Olle Hammar
@ollehammar
Assistant Professor in Economics @linneuni. Researcher @Framtidsstudier. Affiliate @iza_bonn. PhD @EconomicsUU. Research on inequality, culture and migration.
🥳PUBLICATION ALERT🥳 Very happy to have our paper on "Global Earnings Inequality, 1970-2018" published in The Economic Journal @EJ_RES with @daniwaldenstrom Has the world become more or less equal over the past 50 years? A small thread on a big question 👇 [1/10]
#GDRI_rep Update 7: Retraction! Our comment of "Parent–teacher meetings and student outcomes: Evidence from a developing country" has led to the paper being retracted. Our comment is accepted as is. Short 🧵
Un paper donde todos los autores retractaron sus nombres?
#GDRI_rep Update 2: I4R sent a report to the original authors for the PLOS One article "“Food insecurity and mental health of women during COVID-19: Evidence from a developing country". All authors have now emailed PLOS One to withdraw their names. osf.io/7tzek/
Where do people in low- and middle-income countries want to migrate? uu.se/en/centre/immi…
Vart vill människor i låg- och medelinkomstländer migrera? uu.se/centrum/immigr…
This started as a casual question in a second-year course: Do siblings from rich and poor families differ in how similar they are to each other? Thanks to fantastic coauthors, that curiosity has turned into a short descriptive paper now out in Labour Economics. 🧵
Great to see our comment now available online in the European Economic Review! (w/ @nikljako, @gunther_bensch, Carl Bonander, Felix Holzmeister & Abel Brodeur @I4Replication) 🙌- doi.org/10.1016/j.euro…
Collaborators are looking for participants for a new multi-analyst study using SOEP data. For more information on registration, eligibility criteria, requirements, procedure, and timeline, please visit manydaughters.com. Deadline for registration is April 27
The original paper is now retracted and our comment accepted for publication in the European Economic Review 🔥 sciencedirect.com/science/articl…
In a new @I4Replication report we replicate Islam (2019). Main issue: the randomized controlled trial was not randomized. And many other things on top of that. See full report for details. (w/ @nikljako, @gunther_bensch, Bonander, Holzmeister & Brodeur)
Stellar conference on migration @RF_Berlin! 🤩 Full program here: drive.google.com/file/d/18_uApp…
We are very happy to start the RFBerlin Migration Forum with @leah_boustan as our first keynote speaker, presenting “Where are the Streets of Gold? Comparing Immigrant Assimilation in the US and Europe”. #MigrationForum
Skriver i senaste @EkonomiskDebatt om "Nationalekonomi som ingenjörsvetenskap? Ett förslag till ett nytt utbildningsprogram". Samlar upp en del tankar och diskussioner som förts med kollegor och här på sociala medier. nationalekonomi.se/artikel/nation…
New report just dropped. Time for a thread. You can find the replication report and the author's response in the linked thread (in the second tweet).
#GDRI_rep Update 4: We have a new report. We reproduced the paper entitled "Parent–teacher meetings and student outcomes" by Islam @ European Economic Review. See below for links to report and author's response.
Oof. Replication of "Parent-teacher meetings" (EER 2019). "40 schools were selected randomly for the treatment. The remaining 36 schools served as the control group." The map of treatment and control schools: 1/
#GDRI_rep Update 4: We have a new report. We reproduced the paper entitled "Parent–teacher meetings and student outcomes" by Islam @ European Economic Review. See below for links to report and author's response.