Ola Olsson's Avatar

Ola Olsson

@oolsson.bsky.social

Professor of Economics and HoD at University of Gothenburg Economic growth, development economics and economic history. Author of "Paleoeconomics: Climate Change and Economic Development in Prehistory” https://sites.google.com/site/econolaols/home

609 Followers  |  359 Following  |  63 Posts  |  Joined: 14.11.2024  |  1.4877

Latest posts by oolsson.bsky.social on Bluesky

Historical 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.

22.01.2026 10:45 — 👍 0    🔁 0    💬 0    📌 0

Using 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

22.01.2026 10:45 — 👍 0    🔁 0    💬 1    📌 0

These “behavioral immune system” responses lie dormant in normal times — but they are activated during crises with fundamental uncertainty.

22.01.2026 10:45 — 👍 0    🔁 0    💬 1    📌 0

The 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

22.01.2026 10:45 — 👍 1    🔁 0    💬 1    📌 0

Countries 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.

22.01.2026 10:45 — 👍 0    🔁 0    💬 1    📌 0
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Why 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...

22.01.2026 10:45 — 👍 2    🔁 0    💬 1    📌 0

It 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!

22.11.2025 19:22 — 👍 0    🔁 0    💬 0    📌 0

We are very excited about the new research opportunities that this VR funding opens up for the department.

27.10.2025 09:46 — 👍 3    🔁 1    💬 0    📌 0
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Upptäckter av drivkrafter för ekonomisk tillväxt prisas Aldrig 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...

Kul 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...

13.10.2025 15:04 — 👍 0    🔁 0    💬 0    📌 0
Paleoekonomi - Nationalekonomiska Föreningen Recension av Ola Olsson: Paleoeconomics, Palgrave Macmillan, 2024, 351 sidor, ISBN 978-3-031-52783-8.

Väldigt glad för denna fina recension av min bok Paleoeconomics i @ekonomiskdebatt.bsky.social !

www.nationalekonomi.se/artikel/pale...

29.09.2025 07:12 — 👍 2    🔁 0    💬 0    📌 0
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Opinion | The America We Knew Is Rapidly Slipping Away

Will 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...

05.08.2025 06:06 — 👍 2    🔁 0    💬 0    📌 0
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Just 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!

30.07.2025 10:30 — 👍 7    🔁 0    💬 0    📌 0
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Professor 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...

Jag 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:/...

28.07.2025 09:54 — 👍 3    🔁 1    💬 0    📌 0
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🌍 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 ...

I 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...

13.07.2025 21:35 — 👍 1    🔁 1    💬 0    📌 0

EU 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.

12.07.2025 14:06 — 👍 2    🔁 0    💬 0    📌 0

Kommenterar senatens behandling av Trumps budget Dagens ETC.

02.07.2025 11:00 — 👍 0    🔁 0    💬 0    📌 0

Congratulations to @rhelensdotter.bsky.social !

01.07.2025 08:17 — 👍 7    🔁 2    💬 0    📌 0
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Akademisk kris i USA – Sverige måste agera nu Den 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...

efn.se/usas-akademi...

14.06.2025 13:24 — 👍 0    🔁 0    💬 0    📌 0

Several 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.

12.06.2025 09:25 — 👍 2    🔁 1    💬 0    📌 0
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3 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.

There 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...

11.06.2025 07:02 — 👍 0    🔁 0    💬 0    📌 0
University of Chicago Press Journals: Cookie absent

Our 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/10.1086/734781

01.06.2025 13:49 — 👍 3    🔁 2    💬 0    📌 0

An illustration of how the Trump administration’s counterproductive tariffs hurt even the manufacturing of Swedish cars in the US.

30.05.2025 19:48 — 👍 1    🔁 0    💬 0    📌 0

Our 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.

30.05.2025 10:44 — 👍 1    🔁 0    💬 0    📌 0
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Effective 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.

30.05.2025 10:44 — 👍 0    🔁 0    💬 1    📌 0
Floods, droughts, and environmental circumscription in early state development: the case of ancient Egypt

My 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/eoDL5

30.05.2025 10:44 — 👍 9    🔁 1    💬 1    📌 0
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Claudia Goldin: Why Women Won Join 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.

We 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...

27.05.2025 20:14 — 👍 2    🔁 1    💬 0    📌 0

Very good!!

27.04.2025 19:16 — 👍 1    🔁 0    💬 0    📌 0

Such an incredibly well deserved PL title!!!

27.04.2025 17:49 — 👍 0    🔁 0    💬 0    📌 0
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The thing about Europe: it’s the actual land of the free now Europe’s very real problems don’t look so bad by comparison

So true. But it also comes with a responsibility to be better at defending our freedom.
economist.com/europe/2025/...

18.04.2025 10:58 — 👍 0    🔁 0    💬 0    📌 0
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Trump’s Threats Force Powerful Institutions to Choose: Cut a Deal or Resist In a hint of a shift in strategy, some of the country’s most powerful institutions have started choosing to resist.

Good to see that Harvard takes the lead in this important fight for academic freedom.
www.nytimes.com/2025/04/16/u...

17.04.2025 12:14 — 👍 1    🔁 0    💬 0    📌 0

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