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Mathias Dolls

@mathiasdolls.bsky.social
375 followers 238 following 35 posts

Economist, Deputy Director of @ifo_Institut Center for Macroeconomics and Surveys, Interests: Public Econ | Labor markets | Econ Policy. Views my own. sites.google.com/view/mathiasdolls

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Mathias Dolls @mathiasdolls.bsky.social · 18/08/2026
when many cities are debating stronger forms of market intervention. Read the full column here: cepr.org/voxeu/column... 3/3
cepr.org
How regulatory risk and expropriation threats are affecting Berlin’s housing market
Housing shortages and rising rents have become a source of political pressure in many countries, prompting calls for stronger intervention in rental markets. This column shows that the effects of such...
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Mathias Dolls @mathiasdolls.bsky.social · 18/08/2026
The piece discusses how regulatory risk affects investment incentives, market dynamics, and ultimately housing supply. Berlin offers an important case for understanding the broader economic consequences of policy uncertainty in housing markets, especially at a time 2/3
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Mathias Dolls @mathiasdolls.bsky.social · 18/08/2026
Our new VoxEU column is out (with @clemensfuest.bsky.social, David Gstrein, @ckrolage.bsky.social, Florian Neumeier): How regulatory risk and expropriation threats are affecting Berlin’s housing market We examine how policy uncertainty + expropriation threats have shaped Berlin’s housing market 1/3
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VoxEU @ CEPR @voxeu.org · 25/03/2026
Steven Davis, Cevat Giray Aksoy, Jose Maria Barrero, @nickbloom.bsky.social, Katelyn Cranney, @mathiasdolls.bsky.social, & Pablo Zarate find that both planned and realised fertility are higher among adults who work from home at least one day a week. cepr.org/voxeu/column... #EconSky
The figure reports mean lifetime fertility (realised + planned) by work-from-home (WFH) status. The sample is restricted to respondents aged 20 to 45 who live with a partner. ‘No one WFH’ means neither the respondent nor the partner works from home; ‘Only self WFH’ means only the respondent works from home at least one day per week; and ‘Both WFH’ means both partners work from home at least one day per week.

Fertility has fallen to very low levels in many advanced economies, and many pro-natalist policies appear to deliver modest gains at high cost. Using survey data covering 38 countries, this column shows that both planned and realised fertility are higher among adults who work from home at least one day a week. For couples, fertility is higher still when both partners work from home, indicating that hybrid work may be an overlooked margin for easing the trade-off between family and paid work.
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VoxEU @ CEPR @voxeu.org · 02/03/2026
Data from 21 European countries show the progressivity of personal income tax systems gives rise to large tax-to-base elasticities, implying substantial potential for fiscal drag @mathiasdolls.bsky.social, M Freier, @estebangmiralles.bsky.social, A Mazzon, S Riscado cepr.org/voxeu/column... #EconSky
Description of the figure: Comparing actual 2023 revenues against counterfactual scenarios in which the 2019 system had been kept unchanged or fully indexed shows that governments limited fiscal drag to varying degrees.

The 2022 inflationary spike in Europe has brought renewed interest in fiscal drag. Using harmonised microdata for 21 European countries, this column documents that the progressivity of personal income tax systems gives rise to large tax‑to‑base elasticities, implying substantial potential for fiscal drag if parameters are not adjusted. These effects are more prevalent for labour income and for taxpayers at the bottom and middle of the income distribution. Furthermore, it documents very heterogeneous policy responses across countries over 2019–2023, ranging from incomplete offsetting to over‑compensation of potential fiscal drag.
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CESifo @cesifo.org · 14/11/2025
Working Paper! 📢 “How Does Information About Inequalities Affect Fairness Views and Policy Preferences? Evidence from a Randomized Survey Experiment” ✍️Julia Baarck @mathiasdolls.bsky.social @lisawindsteiger.bsky.social Find out more in the latest CESifo Working Paper! 🔗 www.ifo.de/en/cesifo/pu...
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Andreas Peichl @apeichl.bsky.social · 24/10/2025
Speaking of debt: Framing, guilt, and economic choices online at @voxeu.org @cepr.org @mathiasdolls.bsky.social @lisawindsteiger.bsky.social cepr.org/voxeu/column...
cepr.org
Speaking of debt: Framing, guilt, and economic choices
In many Germanic languages, the word for ‘debt’ also means ‘guilt’. This column explores whether the linguistic overlap leads to greater debt aversion in Germany, the Netherlands, Sweden, and Switzerland. Using a guilt-laden term reduces willingness to borrow, lowers approval for government debt, and influences firms’ financing plans and politicians’ framing of fiscal policy. While support for public debt goes down with use of the laden term, the effect disappears when the purpose of the debt is clear. Linguistic framing may help guide borrowing toward socially optimal levels.
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Mathias Dolls @mathiasdolls.bsky.social · 10/10/2025
The paper provides new evidence on the fiscal and distributional implications of fiscal drag in Europe and offers useful data for public-finance analysis. Many thanks to all contributors! (2/2)
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Mathias Dolls @mathiasdolls.bsky.social · 10/10/2025
Pleased to share collaborative research with the ESCB Network of Microsimulation Modelling: “Fiscal drag in theory and practice – a European perspective.” Now available as ECB Working Paper: www.ecb.europa.eu/pub/pdf/scpw... (1/2)
ecb.europa.eu
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Andreas Peichl @apeichl.bsky.social · 29/09/2025
Approval of Government Debt in Germany Rises When the Term “Kredite” Is Used Instead of “Schulden” Press release on our new @cesifo.org WP w @mathiasdolls.bsky.social @lisawindsteiger.bsky.social + Cevat & Justyna: www.ifo.de/en/press-rel...
ifo.de
Client Challenge
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Mathias Dolls @mathiasdolls.bsky.social · 13/08/2025
Words matter! Change the language about debt → change how people think, feel, and choose. Our new paper featured in the @faznet.bsky.social : zeitung.faz.net/fas/wirtscha... Full paper (with C. Aksoy, J. Klejdysz, @apeichl.bsky.social, @lisawindsteiger.bsky.social): www.ifo.de/en/cesifo/pu...
zeitung.faz.net
Schuld und Schulden
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Rudi Bachmann @bachmannrudi.bsky.social · 24/05/2025
Was, glaube ich, immer noch nicht richtig verstanden wird bei den #Zoellen von #Trump : Es geht hier gar nicht um Höhe, unfaire Handelspraktiken, etc. Es geht einzig und allein um einen weiteren Versuch (nach der Ukraine), Europa zu schwächen.
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Mathias Dolls @mathiasdolls.bsky.social · 21/05/2025
(with Julia Baarck and @lisawindsteiger.bsky.social). Thanks to the organizers for putting together such a great program! www.lse.ac.uk/Internationa... (2/2)
lse.ac.uk
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Mathias Dolls @mathiasdolls.bsky.social · 21/05/2025
I very much enjoyed attending the inspiring International Research Workshop on Perceptions of Inequality at @lseinequalities.bsky.social. I presented my paper "How Do Perceptions of Inequalities Affect Fairness Views and Political Preferences? Evidence from a Randomized Survey Experiment" (1/2)
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Mathias Dolls @mathiasdolls.bsky.social · 10/05/2025
Unser paper (mit @pschuele.bsky.social & @lisawindsteiger.bsky.social) zeigt, dass Informationen von den Teilnehmern unseres Experiments nur dann akzeptiert werden, wenn sie nicht zu stark mit bestehenden Überzeugungen kollidieren. Dies stellt politische Kommunikation vor große Herausforderungen.2/2
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Mathias Dolls @mathiasdolls.bsky.social · 10/05/2025
Lesenswerter Beitrag in der morgigen FAS über unsere kürzlich veröffentlichte Studie, in der wir untersuchen, warum die Einschätzungen in der Bevölkerung zu Mietpreiskontrollen so stark von jenen in unserer Profession abweichen (1/2): zeitung.faz.net/fas/wirtscha...
zeitung.faz.net
Geliebter Mietendeckel
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Mathias Dolls @mathiasdolls.bsky.social · 30/04/2025
Unsere Studie ist daher ein weiterer Hinweis darauf, dass es, u.a. aufgrund des in uns allen ausgeprägten Wunsches nach kognitiver Konsistenz, schwierig ist, im Bereich wirtschaftspolitischer Maßnahmen persönliche Überzeugungen durch wissenschaftliche Informationen zu beeinflussen. END
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Mathias Dolls @mathiasdolls.bsky.social · 30/04/2025
Unsere Ergebnisse stehen im Einklang mit sogenanntem „prior-biased updating“: nach dieser Theorie verändern Menschen ihre Meinung nur, wenn sie Informationen erhalten, die grundsätzlich im Einklang mit den eigenen Überzeugungen stehen. Ist dies nicht der Fall, ändert sich die Meinung nicht. 8/n
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Mathias Dolls @mathiasdolls.bsky.social · 30/04/2025
Allerdings sind diese Ergebnisse getrieben von Befragten, deren Überzeugungen bereits grundsätzlich mit den erhaltenen Informationen übereinstimmten. Befragte, die z.B. stark von den Vorteilen des Mietendeckels überzeugt sind, lassen sich durch Effizienzargumente nicht überzeugen. 7/n
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Mathias Dolls @mathiasdolls.bsky.social · 30/04/2025
Befragte, die über Effizienzverluste informiert wurden, hatten danach eine weniger positive Einstellung zum Mietendeckel. Genau andersherum ist es, wenn man aufzeigt, dass Mietendeckel Bestandsmieter schützen und so Gentrifizierungsprozesse verlangsamen können. 6/n
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Mathias Dolls @mathiasdolls.bsky.social · 30/04/2025
Um das herauszufinden, haben wir ein Informationsexperiment unter 18.000 Befragten durchgeführt. Dabei wurden verschiedene Gruppen nicht nur mit den beschriebenen Effizienzverlusten konfrontiert, sondern auch mit weiteren potenziell relevanten Aspekten. 5/n
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Mathias Dolls @mathiasdolls.bsky.social · 30/04/2025
und zu einer Fehlallokation von Wohnraum (sog. Lock-in Effekt). Wieso war der Mietendeckel dennoch so beliebt? Aus Unkenntnis dieser negativen Effekte, oder befürworten viele Menschen Mietpreiskontrollen aus anderen Gründen, trotz der Effizienzverluste? 4/n
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Mathias Dolls @mathiasdolls.bsky.social · 30/04/2025
Gleichzeitig gibt es kaum eine wirtschaftspol. Maßnahme, bei der sich die ökonomische Forschung derart einig in ihrer Ablehnung zeigt wie bei Mietpreiskontrollen. Denn diese führen tendenziell zu einer Verringerung des Angebots an Mietwohnungen, Vernachlässigung von Instandhaltungsarbeiten, 3/n
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Mathias Dolls @mathiasdolls.bsky.social · 30/04/2025
In der Studie untersuchen wir am Bsp des Berliner Mietendeckels, wieso Mietpreiskontrollen eine derart breite Zustimmung genießen. Der von 2020-21 bestehende Berliner Mietendeckel war eine besonders strenge Form der Mietpreiskontrolle, die laut Umfragen von 3/4 der Bevölkerung befürwortet wurde.2/n
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Mathias Dolls @mathiasdolls.bsky.social · 30/04/2025
Unser paper "Which factors affect public support for economic policies? Evidence from a survey experiment about rent control in Germany" (mit @pschuele.bsky.social und @lisawindsteiger.bsky.social) ist in Economica veröffentlicht: onlinelibrary.wiley.com/doi/10.1111/... (1/n)
onlinelibrary.wiley.com
Which factors affect public support for economic policies? Evidence from a survey experiment about rent control in Germany
We conduct a survey experiment among 18,000 respondents in Germany to examine the determinants of support for rent control policies. We find that highlighting undesirable price and supply effects low....
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Mathias Dolls @mathiasdolls.bsky.social · 24/04/2025
Great piece in The Economist covering our latest research on Working from Home. Despite much coverage of return-to-office mandates put out by large firms, work from home arrangements have been stable since 2023. www.economist.com/finance-and-...
economist.com
Unlike everyone else, Americans and Britons still shun the office
What is their love of working from home doing to their economies?
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Henning Hermes @henninghermes.com · 30/03/2025
What a blast! We had a wonderful, inspiring & FUN 3rd Annual Conference at ifo Fürth 🤩🤓 🥳 Fantastic keynotes by Massimo Morelli, @johannarickne.bsky.social & @michelebelot.bsky.social as well as many many great presentations and very nice poster session 🚀
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Mathias Dolls @mathiasdolls.bsky.social · 16/12/2024
It was a great honor and pleasure to give the keynote lecture at the First Workshop of the ESCB Network of Microsimulation Modelling at the Banco de Portugal! Many thanks to the organizers for inviting me and for putting together such a great program! www.bportugal.pt/evento/first...
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Lucas Guttenberg @lucasguttenberg.bsky.social · 25/11/2024
EU econ bubble: We are hiring a senior expert on EU economic policy. All the details in the thread and the link, spread the word!
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Mathias Dolls @mathiasdolls.bsky.social · 25/11/2024
Our results indicate that the tax burden of the real estate transfer tax mainly falls on the sellers. We show that higher transaction taxes have a larger price effect on properties with shorter holding periods because these properties are traded more frequently. (3/3)
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Mathias Dolls @mathiasdolls.bsky.social · 25/11/2024
This was a great collaboration, thanks to my amazing coauthors! Link to the paper: www.sciencedirect.com/science/arti... (2/3)
sciencedirect.com
Who bears the burden of real estate transfer taxes? Evidence from the German housing market
This paper examines the effects of real estate transfer taxes (RETT) on property prices using a rich micro dataset of roughly 17 million German proper…
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Mathias Dolls @mathiasdolls.bsky.social · 25/11/2024
I'm delighted to share that our paper 'Who bears the burden of real estate transfer taxes? Evidence from the German housing market' (with @clemensfuest.bsky.social, @ckrolage.bsky.social and Florian Neumeier) has been published in the Journal of Urban Economics. (1/3)
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Mathias Dolls @mathiasdolls.bsky.social · 21/11/2024
Great workshop in Salzburg for the next two days👇. I very much appreciate the opportunity to present a project on the new digital pension planning tool at an early stage!
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Mathias Dolls @mathiasdolls.bsky.social · 07/10/2024
The paper concludes with a political economy discussion highlighting key design fea-tures of the re-insurance that are important for its ability to provide macroeconomic stabilization and to minimize the risk of moral hazard. (3/3)
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Mathias Dolls @mathiasdolls.bsky.social · 07/10/2024
The paper provides insights on the potential added value of a re-insurance by study-ing the impact of different stabilization channels, trigger variables and activation rules. It shows that that the re-insurance could offset up to 18% of output shocks. (2/3)
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Mathias Dolls @mathiasdolls.bsky.social · 07/10/2024
Happy to share that my paper `An unemployment re-insurance scheme for the euro-zone? Stabilizing and redistributive effects’ has been published in the European Eco-nomic Review (1/3): www.sciencedirect.com/science/arti...
sciencedirect.com
An unemployment re-insurance scheme for the eurozone? Stabilizing and redistributive effects
This paper develops a decomposition framework to study the importance of different stabilization channels of an unemployment re-insurance scheme for t…
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Mathias Dolls @mathiasdolls.bsky.social · 22/03/2024
Very cool to receive this e-mail from the Chair of the Council of Economic Advisers: www.whitehouse.gov/cea/written-...
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Andreas Peichl @apeichl.bsky.social · 14/11/2023
The open letter from 400+ IZA fellows to the Deutsche Post Foundation in response to the new leadership announcement at IZA is online: docs.google.com/document/d/1...
docs.google.com
Letter Deutsche Post Foundation
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Mathias Dolls @mathiasdolls.bsky.social · 18/10/2023
Mit MDR Aktuell habe ich darüber gesprochen, wie deutsche Unternehmen die Produktivität im hybriden Homeoffice-Modell einschätzen und ob eine (vollständige) Rückkehr ins Büro zu erwarten ist. Hier zum Nachhören: www.mdr.de/mdr-aktuell-...
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Mathias Dolls @mathiasdolls.bsky.social · 17/10/2023
Majority of German companies does not believe in negative productivity effects of the hybrid working from home model. This is the result from the latest ifo Business Survey among 9,000 German companies in August: www.ifo.de/en/facts/202... #WFH #Productivity
ifo.de
Majority of German Companies See Same Productivity from Working in the Office or from Home
Most German companies expect productivity to remain the same should their employees return from hybrid working to working solely in the office: 60.1% believe that employee productivity will remain the...
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Mathias Dolls @mathiasdolls.bsky.social · 06/10/2023
Anlässlich der Aussage von Trigema-Chef Wolfgang Grupp, wer von zu Hause arbeiten könne sei unwichtig, habe ich mit NTV / RTL aktuell über das Thema Homeoffice gesprochen (mein Statement ab 1:10): www.n-tv.de/mediathek/vi...
n-tv.de
Trigema-Chef ätzt gegen Homeoffice: Grupp: "Wer zu Hause arbeiten kann, ist unwichtig"
Als Maßnahme in der Corona-Pandemie ist es geblieben und für viele Arbeitnehmende gar nicht mehr wegzudenken: das Homeoffice. Nun schaltet sich Textilunternehmer und Trigema-Chef Wolfgang Grupp in d...
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Mathias Dolls @mathiasdolls.bsky.social · 05/10/2023
#econsky - the sky is blue:-)!
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Mathias Dolls @mathiasdolls.bsky.social · 05/10/2023
Fantastic interdisciplinary collaboration with Hannes Taubenböck and Matthias Weigand from the German Aerospace Center. I learnt a lot! Special thanks also to the rest of the team (Julia Bachtrögler-Unger, Carla Krolage, and Paul Schüle)!
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Mathias Dolls @mathiasdolls.bsky.social · 05/10/2023
Happy to share that our paper 'EU cohesion policy on the ground: Analyzing small-scale effects using satellite data' is accepted at Regional Science and Urban Economics: www.sciencedirect.com/science/arti...
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