Olle Hammar
@ollehammar.bsky.social
Assistant Professor in Economics @linnaeus-econ.bsky.social. Researcher @sthlmschoolofecon.bsky.social. PhD from @uu.se. Inequality, migration, replication. http://www.ollehammar.com/
Reposted by Olle Hammar
📺✨ Earlier this week @ollehammar.bsky.social was interviewed in TV4 Nyheterna 👇
Ny rapport: Skilda normer delar Sverige
Vilka beteenden som är socialt accepterade skiljer sig mellan utsatta områden och övriga Sverige. Det kan handla om exempelvis att visa sin religiösa ...
www.tv4play.se
February 13, 2026 at 5:34 PM
📺✨ Earlier this week @ollehammar.bsky.social was interviewed in TV4 Nyheterna 👇
Reposted by Olle Hammar
New Discussion Paper from RFBerlin! Mikael Elinder, Oscar Erixson, and @ollehammar.bsky.social examine how the invasion of Ukraine affected sentiments in Russia. How do major geopolitical events shape public attitudes?
🔗 www.rfberlin.com/wp-content/u...
🔗 www.rfberlin.com/wp-content/u...
February 13, 2026 at 4:57 PM
New Discussion Paper from RFBerlin! Mikael Elinder, Oscar Erixson, and @ollehammar.bsky.social examine how the invasion of Ukraine affected sentiments in Russia. How do major geopolitical events shape public attitudes?
🔗 www.rfberlin.com/wp-content/u...
🔗 www.rfberlin.com/wp-content/u...
Imorse gästade jag TV4 Nyhetsmorgon för att prata integration och värderingar: www.youtube.com/watch?v=uH_5...
February 11, 2026 at 10:45 PM
Imorse gästade jag TV4 Nyhetsmorgon för att prata integration och värderingar: www.youtube.com/watch?v=uH_5...
Reposted by Olle Hammar
"Putin’s support increased despite the war" — @futures-studies.bsky.social reports about a study by @ollehammar.bsky.social and co-authors 👇
Förhoppningar om framtiden inkluderar gärna fred i Ukraina. Bortsett från återkommande möten mellan toppledare närs en förhoppning i väst om att det inhemska stödet för styret i Kreml ska… | Institute...
Förhoppningar om framtiden inkluderar gärna fred i Ukraina. Bortsett från återkommande möten mellan toppledare närs en förhoppning i väst om att det inhemska stödet för styret i Kreml ska undermineras...
www.linkedin.com
February 5, 2026 at 5:58 PM
"Putin’s support increased despite the war" — @futures-studies.bsky.social reports about a study by @ollehammar.bsky.social and co-authors 👇
Reposted by Olle Hammar
"Det blir som en ny slags klasskillnad, mellan bostadsägare och de som hyr sina bostäder", säger @ollehammar.bsky.social, nationalekonom som forskar på förmögenhet och ojämlikhet i Sverige.
I årtionden har bostadspriserna gått upp.
Det skapar stora ekonomiska klyftor mellan olika grupper av unga: De som har föräldrar med bostadsförmögenhet som kan hjälpa till att köpa en bostad, och de som inte har det
Det skapar stora ekonomiska klyftor mellan olika grupper av unga: De som har föräldrar med bostadsförmögenhet som kan hjälpa till att köpa en bostad, och de som inte har det
Mammas och pappas pengar avgör om du kan köpa bostad eller inte
Bostaden driver på klasskillnader mellan unga.
www.sydsvenskan.se
February 2, 2026 at 8:46 PM
"Det blir som en ny slags klasskillnad, mellan bostadsägare och de som hyr sina bostäder", säger @ollehammar.bsky.social, nationalekonom som forskar på förmögenhet och ojämlikhet i Sverige.
Reposted by Olle Hammar
👏 Huge congratulations to @s-stantcheva.bsky.social (who recently also became affiliated with our new Linnaeus University Centre for Equality of Opportunity and Big Data Policy Analysis)! 🤩
Congratulations to Stefanie Stantcheva (@s-stantcheva.bsky.social) who was presented with the 2025 Clark Medal by Katharine Abraham at the #ASSA2026 Annual Meeting. #econsky aeaweb.org/about-aea/ho...
January 20, 2026 at 4:16 PM
👏 Huge congratulations to @s-stantcheva.bsky.social (who recently also became affiliated with our new Linnaeus University Centre for Equality of Opportunity and Big Data Policy Analysis)! 🤩
Reposted by Olle Hammar
🚨 Call for Papers 🚨 We are pleased to invite submissions to Linnaeus Inequality Summit, a new annual research conference organized by Linnaeus University Centre of Excellence Equality of Opportunity and Big Data Policy Analysis. The conference will take place on June 2-3, 2026, in Växjö, Sweden.
January 16, 2026 at 1:12 PM
🚨 Call for Papers 🚨 We are pleased to invite submissions to Linnaeus Inequality Summit, a new annual research conference organized by Linnaeus University Centre of Excellence Equality of Opportunity and Big Data Policy Analysis. The conference will take place on June 2-3, 2026, in Växjö, Sweden.
Reposted by Olle Hammar
It is a common hope that Russia's war in Ukraine will erode domestic support for the Kremlin. However, survey data show that the invasion of Ukraine produced a sharp and enduring surge in pro-Kremlin sentiment in Russia.
M Elinder, O Erixson, @ollehammar.bsky.social
cepr.org/voxeu/column...
#EconSky
M Elinder, O Erixson, @ollehammar.bsky.social
cepr.org/voxeu/column...
#EconSky
January 12, 2026 at 10:08 AM
It is a common hope that Russia's war in Ukraine will erode domestic support for the Kremlin. However, survey data show that the invasion of Ukraine produced a sharp and enduring surge in pro-Kremlin sentiment in Russia.
M Elinder, O Erixson, @ollehammar.bsky.social
cepr.org/voxeu/column...
#EconSky
M Elinder, O Erixson, @ollehammar.bsky.social
cepr.org/voxeu/column...
#EconSky
Read our commentary on ”Gender Bias in Parental Attitude”, now out in print! 👇 @i4replication.bsky.social
In the Dec issue: commentaries, 3 notes, 15 articles & an acknowledgment of reviewers. Includes research on deportation & Latino segregation, dementia burden in China, racial disparities in obesity, union formation & religious boundaries, LARCs & FP goals & more. read.dukeupress.edu/demography/i...
Volume 62 Issue 6 | Demography | Duke University Press
read.dukeupress.edu
January 9, 2026 at 7:40 PM
Read our commentary on ”Gender Bias in Parental Attitude”, now out in print! 👇 @i4replication.bsky.social
Join us for NCDE 2026 in Växjö! Submissions now open! 👇
🚨 Call for Papers 🚨 We'll be hosting the 24th Nordic Conference in Development Economics (NCDE) in Växjö, Sweden, on June 16-17, 2026. Keynote speakers: @hjortj.bsky.social & Rohini Somanathan 🤩 Submit your papers here (deadline February 28): axacoair.se/go?py3X14W0
January 9, 2026 at 5:10 PM
Join us for NCDE 2026 in Växjö! Submissions now open! 👇
👋 Join the launch of the new Center for Migration and Integration Research at @sthlmschoolofecon.bsky.social on January 29! With me, @linlerpold.bsky.social, @lisapelling.bsky.social, and many more! forms.office.com/pages/respon...
January 8, 2026 at 9:09 PM
👋 Join the launch of the new Center for Migration and Integration Research at @sthlmschoolofecon.bsky.social on January 29! With me, @linlerpold.bsky.social, @lisapelling.bsky.social, and many more! forms.office.com/pages/respon...
🎉 New year, new gig! 🎉 I'm very excited to (part-time) join the brand new Center for Migration and Integration Research at @sthlmschoolofecon.bsky.social! 🥳 www.hhs.se/en/research/...
Center for Migration and Integration Research: A multistakeholder Arena - hhs.se - Stockholm School of Economics
The Center for Migration and Integration Research conducts and disseminates cross-disciplinary social science research on how migration regimes and regulations, business models and working conditions, and social and professional networks interact to shape integration and social sustainability. Sustainable integration is supported by understanding the interplay between rights and responsibilities, labor conditions, and social inclusion.
www.hhs.se
January 5, 2026 at 12:17 PM
🎉 New year, new gig! 🎉 I'm very excited to (part-time) join the brand new Center for Migration and Integration Research at @sthlmschoolofecon.bsky.social! 🥳 www.hhs.se/en/research/...
🚨 We have a new VoxEU column @voxeu.org on 🇷🇺🇺🇦 ”How foreign wars can consolidate authoritarian power: Evidence from Russia’s invasion of Ukraine”: cepr.org/voxeu/column... (w/ @mikaelelinder.bsky.social & Oscar Erixson)
December 29, 2025 at 12:13 PM
🚨 We have a new VoxEU column @voxeu.org on 🇷🇺🇺🇦 ”How foreign wars can consolidate authoritarian power: Evidence from Russia’s invasion of Ukraine”: cepr.org/voxeu/column... (w/ @mikaelelinder.bsky.social & Oscar Erixson)
Reposted by Olle Hammar
📢🚨 PhD position in my new "@welgain.bsky.social" project 🚨 📢
I am looking for a 🎓 PhD student 🎓 interested in impact evaluation, welfare programs, labor & public economics, social policy & inequality, to work with me at NTNU in Trondheim (www.ntnu.edu). (1/3) 👇
I am looking for a 🎓 PhD student 🎓 interested in impact evaluation, welfare programs, labor & public economics, social policy & inequality, to work with me at NTNU in Trondheim (www.ntnu.edu). (1/3) 👇
Norwegian University of Science and Technology - NTNU
Norwegian University of Science and Technology. Located in Trondheim, Gjøvik and Ålesund. Specializing in technology and the natural sciences. 40 000 students.
www.ntnu.edu
December 23, 2025 at 6:37 PM
📢🚨 PhD position in my new "@welgain.bsky.social" project 🚨 📢
I am looking for a 🎓 PhD student 🎓 interested in impact evaluation, welfare programs, labor & public economics, social policy & inequality, to work with me at NTNU in Trondheim (www.ntnu.edu). (1/3) 👇
I am looking for a 🎓 PhD student 🎓 interested in impact evaluation, welfare programs, labor & public economics, social policy & inequality, to work with me at NTNU in Trondheim (www.ntnu.edu). (1/3) 👇
Reposted by Olle Hammar
The #IIPF2026 Call for Papers is out!
👉 www.iipf.org/papers/Call%...
Submit your public finance paper by Feb. 15, 2026.
Further information on the congress at www.iseg.ulisboa.pt/en/event/iipf/
Organizers at ISEG 👇 and Scientific Chairs Naomi Feldman and @dforemny.bsky.social
#EconConf #EconSky
👉 www.iipf.org/papers/Call%...
Submit your public finance paper by Feb. 15, 2026.
Further information on the congress at www.iseg.ulisboa.pt/en/event/iipf/
Organizers at ISEG 👇 and Scientific Chairs Naomi Feldman and @dforemny.bsky.social
#EconConf #EconSky
iipf.org/cng.htm
The 82nd Annual Congress of the International Institute of Public Finance (@iipf.bsky.social) will be held at ISEG Lisbon, Portugal, from August 24-26, 2026. Local organization: António Afonso, José Alves and João Pereira dos Santos (all ISEG Lisbon).
The 82nd Annual Congress of the International Institute of Public Finance (@iipf.bsky.social) will be held at ISEG Lisbon, Portugal, from August 24-26, 2026. Local organization: António Afonso, José Alves and João Pereira dos Santos (all ISEG Lisbon).
December 17, 2025 at 10:22 AM
The #IIPF2026 Call for Papers is out!
👉 www.iipf.org/papers/Call%...
Submit your public finance paper by Feb. 15, 2026.
Further information on the congress at www.iseg.ulisboa.pt/en/event/iipf/
Organizers at ISEG 👇 and Scientific Chairs Naomi Feldman and @dforemny.bsky.social
#EconConf #EconSky
👉 www.iipf.org/papers/Call%...
Submit your public finance paper by Feb. 15, 2026.
Further information on the congress at www.iseg.ulisboa.pt/en/event/iipf/
Organizers at ISEG 👇 and Scientific Chairs Naomi Feldman and @dforemny.bsky.social
#EconConf #EconSky
🎉 Good news! We have received funding from Handelsbanken's research foundations for organizing the Nordic Conference in Development Economics (NCDE) 2026 at @linnaeus-econ.bsky.social in Växjö! 🙏 Save the dates: June 15-17. More info soon! w/ @erikprawitz.bsky.social & @jakobenlund.bsky.social
December 16, 2025 at 10:27 AM
🎉 Good news! We have received funding from Handelsbanken's research foundations for organizing the Nordic Conference in Development Economics (NCDE) 2026 at @linnaeus-econ.bsky.social in Växjö! 🙏 Save the dates: June 15-17. More info soon! w/ @erikprawitz.bsky.social & @jakobenlund.bsky.social
Reposted by Olle Hammar
🚨New blog post: Replicators, rejoice! Episode 1 of the new series is out: “A New README.” A practical guide to transforming messy project folders into clear, well-structured documentation that strengthens transparency and reproducibility.
See more at
i4replication.org/dont-panic-a...
See more at
i4replication.org/dont-panic-a...
Don’t Panic: A Researcher’s Guide to Replication Packages
Episode 1: A New README Who Needs a README? Imagine coming across a really cool paper in a top journal. The kind of paper you wish you wrote yourself; the…
i4replication.org
December 8, 2025 at 8:14 PM
🚨New blog post: Replicators, rejoice! Episode 1 of the new series is out: “A New README.” A practical guide to transforming messy project folders into clear, well-structured documentation that strengthens transparency and reproducibility.
See more at
i4replication.org/dont-panic-a...
See more at
i4replication.org/dont-panic-a...
Reposted by Olle Hammar
This Editorial Note (@sararcurran.bsky.social & @fertmortmig.bsky.social), Commentary (@ollehammar.bsky.social et al) & Response (Begum et al) address journal editorial processes & focus on issues raised regarding the 2018 piece “Gender Bias in Parental Attitude.” read.dukeupress.edu/demography/a...
December 8, 2025 at 6:09 PM
This Editorial Note (@sararcurran.bsky.social & @fertmortmig.bsky.social), Commentary (@ollehammar.bsky.social et al) & Response (Begum et al) address journal editorial processes & focus on issues raised regarding the 2018 piece “Gender Bias in Parental Attitude.” read.dukeupress.edu/demography/a...
🚨 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...
A Commentary on “Gender Bias in Parental Attitude: An Experimental Approach” by Begum, Grossman, and Islam (2018) | Demography | Duke University Press
doi.org
December 5, 2025 at 9:43 PM
🚨 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...
Reposted by Olle Hammar
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...
Here is the Cfp: www.dropbox.com/scl/fi/6xdmp...
www.dropbox.com
December 1, 2025 at 10:31 AM
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...
Here is the Cfp: www.dropbox.com/scl/fi/6xdmp...
Läs Ownershifts senaste rapport om barns sparande "Äger pojkar och flickor lika mycket?": www.ownershift.se/reports/ager... 👇
Äger pojkar och flickor lika mycket? (2025) — Power shift – through ownership
www.ownershift.se
December 1, 2025 at 12:10 PM
Läs Ownershifts senaste rapport om barns sparande "Äger pojkar och flickor lika mycket?": www.ownershift.se/reports/ager... 👇
Reposted by Olle Hammar
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! 🤩
November 26, 2025 at 9:58 PM
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! 🤩
Reposted by Olle Hammar
Second, we have a new Visiting Professor: Jérôme Adda! Jérôme 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 Jérôme joining us and his Småland roots! 🇸🇪
November 26, 2025 at 9:58 PM
Second, we have a new Visiting Professor: Jérôme Adda! Jérôme 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 Jérôme joining us and his Småland roots! 🇸🇪
Proud to be an @i4replication.bsky.social Fellow! 💫
📢 We’re thrilled to announce the launch of our new “Research Fellows” program! 🎉
If you’ve contributed to a Replication Game, published in our Discussion Papers series, or helped organize one of our events — you’re invited to join the roster of I4R Research Fellows.
If you’ve contributed to a Replication Game, published in our Discussion Papers series, or helped organize one of our events — you’re invited to join the roster of I4R Research Fellows.
November 25, 2025 at 7:33 PM
Proud to be an @i4replication.bsky.social Fellow! 💫
Reposted by Olle Hammar
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
November 25, 2025 at 1:07 PM
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