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
🚨 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
⛷️ Strong recommend on this Winter School 👇
📢 Call for Papers 📢
💡 19th Winter School on #Inequality & #SocialWelfare Theory (IT19) Jan. 6-10, 2026 in Alba di Canazei.
🤝 Organized by @cesifo.org, the University of Verona & @liser.lu
⏳ Application deadline: Nov. 27
🔗 Click to discover the confirmed speakers + more: liser.lu/events/canaz...
💡 19th Winter School on #Inequality & #SocialWelfare Theory (IT19) Jan. 6-10, 2026 in Alba di Canazei.
🤝 Organized by @cesifo.org, the University of Verona & @liser.lu
⏳ Application deadline: Nov. 27
🔗 Click to discover the confirmed speakers + more: liser.lu/events/canaz...
November 21, 2025 at 7:27 PM
⛷️ Strong recommend on this Winter School 👇
Reposted by Olle Hammar
Superb research and engagement at ASWEDE's 10th conference. Thanks to everyone who made this event memorable! #ASWEDE2025
November 19, 2025 at 1:10 PM
Superb research and engagement at ASWEDE's 10th conference. Thanks to everyone who made this event memorable! #ASWEDE2025
Reposted by Olle Hammar
ASWEDE's 10th Annual Conference kicks off tomorrow at Nääs Fabriker! We look forward to sharp presentations and discussions on development economics from PhD students and senior researchers. Program: bit.ly/3K1sRUJ
bit.ly
November 16, 2025 at 11:54 AM
ASWEDE's 10th Annual Conference kicks off tomorrow at Nääs Fabriker! We look forward to sharp presentations and discussions on development economics from PhD students and senior researchers. Program: bit.ly/3K1sRUJ
Reposted by Olle Hammar
CfP🗣️: 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.
🤓🔥🍕🍝🍷
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.
🤓🔥🍕🍝🍷
November 12, 2025 at 9:20 AM
CfP🗣️: 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.
🤓🔥🍕🍝🍷
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.
🤓🔥🍕🍝🍷
En tanke på fars dag till min morfar Lennart Berggren som hade varit 98 år idag och som 25-årig filosofistudent i Lund var den sommarvikarierande visselblåsaren som avslöjade Vipeholmsexperimenten: sverigesradio.se/play/avsnitt...
November 9, 2025 at 7:58 PM
En tanke på fars dag till min morfar Lennart Berggren som hade varit 98 år idag och som 25-årig filosofistudent i Lund var den sommarvikarierande visselblåsaren som avslöjade Vipeholmsexperimenten: sverigesradio.se/play/avsnitt...
🎉 Honored to join @rfberlin.bsky.social as a Research Affiliate!
Olle Hammar
ROCKWOOL Foundation
www.rfberlin.com
November 7, 2025 at 12:43 PM
🎉 Honored to join @rfberlin.bsky.social as a Research Affiliate!
Reposted by Olle Hammar
There's less than 1️⃣ month to go until the deadline for submissions to our #CallForPapers for the 2026 World Inequality Conference.
🏃♀️Hurry up and submit your paper by 1 December!
inequalitylab.world/en/event/wor...
🏃♀️Hurry up and submit your paper by 1 December!
inequalitylab.world/en/event/wor...
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.
inequalitylab.world
November 5, 2025 at 3:50 PM
There's less than 1️⃣ month to go until the deadline for submissions to our #CallForPapers for the 2026 World Inequality Conference.
🏃♀️Hurry up and submit your paper by 1 December!
inequalitylab.world/en/event/wor...
🏃♀️Hurry up and submit your paper by 1 December!
inequalitylab.world/en/event/wor...
Den årliga rapporteringen 👇
November 3, 2025 at 5:59 PM
Den årliga rapporteringen 👇
Reposted by Olle Hammar
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/...
www.uu.se/institution/...
Job Market kandidater 2025/2026
- Uppsala universitet
www.uu.se
October 30, 2025 at 11:20 AM
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/...
www.uu.se/institution/...
Reposted by Olle Hammar
📢 CfP Alert!
We’re excited to announce the 3rd Bristol Applied Economics Meetings (BÆM).
🗓️ 5–8 May 2026 | 📍 University of Bristol
Three focused workshops in applied economics: Development, Migration & Fairness.
🔗 www.baem.info
We’re excited to announce the 3rd Bristol Applied Economics Meetings (BÆM).
🗓️ 5–8 May 2026 | 📍 University of Bristol
Three focused workshops in applied economics: Development, Migration & Fairness.
🔗 www.baem.info
October 31, 2025 at 1:43 PM
📢 CfP Alert!
We’re excited to announce the 3rd Bristol Applied Economics Meetings (BÆM).
🗓️ 5–8 May 2026 | 📍 University of Bristol
Three focused workshops in applied economics: Development, Migration & Fairness.
🔗 www.baem.info
We’re excited to announce the 3rd Bristol Applied Economics Meetings (BÆM).
🗓️ 5–8 May 2026 | 📍 University of Bristol
Three focused workshops in applied economics: Development, Migration & Fairness.
🔗 www.baem.info
Reposted by Olle Hammar
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
October 24, 2025 at 1:05 PM
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
Reposted by Olle Hammar
🎖️ 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
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
October 13, 2025 at 9:47 AM
🎖️ 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
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