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Martin Friedrich

@martinfriedrich.bsky.social
2K followers 1.3K following 89 posts

Researching labor markets at IAB. Here privately, mostly for #EconSky and politics. Passionate 🏊🏻‍♂️ and proudly 🏳️‍🌈. Personal website: mfriedrich.online.

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Reposted by Martin Friedrich
IAB @iabnews.bsky.social · 05/05/2026
Das passende YouTube-Short zur KI-Nutzung in den Betrieben mit IAB-Forscher @martinfriedrich.bsky.social gibt es hier: www.youtube.com/shorts/T60pl... #KI #AI #KünstlicheIntelligenz #Digitalisierung #SciSky #ResearchSky
youtube.com
KI in deutschen Betrieben: Wer profitiert? Wer verliert?
YouTube video by IAB - Institut für Arbeitsmarkt- und Berufsforschung der Bundesagentur für Arbeit
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Matthias Collischon 🇺🇦🇪🇺 @mcollischon.bsky.social · 13/11/2025
Ich habe mit dem @zdfde.bsky.social über die aktuelle Debatte zu Minijobs gesprochen: www.zdfheute.de/politik/deut...
zdfheute.de
Minijobs: Warum sie für Millionen zur Falle werden
Unionspolitiker wollen Minijobs abschaffen. Gewerkschaften applaudieren, Arbeitgeber warnen. Warum das Modell so umstritten ist.
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Paul Goldsmith-Pinkham @paulgp.com · 02/11/2025
Dropping a beta version of this page while everyone is up and processing baseball! This tool lets you search the full text of papers from the American Economic Review, American Economic Journal series, and over 30,000 NBER working papers. paulgp.com/econlit-pipe...
paulgp.com
Economics Literature Search
Full-text search across 15,000+ papers from top economics journals and NBER working papers. Track how empirical methods have evolved over time.
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ROCKWOOL Foundation Berlin @rfberlin.bsky.social · 02/09/2025
🚨 #CallForPapers We invite submissions to the RFBerlin Migration Forum. 🗓️ Deadline: 2 Nov 2025. Submit your work now and share with colleagues! #MigrationForum2026 app.oxfordabstracts.com/stages/79526...
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Jonas Jessen @jonasjessen.bsky.social · 22/08/2025
In January 2026 the excellent Perspectives on (Un-)Employment PhD Workshop is taking place, organised by @iabnews.bsky.social & @fauwiso.bsky.social 🏗️ Keynotes: Paula England & David Dorn 💡 Deadline: 30 September 2025 Aimed at: PhD Students in economics & sociology More info: shorturl.at/jATG3
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Martin Friedrich @martinfriedrich.bsky.social · 18/08/2025
We’re thrilled to host Ulrike Malmendier at IAB for our next Special Lecture. Join us onsite or online to hear about her fascinating work. 🕑 September 16, 2025 | 1:00–2:30 PM CET 🔗 Register here to receive an onsite ticket or MS Teams link: eveeno.com/iab-speciall...
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Daniel Zhao @danielzhao.bsky.social · 13/08/2025
State of the tech job market halfway through 2025? Still stagnant, still not much better than the last 2.5 yrs. Tech employment has dropped modestly from its Dec 2022 peak, falling 1.9%, or 76,000 jobs, with no improvement in 2025, despite the hype around AI + data center investment. 1/
Bar chart of month over month change payroll employment in manually defined tech industry. In H1 2025, 2,000 jobs were lost on average monthly. This is a continuation of stagnation/modest job losses in tech started at the beginning of 2023.

Sourced using data from Bureau of Labor Statistics, Current Employment Statistics from the July 2025 release.Line chart of payroll employment in manually defined tech industry. Tech employment is down 1.9% from the December 2022 peak or 76,000 fewer jobs.

Sourced using data from Bureau of Labor Statistics, Current Employment Statistics from the July 2025 release.
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John Holbein @johnholbein1.bsky.social · 03/08/2025
Look at what happens to male teacher salaries (blue line) v.s. female teacher salaries (red line) after collective bargaining laws expire.
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Casey McQuillan @caseymcquillan.bsky.social · 16/07/2025
🚨🚨🚨 NEW WORKING PAPER: "The Benefits of UI for Marginally Attached Workers" with Brendan Moore ➡️ We find that UI minimally delays re-employment, but substantially improves labor market outcomes for low-income workers 🧵1/13
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Princess Lisa SkyWalker @paraprod.bsky.social · 13/07/2025
Good news for the WPNBA! They've called in a Nobel prize winning economist who is a Harvard professor. She is working for them for free on the CBA negotiation. She agrees with the players so far and is calling BullShit on the owners. 🏀😺 #WNBASKY #WNBA www.sportico.com/leagues/bask...
sportico.com
WNBA Union Calls on Nobel-Winning Economist in CBA Talks
The WNBA's player union has tapped Nobel Prize winner Claudia Goldin to assist as an unpaid consultant during CBA negotiations.
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Martin Friedrich @martinfriedrich.bsky.social · 13/07/2025
Gestern berichteten die Tagesthemen über die Arbeitsbedingungen bei Lieferdienst-Plattformen und einen drohenden Warnstreik. Ich durfte kurz für @iabnews.bsky.social zu Wort kommen. www.tagesschau.de/multimedia/s...
tagesschau.de
Warnstreik bei Lieferando - Was die Fahrer wollen
Warnstreik bei Lieferando - Was die Fahrer wollen
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Simon Jäger @simonjaeger.bsky.social · 11/07/2025
Very excited that our paper (joint with Jarkko Harju and ‪@schoefer.bsky.social‬) on "Voice at Work" is published in the American Economic Journal: Applied Economics. We study what happened when workers in Finnish firms got a right to worker voice on the corporate board. 👇
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John Holbein @johnholbein1.bsky.social · 06/07/2025
Have you considered using LLMs to code open-ended survey responses? This looks like a must read for you! "An Empirical Investigation into the Utility of Large Language Models in Open-Ended Survey Data Categorization" osf.io/preprints/so...
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Alex @s3alfisc.bsky.social · 06/07/2025
𝐏𝐲𝐅𝐢𝐱𝐞𝐬𝐭 0.30.1 is on 𝐏𝐲𝐏𝐢 and I am extremely happy with this release, mostly because of two 𝐧𝐞𝐰 𝐟𝐞𝐚𝐭𝐮𝐫𝐞𝐬: a Rust back end for all performance critical parts and quantile regression.
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Nye Cominetti @nyecominetti.bsky.social · 01/07/2025
That awkward thing where you write an annual report called 'Low Pay Britain' but 'low pay' has been all but eliminated (on the standard hourly pay < 2/3 median measure). (Our 2025 Low Pay Britain report is out on Thursday, launch event here www.resolutionfoundation.org/events/new-d... )
The share of employees in low pay (defined as people with hourly pay below 2/3 median) has fallen to an all time low of 3 per cent thanks to increases in the minimum wage.
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NBER @nber.org · 01/07/2025
A pair of similar Black and White workers do not earn the same amount at their next employer, from Isaac Sorkin www.nber.org/papers/w33946
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German Embassy London @uk.diplo.de · 17/06/2025
On this day in 1953, around 1 million people in East Germany took to the streets to protest against the regime. The largely peaceful uprising was violently suppressed. West Germany celebrated the 1953 uprising as a public holiday until German Unity in 1990.
17 June 1953: Soviet tanks are gathering in East Berlin, by-standers are gathering in West Berlin and watch what is happening.Demonstration in Leipzig on 17 June 1953.
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Christian Thiels @christianthiels.eurosky.social · 17/06/2025
72 years ago today, brave men and women in East Germany took to the streets to stand up against the Soviet-sponsored socialist dictatorship of the SED-party. Their resistance was crushed by Russian tanks. But their legacy lived on and history proves that freedom will prevail!
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Martin Friedrich @martinfriedrich.bsky.social · 12/06/2025
Only 5 days left to apply for our postdoc position in labor economics at @iabnews.bsky.social. #econsky
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Jan Brülle @janbruelle.bsky.social · 20/05/2025
Gerne Weiterleiten: Promotionsstelle ab Herbst 2025 in meinem DFG-Projekt zu In-Work Benefits und Aufstockern im SGB II. Im schönen Wiesbaden am Bundesinstitut für Bevölkerungsforschung: www.bib.bund.de/DE/Institut/...
bib.bund.de
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AEA Journals @aeajournals.bsky.social · 11/06/2025
Forthcoming in AER: Insights: "Nonbinary and Transgender Identities and Earnings: Evidence from a National Census" by Christopher S. Carpenter, Donn Feir, Krishna Pendakur, and Casey Warman. www.aeaweb.org/articles?id=...
aeaweb.org
Nonbinary and Transgender Identities and Earnings: Evidence from a National Census
(Forthcoming Article) - We provide the first evidence from a large population Census on earnings disparities experienced by nonbinary people—those who do not exclusively identify as men or women—and t...
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Tina Hinz @tinahinz.bsky.social · 11/06/2025
📣 Kommt digital vorbei und schaut, welche Daten für die #Forschung bei uns auf euch warten!
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Yuliya Kosyakova @yuliyakosyakova.bsky.social · 11/06/2025
📢 Just released: First results of our new large-scale longitudinal survey IMPa on return and onward migration in Germany. 50,000+ participants in wave 1 (Dec 2024–Apr 2025). 📄 Full report (in German): doku.iab.de/forschungsbe... 📘 English version coming soon — stay tuned!
doku.iab.de
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European Commission @ec.europa.eu · 07/06/2025
Hop on, ride off! 🚆🚲 As of today, bikes are welcome on-board of EU trains. All new and upgraded trains in the EU will have dedicated spots for full-sized bicycles. So, you can ride wherever the train takes you!
Illustration of a woman with a helmet carrying a bicycle while boarding a blue and white train. The text reads: ‘Bikes on trains? You want it – EU got it!’ An EU flag is shown on the ground and in the top-left corner.
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Chise @sailorrooscout.bsky.social · 05/06/2025
THIS IS AMAZING! Researchers have made a SIGNIFICANT breakthrough in the quest for an HIV cure. By developing a method that enables the delivery of an mRNA-based therapy to make the virus VISIBLE WITHIN white blood cells, this approach paves the way to FULLY CLEAR the virus from the body. 🧪🧵⬇️
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ROCKWOOL Foundation Berlin @rfberlin.bsky.social · 28/05/2025
🆕 RFBerlin-CReAM Discussion Paper: Felix Degenhardt and @jnimczik.bsky.social examine whether gig jobs in online food delivery (OFD) are a stepping stone for refugees entering the Austrian labor market. 🧵
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ROCKWOOL Foundation Berlin @rfberlin.bsky.social · 02/06/2025
A new study by Albrecht Glitz (Project Leader at RFBerlin), Susanne Kohaut and Iris Möller based on @iabnews.bsky.social data shows that 9% of all businesses in Germany have fallen victim to an espionage attack in the past five years.
rfberlin.com
Nine percent of businesses in Germany fell victim to espionage
Authors Albrecht Glitz, PhD, is Project leader at the ROCKWOOL Foundation Berlin (RFBerlin) and Associate Professor at Universitat Pompeu Fabra in BarcelonaAlbrech...
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Achim Zeileis @zeileis.org · 05/06/2025
📢 Come work with us! 🏛️ Faculty of Economics & Statistics, UIBK @econstatuibk.bsky.social‬ @uniinnsbruck.bsky.social‬ ‼️ Three job openings for Full Professor positions - Data Science - Microeconomics - Behavioral Economics Please share! #datascience #economics www.uibk.ac.at/de/info-beru...
uibk.ac.at
Aktuelle Ausschreibungen – Universität Innsbruck
None
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Daniele Girardi @dgirardi.bsky.social · 06/06/2025
New updated slides deck about Local Projections Difference-in-Differences (LP-DiD) LP-DiD is a fast and simple to implement regression-based framework for estimating DiD, which can reproduce popular recent estimators as specific instances. danielegirardi.github.io/posts/docume...
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Joey Politano🏳️‍🌈 @josephpolitano.bsky.social · 05/06/2025
I’m so fucking here for this breakup
The easiest way to save money in our Budget, Billions and Billions of Dollars, is to terminate Elon’s Governmental Subsidies and Contracts. I was always surprised that Biden didn’t do it!
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Maximilian Kasy @maxkasy.bsky.social · 04/06/2025
Updated my "computational resources" page: maxkasy.github.io/home/computa... Added resources for Python: - Polars for data wrangling & large data sets - Vega-Altair for data visualization - GreatTables for table formatting and exporting - Scikit-Learn for supervised learning
maxkasy.github.io
Useful computational ressources
Research on machine learning, experimental design, economic inequality, and optimal policy
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IAB @iabnews.bsky.social · 03/06/2025
💼 Der Anteil der Teilzeitbeschäftigten stieg im ersten Quartal 2025 auf 39,8 Prozent. „Die #Teilzeitquote liegt 2025 auf Rekordniveau – aber genauso die Arbeitszeit von Teilzeitbeschäftigten“, erklärt IAB-Ökonom Enzo Weber. Zur #IABArbeitszeitrechnung geht es hier 👉 iab.de/daten/iab-ar...
Die Grafik zeigt die Entwicklung der Teilzeitquote von Erwerbstätigen jeweils im ersten Quartal der Jahre 2014 bis 2025. Die Teilzeitquote steigt von unter 38 Prozent im ersten Quartal 2014 auf 39,8 Prozent im ersten Quartal 2025. Dies ist ein neuer Höchstwert.
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Joey Politano🏳️‍🌈 @josephpolitano.bsky.social · 04/06/2025
Good morning. It is now 12:01 AM, which means tariffs on nearly all steel & aluminum have been raised to 50%. That includes an increase in the tariffs on steel & aluminum content in derivatives, plus a new tariff on derivatives' non-metal content based on country-level tariffs
a graph of chances in tariff rates over time
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Bastian Schulz @bsecon.bsky.social · 30/04/2025
🚨 CALL FOR PAPERS 🚨 -- 1st Aarhus Workshop on Labor Markets -- We welcome empirical and structural work with applications on labor market dynamics, policies, and outcomes. 📍Where? Aarhus University, Denmark 📆 When? 22/10 - 24/10 ⏰ Deadline: 22/8 Submit: app.oxfordabstracts.com/stages/78820...
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Martin Friedrich @martinfriedrich.bsky.social · 02/06/2025
We're hiring a postdoc in labor economics at IAB Nuremberg! Join @ineshelmecon.bsky.social, @jnimczik.bsky.social & me on a project about gig work. 🗓️ Start: 1 Oct 25 💶 Salary ≥ €5200/month
 🌱 Possibility to apply for tenure track program Apply here until 17 June: econjobmarket.org/positions/11...
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Duncan Weldon @duncanweldon.bsky.social · 01/06/2025
Good chart. on.ft.com/3FgBiJC Dollar’s correlation with Treasury yields breaks down
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Queer Politics Webinar @queerseminar.bsky.social · 30/05/2025
🌈 Be sure to join us next Thursday for the last session in our 2024-2025 programme! @laiabalcells.bsky.social will showcase her super interesting experimental work linking anti-LGBTQ+ repression to present attitudes in Spain. 📆 Mark your calendars!
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Ines Helm @ineshelmecon.bsky.social · 29/05/2025
📢 We are looking for a postdoctoral researcher at the Institute for Employment Research (@iabnews.bsky.social) for our research project on the gig economy! #EconSky Link: econjobmarket.org/positions/11... start date: October 2025 Some German knowledge is required.
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ian bremmer @ianbremmer.com · 28/05/2025
before and after today’s glacier collapse that buried 90% of blatten, switzerland
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Chris Giles @chrisgiles.ft.com · 29/05/2025
We normally love a bit of doom and gloom... ... but healthier longer lives and more women working for longer means advanced economies have seen a big growth in average working lives ... exactly what was not expected in 2000 on.ft.com/4dzBXCo
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IAB @iabnews.bsky.social · 23/05/2025
⚠️ #Rechtsextremismus als Standortrisiko? Die IAB-Forscherin Tanja Buch hat die Auswirkungen von Fremdenfeindlichkeit auf die #Arbeitsmigration untersucht. Im Podcast des Mediendienst Integration berichtet sie über die Ergebnisse der Studie: mediendienst-integration.de/artikel/rech... #econsky
mediendienst-integration.de
Folge 10 / Arbeitsmigration - Rechtsextremismus als Standortrisiko?
Rechte Einstellungen in einer Region schrecken ausländische Fachkräfte ab. Das zeigt jetzt erstmals eine große Arbeitsmarkt-Analyse. Im Podcast erklärt die IAB-Forscherin Tanja Buch, warum das besonde...
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Jonas Jessen @jonasjessen.bsky.social · 26/05/2025
📣CALL FOR PAPERS 📣 Workshop on the economics of ageing and pensions tinyurl.com/2wez4wp7 Where? Berlin @wzb.bsky.social 🐻 When? November 20-21 November 🍂 For whom? Researchers at all stages in their career Anything else? Accomodation & travel cost will be covered 🚅🏨 Please circulate!
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NBER @nber.org · 25/05/2025
A new method to estimate treatment effects on long-term outcomes that uses intermediate outcomes to correct for selection bias, relaxes assumptions of popular surrogate estimators, from Susan Athey, Raj Chetty, and Guido Imbens www.nber.org/papers/w33817
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John Holbein @johnholbein1.bsky.social · 26/05/2025
Did you know that the COVID-19 pandemic caused ⚡⚡⚡ lighting ⚡⚡⚡ strikes to decline a lot across the globe? Why? Less travel ➡️ fewer anthropogenic aerosols in the air ➡️ fewer clouds ➡️ less lightning. So when the world paused during the pandemic, storms got notably less intense. Cool, eh?
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Maximilian Kasy @maxkasy.bsky.social · 24/05/2025
🤖 Software discovery of the week 🤖 I just started using Polars for datawrangling in Python, and am really impressed how fast it is when handling large datasets (orders of magnitude faster than Pandas). Also, the syntax feels very natural, coming from dplyr in R: pola.rs
pola.rs
Polars
DataFrames for the new era
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Stefan Schubert @stefanschubert.bsky.social · 24/05/2025
How economics has changed
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VoxEU @ CEPR @voxeu.org · 23/05/2025
Data from West #Germany from the 1960s to 2013 show that the child penalty has increased over time because women are earning more, so the opportunity cost of motherhood has grown. Ulrich Glogowsky, Emanuel Hansen, Dominik Sachs, Holger Lüthen cepr.org/voxeu/column... #EconSky
Graph showing that while the earnings gap between men and women has decreased over time, the percentage of gender inequality in earnings due to child-related inequality has risen over the years. 

Reductions in women's labour supply after childbirth remain a persistent driver of gender earnings inequality. Using data from West Germany from the 1960s to 2013, this column explores the evolution of the ‘child penalty’ – post-birth earnings reductions for mothers – in Germany. The child penalty increased over time because women are earning more, so the opportunity cost of motherhood has grown. Family policies can affect gender inequality through changing post-birth earnings decisions. Future research should examine how policies influence pre-birth choices and interact with gender norms over the long run.
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Dr. David Miller 🏳️‍🌈 @davidimiller.bsky.social · 22/05/2025
🧪 Detailed data viz NYT article, out today, on the extent of funding cuts at the National Science Foundation. This "broken pie chart" is neat & new to me: Powerfully shows the slowdown in new NSF awards across areas. www.nytimes.com/interactive/...
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NBER @nber.org · 15/05/2025
Data on firm relocations reveal that nearly all wage differences between cities stem from the spatial sorting of workers and firms; Location-specific factors explain only 2–5 percent, from Pauline Carry, Benny Kleinman, and Elio Nimier-David www.nber.org/papers/w33779
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Monique Morrissey @moniquemorrissey.bsky.social · 13/05/2025
Universal Pre-K led to a 1.2% rise in labor force participation, a 1.5% increase in employment, and a 1.6% growth in hours worked according to important new research by @kirabojackson.bsky.social, @julia-turner.bsky.social & @jacobbastian.bsky.social. www.nber.org/papers/w33767
nber.org
Universal Pre-K as Economic Stimulus: Evidence from Nine States and Large Cities in the U.S.
Founded in 1920, the NBER is a private, non-profit, non-partisan organization dedicated to conducting economic research and to disseminating research findings among academics, public policy makers, an...
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