Olle Hammar's Avatar

Olle Hammar

@ollehammar.bsky.social

Assistant Professor in Economics @linnaeus-econ.bsky.social. Researcher @futures-studies.bsky.social. Affiliate @iza.org @rfberlin.bsky.social. PhD from Uppsala University. Inequality, migration, culture, replication. http://www.ollehammar.com

1,925 Followers  |  976 Following  |  102 Posts  |  Joined: 30.09.2023  |  1.7266

Latest posts by ollehammar.bsky.social on Bluesky

Thanks to the external referees and editors @readdemography.bsky.social! πŸ™

05.12.2025 21:43 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Editorial Note Regarding Begum et al. (2018), Hammar et al. (2025), and Begum et al. (2025) | Demography | Duke University Press

You can also read the response doi.org/10.1215/0070..., the editorial note doi.org/10.1215/0070... and the original article doi.org/10.1007/s135... - and make up your own mind about our concerns 🧠

05.12.2025 21:43 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
A Commentary on β€œGender Bias in Parental Attitude: An Experimental Approach” by Begum, Grossman, and Islam (2018) | Demography | Duke University Press

🚨 Our comment on Begum, Grossman & Islam (2018) is now out in Demography @readdemography.bsky.social (w/ @carlbonander.bsky.social, Bensch, @nikljako.bsky.social & Brodeur @i4replication.bsky.social): doi.org/10.1215/0070...

05.12.2025 21:43 β€” πŸ‘ 3    πŸ” 2    πŸ’¬ 1    πŸ“Œ 0

Happy to announce a 4th edition of the Workshop in Economic History in Uppsala, with the great @essobecker.bsky.social as keynote! Workshop takes places on May 28-29, 2026, in Uppsala. Apply by January 31, 2026.

Here is the Cfp: www.dropbox.com/scl/fi/6xdmp...

01.12.2025 10:31 β€” πŸ‘ 11    πŸ” 6    πŸ’¬ 0    πŸ“Œ 3
Post image

Rapporten inkluderar Γ€ven en kommentar frΓ₯n undertecknad ✍️

01.12.2025 12:10 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Preview
Γ„ger pojkar och flickor lika mycket? (2025) β€” Power shift – through ownership

LΓ€s Ownershifts senaste rapport om barns sparande "Γ„ger pojkar och flickor lika mycket?": www.ownershift.se/reports/ager... πŸ‘‡

01.12.2025 12:10 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Post image

Finally, we also have a new Affiliated Professor: @s-stantcheva.bsky.social! Stefanie is Professor of Economics @harvard.edu, Founder & Director @socialeconomicslab.bsky.social, the 2025 John Bates Clark Medalist, and Editor @qjeharvard.bsky.social. We’re very honored to have Stefanie joining us! 🀩

26.11.2025 21:58 β€” πŸ‘ 4    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Post image

Second, we have a new Visiting Professor: JΓ©rΓ΄me Adda! JΓ©rΓ΄me is Professor of Economics at Bocconi, Research Director @rfberlin.bsky.social, and Programme Director @cepr.org. He has also been Editor @reveconstudies.bsky.social. We’re extremely proud to have JΓ©rΓ΄me joining us and his SmΓ₯land roots! πŸ‡ΈπŸ‡ͺ

26.11.2025 21:58 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0

Proud to be an @i4replication.bsky.social Fellow! πŸ’«

25.11.2025 19:33 β€” πŸ‘ 6    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Post image

Together w/ @odissei.bsky.social, I4R is organizing CBS Replication Games, re-analyzing 6 papers w/ Dutch administrative microdata! Teams get 1 month of microdata access in Feb 2026, meeting in Utrecht for a three-day hackathon. Interested? Register by Nov 30! tinyurl.com/yx3e7b3a

25.11.2025 13:07 β€” πŸ‘ 5    πŸ” 4    πŸ’¬ 0    πŸ“Œ 0

⛷️ Strong recommend on this Winter School πŸ‘‡

21.11.2025 19:27 β€” πŸ‘ 6    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Post image

Superb research and engagement at ASWEDE's 10th conference. Thanks to everyone who made this event memorable! #ASWEDE2025

19.11.2025 13:10 β€” πŸ‘ 3    πŸ” 2    πŸ’¬ 0    πŸ“Œ 1

ASWEDE's 10th Annual Conference kicks off tomorrow at NÀÀs Fabriker! We look forward to sharp presentations and discussions on development economics from PhD students and senior researchers. Program: bit.ly/3K1sRUJ

16.11.2025 11:54 β€” πŸ‘ 3    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
Post image

CfPπŸ—£οΈ: 7th edition of the Workshop on the Economics and Politics of Migration. 28-29 May 2026, in Rome!

Organised by CEPR/King's College/EBRD/Sapienza

Keynotes are Paolo Pinotti (Bocconi) and Vicky Fouka (Stanford).

Submit your papers: docs.google.com/forms/d/e/1F...

Deadline 23 Jan.

πŸ€“πŸ”₯πŸ•πŸπŸ·

12.11.2025 09:20 β€” πŸ‘ 24    πŸ” 18    πŸ’¬ 0    πŸ“Œ 1
Post image

En tanke pΓ₯ fars dag till min morfar Lennart Berggren som hade varit 98 Γ₯r idag och som 25-Γ₯rig filosofistudent i Lund var den sommarvikarierande visselblΓ₯saren som avslΓΆjade Vipeholmsexperimenten: sverigesradio.se/play/avsnitt...

09.11.2025 19:58 β€” πŸ‘ 15    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
Olle Hammar ROCKWOOL Foundation

πŸŽ‰ Honored to join @rfberlin.bsky.social as a Research Affiliate!

07.11.2025 12:43 β€” πŸ‘ 5    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Preview
World Inequality Conference 2026 - World Inequality Lab The World Inequality Lab is organizing the third edition of the World Inequality Conference, to be held at the Paris School of Economics on June 4-5, 2026.

There's less than 1️⃣ month to go until the deadline for submissions to our #CallForPapers for the 2026 World Inequality Conference.

πŸƒβ€β™€οΈHurry up and submit your paper by 1 December!

inequalitylab.world/en/event/wor...

05.11.2025 15:50 β€” πŸ‘ 14    πŸ” 9    πŸ’¬ 1    πŸ“Œ 0

Den Γ₯rliga rapporteringen πŸ‘‡

03.11.2025 17:59 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
Job Market kandidater 2025/2026 - Uppsala universitet

Here are our 5 Job-market candidates this year: a strong cohort of excellent researchers, from macro to health and labor/AI. Have a look:

www.uu.se/institution/...

30.10.2025 11:20 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Post image

πŸ“’ CfP Alert!

We’re excited to announce the 3rd Bristol Applied Economics Meetings (BΓ†M).
πŸ—“οΈ 5–8 May 2026 | πŸ“ University of Bristol

Three focused workshops in applied economics: Development, Migration & Fairness.

πŸ”— www.baem.info

31.10.2025 13:43 β€” πŸ‘ 10    πŸ” 4    πŸ’¬ 1    πŸ“Œ 0

Mailo, ergo sum.

29.10.2025 10:16 β€” πŸ‘ 5    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Post image

A widely held view is that the Gini coefficient is not decomposable by subgroups. This paper proposes an axiomatic framework that ensures well-behaved within and between-group terms under which the Gini is decomposable with a novel and unique formula. buff.ly/XdnzG6F

24.10.2025 13:05 β€” πŸ‘ 32    πŸ” 14    πŸ’¬ 0    πŸ“Œ 2
Post image

πŸŽ–οΈ The Prize in Economic Sciences is awarded to Joel Mokyr, Philippe Aghion and Peter Howitt!

Over the last two centuries the world has seen sustained economic growth. This year’s laureates explain how innovation provides the impetus for further progress.

#PrizeinEconomicSciences #NobelPrize

13.10.2025 09:47 β€” πŸ‘ 49    πŸ” 31    πŸ’¬ 2    πŸ“Œ 8
Post image

🚨 Our comment on Begum, Grossman & Islam (2018) in @readdemography.bsky.social is now available as an @i4replication.bsky.social working paper (w/ @carlbonander.bsky.social, @nikljako.bsky.social, Bensch & Brodeur). Read it here πŸ‘‰ www.econstor.eu/bitstream/10...

10.10.2025 13:31 β€” πŸ‘ 6    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0

Awesome conference @isi-munich.bsky.social! 🀩 I had a great time presenting in the wealth measurement session this morning! #ISIWealthConference2025

09.10.2025 14:04 β€” πŸ‘ 10    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
Post image

Working on topics of Inequality and the #environment ? Join @sitestockholm.bsky.social
workshop on Nov 28! Deadline October 15.

02.10.2025 07:44 β€” πŸ‘ 13    πŸ” 9    πŸ’¬ 0    πŸ“Œ 0

🚨I4R is looking to hire postdoc fellows in public health and computer science!

The postdoc will join a team of researchers and help mass reproduce studies in leading public health journals or develop AI replicator agents.

Info πŸ‘‡

30.09.2025 18:18 β€” πŸ‘ 17    πŸ” 18    πŸ’¬ 1    πŸ“Œ 2
Post image Post image

πŸ‘‹ New colleagues announcement! We're very happy to have two new PhD students joining our department! A warm welcome to Fanni Forslind @fanniforslind.bsky.social and Marielle Appelkvist @marielleappelkvist.bsky.social! 🀩

19.09.2025 12:34 β€” πŸ‘ 5    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
Post image

Join us for ASWEDE's 10th annual conference in Development Economics! November 17-18 at NÀÀs Fabriker, outside Gothenburg. Submission deadline in one week: September 26. Open to PhD students and senior researchers. Details below. #ASWEDEConference #DevelopmentEconomics

19.09.2025 06:58 β€” πŸ‘ 4    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0
Post image Post image

πŸ“† Save the date: the 3rd edition of the World Inequality Conference will take place on 4–5 June 2026 at Paris School of Economics @pse.bsky.social

The call for papers is open until December 1.

πŸ”— More details & submission: inequalitylab.world/en/event/wor...

17.09.2025 14:59 β€” πŸ‘ 42    πŸ” 17    πŸ’¬ 0    πŸ“Œ 1

@ollehammar is following 20 prominent accounts