Tim Riffe
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timriffe1.bsky.social
Tim Riffe
@timriffe1.bsky.social
danger, demography, and data
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New paper on how to calculate a multistate death distribution! What's that, you ask? Usually, we plot a death distribution by age at death. But age at death is the sum of our time spent in different states. If we split time between being healthy or not, then the distribution is multistate (1/3)
Reposted by Tim Riffe
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.

🔜 Application deadline: 28 February 2026

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

Photo: Petr Jan Juračka
February 9, 2026 at 12:27 PM
Reposted by Tim Riffe
📢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

February 9, 2026 at 8:30 AM
Reposted by Tim Riffe
Big congratulations to Rohan Alexander & Tim Hatton for their article ‘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!
February 6, 2026 at 11:21 AM
Reposted by Tim Riffe
‘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.’
February 5, 2026 at 6:04 AM
Reposted by Tim Riffe
🎓🎩 Congratulations to Nicolò, Francesca, Giacomo, and Agostino on earning their PhDs!

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

We are truly proud of your paths, well done to all four of you! 🌟📊
February 2, 2026 at 4:51 PM
Reposted by Tim Riffe
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
NextGenPop
Next Generation of Scholars in Population Research
buff.ly
February 2, 2026 at 4:31 PM
Comparative Population Studies too!
January 31, 2026 at 12:16 PM
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.
January 30, 2026 at 6:28 PM
Reposted by Tim Riffe
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?
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
media.tenor.com
January 30, 2026 at 6:13 PM
Reposted by Tim Riffe
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.
Don was taken into custody by federal agents last night in Los Angeles.
January 30, 2026 at 1:53 PM
Reposted by Tim Riffe
Reposted by Tim Riffe
It all comes back to the corrupting influence of money in politics. Get it out!
January 22, 2026 at 7:30 PM
Reposted by Tim Riffe
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...
January 21, 2026 at 1:18 PM
Reposted by Tim Riffe
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!
January 21, 2026 at 2:43 PM
Reposted by Tim Riffe
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.
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.
myumi.ch
January 19, 2026 at 7:11 PM
Reposted by Tim Riffe
📢 #episky #mortality
New year, new #STMF data 🎆

Revised and updated data available 📈
➡️ mortality.org/Data/STMF

🔒 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.
January 19, 2026 at 12:26 PM
Reposted by Tim Riffe
January 17, 2026 at 9:00 PM
Reposted by Tim Riffe
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
January 16, 2026 at 10:51 AM
Reposted by Tim Riffe
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/
January 15, 2026 at 3:20 PM
Reposted by Tim Riffe
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
January 15, 2026 at 3:20 PM
Reposted by Tim Riffe
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... 🧵
January 13, 2026 at 9:12 PM
Reposted by Tim Riffe
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
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- …
pubmed.ncbi.nlm.nih.gov
January 12, 2026 at 2:17 PM
Reposted by Tim Riffe
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...
January 12, 2026 at 2:54 PM
Reposted by Tim Riffe
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
Corporation For Public Broadcasting Is Dissolved After 58 Years Of Service
www.huffpost.com
January 5, 2026 at 8:00 PM
Reposted by Tim Riffe
🚨🧵on Venezuela

While the final US military operation last weekend might have been under cover of darkness, the build-up to it was out in the open for all to see.

I've constructed some timelines of the immediate build-up covering both the strikes and the supporting actions...

1/11
January 5, 2026 at 4:38 PM