fun to do demography! @cedemografia.bsky.social

25.02.2026 09:33 β€” πŸ‘ 19    πŸ” 15    πŸ’¬ 1    πŸ“Œ 1

Join us in Bologna for the 1st meeting of the EAPS WG Open Science in Demography. Program: group intro + 2h workshop led by @jschoeley.com & @akbaritabar.bsky.social. Free & open to all. Register: eaps.opensci@gmail.com
#EPC2026 #OpenScience #Demography @eaps.bsky.social @populationeu.bsky.social

24.02.2026 14:50 β€” πŸ‘ 9    πŸ” 6    πŸ’¬ 1    πŸ“Œ 0

The last part abt how measles disrupts immunity vs other infections is, imo, underappreciated (& mechanism was recently clarified). It's part of why measles vaccination was seen to help beyond just reducing measles complications - not getting measles reduces severity of subsequent infections too.

22.02.2026 18:21 β€” πŸ‘ 136    πŸ” 86    πŸ’¬ 5    πŸ“Œ 6
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Have you ever considered studying demography – also alongside your work?

Charles University in Prague is offering a part-time distance-learning programme leading to a Master's degree in Demography.

πŸ”œ Application deadline: 28 February 2026

Read more here: lnkd.in/dHVw-3gR

Photo: Petr Jan Juračka

09.02.2026 12:27 β€” πŸ‘ 1    πŸ” 3    πŸ’¬ 1    πŸ“Œ 1
Job opening for postdoctoral researchers at the Max Planck Institute for Demographic-Epidemiology.

Job opening for postdoctoral researchers at the Max Planck Institute for Demographic-Epidemiology.

The Medical Demography research group explains its goals for studying disease progression and its effects on health and the population.

The Medical Demography research group explains its goals for studying disease progression and its effects on health and the population.

We are looking for a PhD in demography, sociology, epidemiology, or related fields with experience in quantitative health data analysis.

We are looking for a PhD in demography, sociology, epidemiology, or related fields with experience in quantitative health data analysis.

Apply now: The application deadline is March 22, 2026. For more information, visit www.demogr.mpg.de/go/jobs.

Apply now: The application deadline is March 22, 2026. For more information, visit www.demogr.mpg.de/go/jobs.

πŸ“’Job Offer‼️New Max Planck Research Group on Medical Demography
Marcus Ebeling will lead the team starting on 1 July 2026. The research group will be based at the MPIDR in Rostock. Read an interview with Marcus on his future research here: www.demogr.mpg.de/go/rgmd (including link to job) #postdoc


09.02.2026 08:30 β€” πŸ‘ 19    πŸ” 20    πŸ’¬ 0    πŸ“Œ 0

Big congratulations to Rohan Alexander & Tim Hatton for their article β€˜The making of a nation: Who voted for Australian federation?' which has won the 2025 Sir Timothy Coghlan award for best paper in the Asia-Pacific Economic History Review!

06.02.2026 11:21 β€” πŸ‘ 12    πŸ” 3    πŸ’¬ 1    πŸ“Œ 0

β€˜One officer told me that I "had no chance of returning to Minnesota" and that "the best thing for (me] is self-deportation." …
She offered me $2600 to self-deport.
I refused.
I wanted to talk to my attorney.
They didn't tell me the judge had already ordered my release and return to Minnesota.’

05.02.2026 06:04 β€” πŸ‘ 6863    πŸ” 3677    πŸ’¬ 69    πŸ“Œ 176
Giacomo, NicolΓ², Agostino and Francesca celebrating their PhD defense!

Giacomo, NicolΓ², Agostino and Francesca celebrating their PhD defense!

πŸŽ“πŸŽ© Congratulations to NicolΓ², Francesca, Giacomo, and Agostino on earning their PhDs!

It was a wonderful day filled with inspiring talks on fertility, migration, mortality, and health β€” everything that demography is about.

We are truly proud of your paths, well done to all four of you! πŸŒŸπŸ“Š

02.02.2026 16:50 β€” πŸ‘ 20    πŸ” 3    πŸ’¬ 1    πŸ“Œ 1
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NextGenPop Next Generation of Scholars in Population Research

Call for Applications! NextGenPop is an undergraduate program in population research, 2-week on-campus summer experience and virtual components hosted by the University of Minnesota, June 7 – 19, 2026. Deadline Feb. 5

02.02.2026 16:31 β€” πŸ‘ 4    πŸ” 4    πŸ’¬ 0    πŸ“Œ 0

Comparative Population Studies too!

31.01.2026 12:16 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

A ready list I’m not sure, but i know Demographic Research, Vienna Yearbook of Population Research, and Population are all free for authors and readers alike.

30.01.2026 18:28 β€” πŸ‘ 6    πŸ” 0    πŸ’¬ 2    πŸ“Œ 0
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a cartoon character with a sign that says south park behind him ALT: a cartoon character with a sign that says south park behind him

Population science/demography folks: Looking for a list of journals that either a) don't have OA fees, b) have reasonable OA fees (a few hundred), or c) allow authors to deposit the author's accepted manuscript in PubMed.

Does this exist somewhere? Do we need to start such a list?

30.01.2026 18:13 β€” πŸ‘ 11    πŸ” 6    πŸ’¬ 1    πŸ“Œ 0

This is terrible. It is also an opportunity for certain journalists to finally speak up with a *fraction* of the courage the people of Minneapolis have shown. It is also instructive that Lemon is Black. Woe/pox etc upon white journalists who don’t freak out about this.

30.01.2026 13:53 β€” πŸ‘ 3399    πŸ” 792    πŸ’¬ 39    πŸ“Œ 15
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PhD scholarship for research project on lifespan inequalities across social determinants of health The Interdisciplinary Centre on population Dynamics (CPop) at the University of Southern Denmark (SDU) invites applications for a fully funded three year PhD position within a Danish Research Council ...

PhD opportunity!
CPop is opening a fully funded three year PhD position on lifespan inequalities.
Apply here πŸ‘‡
fa-eosd-saasfaprod1.fa.ocs.oraclecloud.com/hcmUI/Candid...

26.01.2026 13:02 β€” πŸ‘ 11    πŸ” 12    πŸ’¬ 0    πŸ“Œ 1
Screenshot of an X.com post by Senator Chris Van Hollen (@ChrisVanHollen) marking β€œ16 years ago today” that SCOTUS decided Citizens United, saying it enabled unchecked secret money in politics and urging reversal, with a photo of Van Hollen speaking in an office with a Maryland flag behind him.

Screenshot of an X.com post by Senator Chris Van Hollen (@ChrisVanHollen) marking β€œ16 years ago today” that SCOTUS decided Citizens United, saying it enabled unchecked secret money in politics and urging reversal, with a photo of Van Hollen speaking in an office with a Maryland flag behind him.

It all comes back to the corrupting influence of money in politics. Get it out!

22.01.2026 19:30 β€” πŸ‘ 1455    πŸ” 283    πŸ’¬ 42    πŸ“Œ 7
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Vignette: solving facility location problems with realistic travel-times.

Use the r5 routing engine to generate a travel-time cost matrix from OSM data, then optimize facility locations with a lightning-fast Rust backend in spopt-r.

Learn how: walker-data.com/spop...

21.01.2026 13:18 β€” πŸ‘ 22    πŸ” 6    πŸ’¬ 3    πŸ“Œ 0
Poster showing speakers for the TPN seminar series

Poster showing speakers for the TPN seminar series

The Toronto Population Network @tpn-uoft.bsky.social Seminar Series is happening this semester, with a great line-up, including @lucampesando.bsky.social, Orsola Torrisi, @mdhayward.bsky.social, and @jnobles.bsky.social! Starts next Tuesday. If you're in Toronto please come along!

21.01.2026 14:43 β€” πŸ‘ 19    πŸ” 11    πŸ’¬ 1    πŸ“Œ 2
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Programs - Michigan Center on the Demography of Aging MiCDA spurs new research on the demography of aging through pilot project and early career development opportunities.

MiCDA is excited to announce that our call for Research Fellow proposals is now open! Early career faculty are invited to submit proposals for pilot research related to the demography of aging. Visit myumi.ch/P34p4 for details. We look forward to your submissions by March 2.

19.01.2026 19:11 β€” πŸ‘ 4    πŸ” 4    πŸ’¬ 0    πŸ“Œ 2
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πŸ“’ #episky #mortality
New year, new #STMF data πŸŽ†

Revised and updated data available πŸ“ˆ
➑️ mortality.org/Data/STMF

πŸ”’ STMF data access is now limited to registered #HMD users to protect sensitive data. Log in with your existing HMD credentials to download the data series.

19.01.2026 12:26 β€” πŸ‘ 11    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0
Announcing the continuation and revitalization of The Demographic and Health Surveys (DHS) Program! Our mission remains steadfast: to deliver high-quality, accessible, actionable data that inform health and development efforts locally and globally.

Announcing the continuation and revitalization of The Demographic and Health Surveys (DHS) Program! Our mission remains steadfast: to deliver high-quality, accessible, actionable data that inform health and development efforts locally and globally.

This is exciting! www.dhsprogram.com?fbclid=IwVER...

17.01.2026 21:00 β€” πŸ‘ 18    πŸ” 6    πŸ’¬ 1    πŸ“Œ 1
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Two more weeks to apply for this job! Tenure track or tenured! Living in Paris! Nice colleagues (and me)!

Let me know if you have any questions! Details: www.shorturl.at/E57le

16.01.2026 10:51 β€” πŸ‘ 7    πŸ” 11    πŸ’¬ 0    πŸ“Œ 1

I belatedly realized that one thing I can do to help Minneapolis is connect people there who want to write about what they're experiencing, but need support, to people who can provide that.

Support can mean comments on a draft, but it can also mean listening to you talk & asking questions,

1/

15.01.2026 15:20 β€” πŸ‘ 112    πŸ” 43    πŸ’¬ 7    πŸ“Œ 2

Finally, a note to the many professors in my networks: One other specific, small thing you can do from outside of Minneapolis is reach out to colleagues who are heavily affected (because of their own or their family's risk, or because they're very busy protecting neighbors) and offer a guest lecture

15.01.2026 15:20 β€” πŸ‘ 180    πŸ” 58    πŸ’¬ 42    πŸ“Œ 30
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Want to get the data out of a PDF figure? As in, the actual data – not a rough trace-along-the-lines version?

I made an app you might like: adamkucharski.github.io/pdf2plot/

It all started a few years ago... 🧡

13.01.2026 21:12 β€” πŸ‘ 479    πŸ” 183    πŸ’¬ 18    πŸ“Œ 22
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Ageing populations: new challenges in longevity - PubMed The deceleration in life expectancy gains, particularly among the oldest populations, raises important questions about future trends in longevity. As physical and cognitive health change in older ages healthcare systems will face new and diverse challenges. Understanding the role of ageing and time- …

Our paper "Ageing populations: new challenges in longevity" updating Christensen et al. (2009) is out! This was one of the first tasks Jim Vaupel gave me 5 years ago & grateful to have worked with 3 of the original authors plus 2 CPop colleagues to bring this to fruition @cosmostrozza.bsky.social

12.01.2026 14:17 β€” πŸ‘ 6    πŸ” 1    πŸ’¬ 0    πŸ“Œ 1
APPLY NOW:
Postdoctoral Fellowship Available
Population Health Training Program

JOIN OUR INNOVATIVE PROGRAM!

Fellows in this Population Health Science Training Program work closely with academic mentors in social and health science fields to build skills in interdisciplinary population health research to prepare them for academic careers focused on addressing pressing public health problems. We seek
exceptional candidates in either social science or health science fields who have earned a PhD to join our diverse and accomplished cohort of trainees, and we particularly welcome candidates from backgrounds underrepresented in research.

APPLY NOW: Postdoctoral Fellowship Available Population Health Training Program JOIN OUR INNOVATIVE PROGRAM! Fellows in this Population Health Science Training Program work closely with academic mentors in social and health science fields to build skills in interdisciplinary population health research to prepare them for academic careers focused on addressing pressing public health problems. We seek exceptional candidates in either social science or health science fields who have earned a PhD to join our diverse and accomplished cohort of trainees, and we particularly welcome candidates from backgrounds underrepresented in research.

The Minnesota Population Center at the University of Minnesota (@minnpop.bsky.social) is hiring a postdoc in Population Health. Happy to chat about the MPC, UMN, and the Twin Cities, which are all awesome in my humble opinion!

pop.umn.edu/training/pos...

12.01.2026 14:54 β€” πŸ‘ 22    πŸ” 22    πŸ’¬ 0    πŸ“Œ 0
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Corporation For Public Broadcasting Is Dissolved After 58 Years Of Service

The Corporation for Public Broadcasting has been dissolved, ending its 58 years as the primary funder for PBS, NPR and local TV and radio stations

05.01.2026 20:00 β€” πŸ‘ 6220    πŸ” 3774    πŸ’¬ 704    πŸ“Œ 1326