Ola Olsson @oolsson.bsky.social · 22/01/2026Historical legacies do matter — but not all the time. Their influence is conditional, showing up when scientific guidance is limited and policymakers fall back on ingrained intuitions. This has implications far beyond pandemics — for crisis policy, risk governance, and cultural persistence. 000
Ola Olsson @oolsson.bsky.social · 22/01/2026Using weekly data (2020–2022) for: 182 countries worldwide and all US states, our study finds that: - High‑exposure regions reacted more strongly to new COVID deaths in 2020 - The pattern holds within the United States - The effect fades in 2021–2022, when knowledge and vaccines reduced uncertainty 100
Ola Olsson @oolsson.bsky.social · 22/01/2026These “behavioral immune system” responses lie dormant in normal times — but they are activated during crises with fundamental uncertainty. 100
Ola Olsson @oolsson.bsky.social · 22/01/2026The study shows that long‑run disease environments shape: - intuitive reactions to health threats - collective anxiety and support for protective measures - governments’ willingness to impose strict containment policies 110
Ola Olsson @oolsson.bsky.social · 22/01/2026Countries and US states with higher historical disease exposure responded more strongly to rising COVID deaths, especially in 2020, when: - the virus was new - models were unreliable - vaccines did not yet exist Once vaccines arrived and uncertainty declined, this historical effect disappeared. 100
Ola Olsson @oolsson.bsky.social · 22/01/2026Why did COVID policies differ so much across countries? In this article with @econannika.bsky.social, recently published in J Comp Econ, we find that deep historical exposure to infectious disease shaped how governments reacted to COVID‑19, but only during 2020. authors.elsevier.com/a/1mTcY_3Mo1...authors.elsevier.comPlease wait whilst we redirect youAll content on this site: Copyright © 2026 Elsevier B.V., its licensors, and contributors. All rights are reserved, including those for text and data mining, AI training, and similar technologies. For all open access content, the relevant licensing terms apply. 120
Ola Olsson @oolsson.bsky.social · 22/11/2025It was a great pleasure to host and listen to so many great presenters at this year’s ASWEDE outside Gothenburg. Already looking forward to next year in Stockholm! 000
Ola Olsson @oolsson.bsky.social · 27/10/2025We are very excited about the new research opportunities that this VR funding opens up for the department. 031
Ola Olsson @oolsson.bsky.social · 13/10/2025Kul att långsiktig ekonomisk tillväxt blir föremål för ännu ett Nobelpris! I artikeln nedan kommenterar mina kollegor och jag pristagarnas bidrag. www.gu.se/nyheter/uppt...gu.seUpptäckter av drivkrafter för ekonomisk tillväxt prisasAldrig tidigare har människan upplevt en så lång period av ihållande ekonomisk tillväxt som under de senaste tvåhundra åren. Årets ekonomipristagare Joel Mokyr, Philippe Aghion och Peter Howitt har ge... 000
Ola Olsson @oolsson.bsky.social · 29/09/2025Väldigt glad för denna fina recension av min bok Paleoeconomics i @ekonomiskdebatt.bsky.social ! www.nationalekonomi.se/artikel/pale...nationalekonomi.sePaleoekonomi - Nationalekonomiska FöreningenRecension av Ola Olsson: Paleoeconomics, Palgrave Macmillan, 2024, 351 sidor, ISBN 978-3-031-52783-8. 020
Ola Olsson @oolsson.bsky.social · 05/08/2025Will we be able to trust key economic data from the US again? The America We Knew Is Rapidly Slipping Away www.nytimes.com/2025/08/04/o...nytimes.comOpinion | The America We Knew Is Rapidly Slipping Away 020
Ola Olsson @oolsson.bsky.social · 30/07/2025Just presented my paper on weather shocks and monument construction during the Classic Maya period at the WEHC in Lund. Happy for the great lineup of very interesting papers and presenters and for the turnout. Also thrilled to find my book in the book exhibition! 070
Ola Olsson @oolsson.bsky.social · 28/07/2025Jag kommenterar handelsavtalet mellan EU-USA i dagens Di. Jag tycker att EU vek ned sig alldeles för lätt. Inget hindrar Trump från att kräva ännu mer senare. Att ensidigt acceptera 15% tullar är orimligt. dise.page.link?link=https:/...dise.page.linkProfessor kritisk: EU borde ha trappat upp – ”har mer muskler”EU-kommissionens ordförande Ursula von der Leyen borde ha satt hårt mot hårt i förhandlingarna med USA:s president Donald Trump. Det är mycket som står på spel – en hel världsordning – varnar Ola Olss... 031
Ola Olsson @oolsson.bsky.social · 13/07/2025I was interviewed a short time ago in Javier’s excellent EPH Podcast about my book Paleoeconomics. I hope you enjoy listening to it. www.linkedin.com/posts/javier...linkedin.com🌍 New season of the EPH Podcast! | Javier Mejia Cubillos🌍 New season of the EPH Podcast! In this episode, I talk with Ola Olsson about the economics of the Paleolithic and Neolithic. How did a small species of hominids conquer the world? What challenges ... 011
Ola Olsson @oolsson.bsky.social · 12/07/2025EU should of course respond with tariffs in line with the measures agreed on in April. Time to take a break from the flattery that EU leaders have tried in different fora and show resolve. 020
Ola Olsson @oolsson.bsky.social · 02/07/2025Kommenterar senatens behandling av Trumps budget Dagens ETC. 000
Reposted by Ola OlssonDepartment of Economics, University of Gothenburg @gothenburg-econ.bsky.social · 01/07/2025Congratulations to @rhelensdotter.bsky.social ! 072
Ola Olsson @oolsson.bsky.social · 14/06/2025efn.se/usas-akademi...efn.seAkademisk kris i USA – Sverige måste agera nuDen akademiska friheten är under press i USA. Det öppnar upp för svenska universitet att rekrytera forskare och öka vår internationella status som forskarnation. Handelshögskolans rektor varnar: ”De a... 000
Reposted by Ola OlssonDepartment of Economics, University of Gothenburg @gothenburg-econ.bsky.social · 12/06/2025Several members of faculty in the development group @gothenburg-econ.bsky.social have taken part in this nice collaboration as supervisors. We thank our Ethiopian friends for their visit and hope for fruitful research interaction in the future. 021
Ola Olsson @oolsson.bsky.social · 11/06/2025There are of course numerous lessons from recent history about what Trump’s handling of the unrest in LA might lead to. The most worrying is probably ”Crackdowns can be steppingstones to wider power grabs.” www.nytimes.com/2025/06/10/w...nytimes.com3 Lessons From International Protests Amid Unrest in L.A.Experts who study protest movements say the scenes unfolding in California broadly follow a script that has played out many times in other countries — sometimes with deadly consequences. 000
Reposted by Ola OlssonDepartment of Economics, University of Gothenburg @gothenburg-econ.bsky.social · 01/06/2025Our frequent guest and affiliated colleague Martin Berg Karlsson @drdemant.bsky.social has co-authored a paper on German health insurance that is forthcoming in @jpolecon.bsky.social. Congratulations! doi.org/10.1086/734781doi.orgUniversity of Chicago Press Journals: Cookie absent 032
Ola Olsson @oolsson.bsky.social · 30/05/2025An illustration of how the Trump administration’s counterproductive tariffs hurt even the manufacturing of Swedish cars in the US. 010
Ola Olsson @oolsson.bsky.social · 30/05/2025Our results show that while extreme Nile floods result in a greater degree of political instability (ruler and dynastic tenure durations), periods with a greater rainfall in the hinterland cause a decline in state capacity and a delayed increase in political instability. 010
Ola Olsson @oolsson.bsky.social · 30/05/2025Effective enviromental circumscription was created through an interplay between Nile floods (proxied by rainfall over Highland Ethiopia) and Mediterranean rains that determined the productivity of the hinterland. 100
Ola Olsson @oolsson.bsky.social · 30/05/2025My paper with Laura Mayoral on the political impact of floods and droughts in Ancient Egypt, is now assigned to an issue of JEconGrowth. We provide evidence of a "dynamic circumscription model" where Egypt was sometimes like a "social cage" where rulers could easily dominate. rdcu.be/eoDL5rdcu.beFloods, droughts, and environmental circumscription in early state development: the case of ancient Egypt 191
Reposted by Ola OlssonDepartment of Economics, University of Gothenburg @gothenburg-econ.bsky.social · 27/05/2025We were very happy to host Nobel laureate Claudia Goldin today during seminars and an important keynote lecture. Thanks to all 700 participants irl and online for attending! www.gu.se/en/event/cla...gu.seClaudia Goldin: Why Women WonJoin the 2025 edition of the Tore Browaldh Lecture, where Nobel Laureate and Harvard Professor Claudia Goldin talks about women's societal and economical changes and impact. 021
Ola Olsson @oolsson.bsky.social · 18/04/2025So true. But it also comes with a responsibility to be better at defending our freedom. economist.com/europe/2025/...economist.comThe thing about Europe: it’s the actual land of the free nowEurope’s very real problems don’t look so bad by comparison 000
Ola Olsson @oolsson.bsky.social · 17/04/2025Good to see that Harvard takes the lead in this important fight for academic freedom. www.nytimes.com/2025/04/16/u...nytimes.comTrump’s Threats Force Powerful Institutions to Choose: Cut a Deal or ResistIn a hint of a shift in strategy, some of the country’s most powerful institutions have started choosing to resist. 010
Ola Olsson @oolsson.bsky.social · 13/04/2025Yet another interview with me on the political economy of Trump’s tariff circus (in Swedish). www.dn.se/ekonomi/expe...dn.seExpert: ”Trump lär ha en mycket svagare förhandlingsposition”USA har undantagit elektronik från de höjda tullarna. Därmed slipper en knapp fjärdedel av Kinas export till USA de amerikanska 125- 000
Ola Olsson @oolsson.bsky.social · 08/04/2025Interview about the crisis in Affärsvärlden (in Swedish). www.affarsvarlden.se/artikel/ekon...affarsvarlden.seEkonomiprofessorn: ”En självförvållad Trump-kris som är helt vansinnig” | AffärsvärldenFörtroendet för USA är skadat och att göra affärer med landet kommer att vara för riskabelt. Det hävdar ekonomiprofessorn Ola Olsson. ”Det kommer att bli svårt att lita på regimen”, säger han till Affärsvärlden. 020
Ola Olsson @oolsson.bsky.social · 08/04/2025In particular, why did so many seemingly well-informed finance guys delude themselves to this extent? www.nytimes.com/2025/04/07/o...nytimes.comOpinion | Why Did Wall Street Get Trump So Wrong?Wall Street mistook demagogy for wisdom. 041
Reposted by Ola OlssonJustin Wolfers @justinwolfers.bsky.social · 05/04/2025This is remarkably close to what we had six days ago. The average tariff rate of most European nations was about 1%. 451025231
Reposted by Ola OlssonDani Rodrik @drodrik.bsky.social · 26/03/2025This is absolutely horrifying. Turkish graduate at Tufts student is picked up and removed to undisclosed destination by ICE, apparently because she wrote a pro-Palestinian oped. 810041
Reposted by Ola OlssonCarl T. Bergstrom @carlbergstrom.com · 19/03/20251. For the past thirty years I've had the best job in the world. I've had the opportunity to follow my curiosity; explore the workings of nature and society; mentor students and junior colleagues in the same process; and teach generations of students about it all. 382585927
Ola Olsson @oolsson.bsky.social · 20/03/2025European universities will probably very soon need to deal with many US-based researchers who want to relocate to Europe. If handled efficiently, a great opportunity for EU research. www.politico.eu/article/euro...politico.euEurope looks to poach US researchers as Trump cuts fundingTwelve EU capitals want programs to bring over American scholars. 031
Ola Olsson @oolsson.bsky.social · 10/03/2025Can’t say that I am very sad about this development. A well-deserved own goal and surely not the last one. www.nytimes.com/2025/03/10/b...nytimes.comTesla Shares Plunge as Elon Musk’s Political Role Grows More DivisiveThe automaker’s shares soared after Election Day as Elon Musk took a high-profile role as a Trump adviser. Now those gains have evaporated. 000
Reposted by Ola OlssonAnne Applebaum @anneapplebaum.wsocial.eu · 06/03/2025"Washington has become the court of Nero, an incendiary emperor, submissive courtiers, and a jester high on ketamine in charge of purging the civil service. This is a tragedy for the free world, but it is first and foremost a tragedy for the United States." 10138801051
Ola Olsson @oolsson.bsky.social · 04/03/2025In this OA book chapter, Pelle and I critically discuss the SDG target 8.1 that the poorest countries should reach at least a 7% growth rate in GDP per capita. After two decades of rapid convergence 2000-2019, there are major challenges ahead. www.taylorfrancis.com/chapters/oa-...taylorfrancis.comSustainable economic growth | 3 | A critical assessment of Target 8.1In this chapter, we focus on Target 8.1, stipulating that countries should pursue real Gross Domestic Product (GDP) per capita growth rates that are in 010
Reposted by Ola OlssonHoodlum 🇺🇸 @nothoodlum.bsky.social · 03/03/2025A brilliant Banksy. 501386609888
Ola Olsson @oolsson.bsky.social · 28/02/2025Oh yes. And what a shameful day for the country that used to be the leader of the free world. 120
Reposted by Ola OlssonDaron Acemoglu @dacemoglumit.bsky.social · 24/02/2025If, as I hope, the US democracy survives and (somehow) recovers, then history books will judge those working with Trump and Republican lawmakers in the Senate and Congress enabling him harshly (and so should we). If US democracy does not survive, I don’t know what history books will be like. 514619
Reposted by Ola OlssonEFN Ekonomikanalen @efntv.bsky.social · 21/02/2025Det är dags för val i Tyskland och drömsituationen för Sverige är ett valresultat som ger en stark regering som kan föra EU:s talan på ett effektivt sätt gentemot USA. Samtidigt behöver Tyskland stärka landets eget försvar. Det säger @oolsson.bsky.social till EFN. efn.se/play/starkt-...efn.se”Starkt Tyskland en nödvändighet” 091
Ola Olsson @oolsson.bsky.social · 19/02/2025It was really fun to feature in this episode of the very nice pod ”Our long walk” run by @johanfourieza.bsky.social. Among other research topics, we talk about my recent book Paleoeconomics. Thanks for the opportunity! 020
Ola Olsson @oolsson.bsky.social · 14/02/2025EU and UK must stay focused on defending Ukraine and liberal democracy and not be distracted by the representatives of this idiot regime in the US. www.theguardian.com/us-news/2025...theguardian.comJD Vance stuns Munich conference with blistering attack on Europe’s leadersUS vice-president questions whether European values are worth defending as he rails against ‘threat from within’ 010
Reposted by Ola OlssonChris Stringer @chrisbstringer.bsky.social · 08/02/2025In a 1st, ancient proteins reveal sex of human relative from 3.5 million years ago www.livescience.com/archaeology/...livescience.comIn a 1st, ancient proteins reveal sex of human relative from 3.5 million years agoResearchers have extracted ancient proteins from australopithecine fossils and determined whether they were male or female — a first for human evolution studies. 0639
Ola Olsson @oolsson.bsky.social · 06/02/2025Det andra avsnittet i Vetenskapsradion om den fascinerande stenålderskulturen i sydöstra Turkiet för 12000 år sedan. Jag intervjuas i slutet om övergången till jordbrukssamhällen. sverigesradio.se/play/avsnitt...sverigesradio.seCivilisationens nollpunkt grävs ut - Vetenskapsradion HistoriaI närheten av ikoniska Göbekli Tepe har nu tjugotalet liknande platser börjat grävas ut. Tobias Svanelid besöker några av platserna som tillsammans målar ... 010
Ola Olsson @oolsson.bsky.social · 27/01/2025Thanks I did enjoy seeing Ötzi a lot, as well as the workshop! Well done organizing👌 000