@nikljako.bsky.social
Professor at Karlstad Business School, Karlstad University. Interested in dollars, health, and crime.
📢 New Working Paper: “Labor Supply under Temporary Wage Increases: Evidence from a Randomized Field Experiment”, with Mats Ekman and @kotsadam.bsky.social
🔭 arxiv.org/abs/2602.11992
🚨 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 — 👍 6 🔁 3 💬 1 📌 1
Dagens utdelning från Vetenskapsrådet (VR) till Sveriges nationalekonomer, endast två anslag om totalt 12 miljoner kronor.
Så inget trendbrott jämfört med Olles och min granskning.
www.tidningencurie.se/debatt/missg...
#GDRI_rep Update 9: We have been waiting a couple of months to make two announcements. A few journals were in the process of retracting GDRI article. The editors informed the authors and then lawyers got involved. Who knows how long it will take.
30.10.2025 13:41 — 👍 12 🔁 7 💬 1 📌 1
🚨 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 👉 www.econstor.eu/bitstream/10...
10.10.2025 13:31 — 👍 6 🔁 4 💬 0 📌 0
#GDRI_rep Update 8a: Major updates coming up over the next few weeks.
1st update: We reproduced "Parent–teacher meetings and student outcomes" some time ago. The paper was then retracted by the editors of the Euro Econ Rev.
Additional studies are connected (see diagram)
🧵
🚨 REPLICATION REPORT UPDATE: One year ago, a tweet by John Holbein alerted me, @ollefolke.bsky.social, and @jopieboy.bsky.social to a paper with a shocking result about Sweden’s law criminalizing the purchase of sex.🧵
09.05.2025 09:29 — 👍 385 🔁 198 💬 7 📌 30
A re-analysis of Ciacci's (2024) "Banning the purchase of sex increases cases of rape: Evidence from Sweden" Journal of Population Economics reveals major issues. A year ago, reproducers Adema, Folke, and Rickne found coding errors driving the paper's key results. Let's unpack this in a 🧵
09.05.2025 12:21 — 👍 49 🔁 24 💬 2 📌 4
Where we stand on the Islam-GDRI-Monash saga. A tally and some questions ...
a-ortmann.medium.com/tallying-the...
More traction for the Islam - GDRI saga. Monash claiming that he “holds no official position with GDRI and has not received any personal or material benefit from GDRI since its inception in 2010”. Hmmmh.
www.theaustralian.com.au/education/mo...
A Bangladesh-based organization focused on development economics and its founder have been churning out papers filled with misstatements, inconsistencies, ethical lapses and “statistically improbable data,” according to researchers involved in an ongoing effort to replicate the work.
11.04.2025 14:02 — 👍 16 🔁 4 💬 0 📌 0
The Islam - GDRI saga is gaining some traction.
retractionwatch.com/2025/04/10/r...
Fantastic coauthors made this forensic data investigation fire!
04.04.2025 07:42 — 👍 2 🔁 0 💬 0 📌 0The original paper is now retracted and our comment accepted for publication in the European Economic Review 🔥
27.03.2025 22:51 — 👍 13 🔁 4 💬 0 📌 1I am very happy that the editors took our report seriously. Hope more retractions will follow.
27.03.2025 21:52 — 👍 15 🔁 4 💬 1 📌 0
#GDRI_rep Update 6: Some of the authors have responded to our report on "Raising Health Awareness in Rural Communities" @ The Review of Economics and Statistics. Authors received our report Feb 6. A short 🧵
25.03.2025 12:05 — 👍 16 🔁 6 💬 1 📌 2Excellent find. How do you do this organizationally? How many enumerators do you need? How do you pay them? How do you get respondents to respond so well that your attrition rate over four waves is only 1.7%? The authors are rather shy on these issues and the costs. Clearly, GDRI worked magically.
16.03.2025 01:54 — 👍 7 🔁 3 💬 0 📌 0Some would probably say it is impossible. Or maybe everyone?
15.03.2025 10:13 — 👍 1 🔁 0 💬 0 📌 0This gem is hidden in the response to the response. ”…within a few hours and under extreme time pressure 11,843 households were visited and 22,686 respondents interviewed (two spouses in each household).” Indeed hard to believe 🫠
15.03.2025 09:37 — 👍 21 🔁 10 💬 1 📌 2Since we started mass reproducing GDRI, we have requested several replication packages. We have not managed to get a single new replication package as of today (excluding updated packages for one article at the request of editors).
14.03.2025 13:25 — 👍 12 🔁 4 💬 0 📌 0
#GDRI_rep Update 5: We have a new report. We reproduced the paper entitled "Partisan Effects of Information Campaigns in Competitive Authoritarian Elections: Evidence from Bangladesh" by Ahmed, Hodler and Islam published at the Economic Journal. See below for links to report and authors' responses.
14.03.2025 13:25 — 👍 18 🔁 13 💬 1 📌 2
Bli min kollega! Denna gång söker vi en statistiker (eller liknande) som gärna får jobba både i nationalekonomi och statistik.
13.03.2025 19:20 — 👍 3 🔁 2 💬 0 📌 0In a new @i4replication.bsky.social 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/ @carlbonander.bsky.social, @nikljako.bsky.social, @flxhlzmstr.bsky.social, Bensch & Brodeur)
11.03.2025 18:56 — 👍 24 🔁 9 💬 2 📌 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.
11.03.2025 17:12 — 👍 20 🔁 15 💬 1 📌 3#GDRI_rep Update 3: The paper "Improving Hygiene and Sanitation through Parental Skill Training" by Asadul Islam, Umair Khalil and Tabassum Rahman was conditionally accepted at Economic Development and Cultural Change. We requested a replication package. It has now been withdrawn
09.03.2025 21:05 — 👍 32 🔁 11 💬 1 📌 3We have a new report out about the #GDRI_rep. The paper has not been retracted but all three authors have withdrawn their names.
03.03.2025 18:56 — 👍 10 🔁 7 💬 0 📌 1#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/
03.03.2025 18:40 — 👍 9 🔁 9 💬 1 📌 4Kom och jobba hos mig! Jag behöver minst en forskningsassistent, heltid i ett år, tillträde snarast.
Meriterande med dokumenterad erfarenhet av:
* Enkäter/intervjuer
* Statistisk/geografisk analys
* Kunskap brottslighetens/otrygghetens geografi
* Brottsdata
web103.reachmee.com/ext/I005/101...
#GDRI_rep Update 1: I4R are now reproducing all published papers that use data from GDRI, or are closely related in other ways. Here is a first update on our work. 🧵
03.03.2025 01:48 — 👍 27 🔁 20 💬 1 📌 4
