J. Doyne Farmer
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doynefarmer.bsky.social
J. Doyne Farmer
@doynefarmer.bsky.social
5.3K followers 56 following 110 posts

Director of Complexity Economics at INET Oxford; Baillie Gifford Professor of Complex Systems Science at the Smith School of Enterprise and the Environment, University of Oxford; external faculty at the Santa Fe Institute; Chief Scientist, Macrocosm .. more

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J. Doyne Farmer is an American complex systems scientist and entrepreneur with interests in chaos theory, complexity and econophysics. He is Baillie Gifford Professor of Complex Systems Science at the Smith School of Enterprise and the Environment, Oxford University, where he is also director of the Complexity Economics programme at the Institute for New Economic Thinking at the Oxford Martin School. Additionally, he is an external professor at the Santa Fe Institute. His current research is on complexity economics, focusing on systemic risk in financial markets and technological progress. .. more

Economics 70%
Physics 12%
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Reposted by J. Doyne Farmer

inet-complexity.bsky.social
INET Complexity Economics @inet-complexity.bsky.social · 3d
We too are very excited about Karolina Bassa's new paper with Rama Cont on Dynamics of sovereign debt: credit risk and sustainability analysis
www.inet.ox.ac.uk/publications...

Reposted by J. Doyne Farmer

inet-complexity.bsky.social
INET Complexity Economics @inet-complexity.bsky.social · 4d
In our next #ComplexityEconomics seminar on 12 Nov, Rafael Prieto-Curiel @csh.ac.at will explore the challenges of making cities work for everyone while facing dual challenges of managing both expansion and contraction at a time of rapid future population expansion
www.inet.ox.ac.uk/events/citie...
Cities for everyone
In this talk, Rafael Prieto-Curiel will explore the challenges of making cities work for everyone. Previously, Rafael worked on urban dynamics as part of…
www.inet.ox.ac.uk

Reposted by Christoph Bertram, Gary Polhill

doynefarmer.bsky.social
J. Doyne Farmer @doynefarmer.bsky.social · 7d
We're looking for a postdoc for our new project on forecasting technological change - more details below
inetoxford.bsky.social Institute for New Economic Thinking, Oxford @inetoxford.bsky.social · 7d
JOB OPPORTUNITY: Post Doctoral Research Associate in the Economics of Technological Change (2yr) ➵ https://www.inet.ox.ac.uk/vacancies
Join the @oxmartinschool.bsky.social Prog. on Forecasting Technological Change, led by @francoislafond.bsky.social , @doynefarmer.bsky.social & @maxroser.bsky.social

Reposted by J. Doyne Farmer

inetoxford.bsky.social
Institute for New Economic Thinking, Oxford @inetoxford.bsky.social · 7d
JOB OPPORTUNITY: Post Doctoral Research Associate in the Economics of Technological Change (2yr) ➵ https://www.inet.ox.ac.uk/vacancies
Join the @oxmartinschool.bsky.social Prog. on Forecasting Technological Change, led by @francoislafond.bsky.social , @doynefarmer.bsky.social & @maxroser.bsky.social

Reposted by J. Doyne Farmer

sfiscience.bsky.social
Santa Fe Institute @sfiscience.bsky.social · 13d
What if one model could realistically predict the economy of an entire country? The entire world? A month-long working group, co-organized by SFI External Professor @doynefarmer.bsky.social, made the case that agent-based models may bring this vision to life:
Agent-based models move into the economic mainstream
In the 1980s and ’90s, SFI played laboratory to a promising new method known as agent-based modeling. In ensuing decades, agent-based models (ABMs) proliferated across many fields, including economics...
www.santafe.edu

Reposted by J. Doyne Farmer

rmbailey.bsky.social
Richard M. Bailey @rmbailey.bsky.social · 21d
How to improve LLM responses in domains we can’t score? Implicit signals from structured dialogue help LLM agents edit their own contexts, improving responses dramatically.

“Self-evolving expertise in complex non-verifiable subject domains: dialogue as implicit meta-RL”.

arxiv.org/pdf/2510.15772
arxiv.org

Reposted by J. Doyne Farmer

inet-complexity.bsky.social
INET Complexity Economics @inet-complexity.bsky.social · 26d
Our #Complexity Economics Seminar series is back! We start next Wednesday 22 October with a talk from Cambridge University's @martagrzeskiewicz.bsky.social presenting an algorithm for uncovering a utility function based on observational consumption data.
www.inet.ox.ac.uk/events/uncov...
Uncovering utility functions from observational data
The algorithm, Preference Extraction and Reward Learning (PEARL) is able to uncover a representation of the utility function that best rationalises…
www.inet.ox.ac.uk

doynefarmer.bsky.social
J. Doyne Farmer @doynefarmer.bsky.social · 28d
I have a new paper out in @oxrepjournal.bsky.social explaining Agent-based models #ABMs and their advantages and disadvantages in comparison to standard models.

doi.org/10.1093/oxre...
Quantitative agent-based models: a promising alternative for macroeconomics
Abstract. Agent-based models (ABMs) are dynamic computer simulations that abandon utility maximization and instead assume that agents are boundedly rationa
doi.org

Reposted by J. Doyne Farmer

profpaulbehrens.bsky.social
Paul Behrens @profpaulbehrens.bsky.social · Oct 8
Come work with us! We’re hiring a Postdoctoral Research Fellow in Food System Transformations at the University of Oxford.

This role is part of an ambitious, interdisciplinary project exploring rapid food system transformations. More details here: my.corehr.com/pls/uoxrecru...
Job Details
my.corehr.com

doynefarmer.bsky.social
J. Doyne Farmer @doynefarmer.bsky.social · Oct 6
This was great fun!
asmaahsankhan.bsky.social A.A.K Art @asmaahsankhan.bsky.social · Oct 3
An excerpt from today of dialoguing and drawing with @doynefarmer.bsky.social with ILM Collective.
It was an honour to talk to an elder in science about time, chaos, entropy, emergence, climate change, hope, purpose and AI.
#hope #art #science #ilmcollective #drawing #montreal #asmaahsankhan

Reposted by J. Doyne Farmer, Gianmarco De Francisci Morales

blas-ko.bsky.social
Blas Kolic @blas-ko.bsky.social · Oct 6
🚨 Fresh from ArXiv:
“Comparing Data Assimilation and Likelihood-Based Inference on Latent State Estimation in Agent-Based Models”
with @marcopangallo.bsky.social, @c0rrad0.bsky.social, & @gdfm.bsky.social
👉 arxiv.org/abs/2509.17625

Reposted by J. Doyne Farmer

asmaahsankhan.bsky.social
A.A.K Art @asmaahsankhan.bsky.social · Oct 3
An excerpt from today of dialoguing and drawing with @doynefarmer.bsky.social with ILM Collective.
It was an honour to talk to an elder in science about time, chaos, entropy, emergence, climate change, hope, purpose and AI.
#hope #art #science #ilmcollective #drawing #montreal #asmaahsankhan

Reposted by J. Doyne Farmer

inet-complexity.bsky.social
INET Complexity Economics @inet-complexity.bsky.social · Sep 29
Coming up on 1 October @wifo.bsky.social: Karolina Bassa will present on the impact of fiscal and public investment policies on the sovereign's borrowing cost and credit risk in the presence of stochastic output shocks and credit-sensitive funding from investors👇
www.wifo.ac.at/en/event/433...
A Quantitative Model of Sovereign Credit Risk and Debt Sustainability
www.wifo.ac.at

Reposted by J. Doyne Farmer

inet-complexity.bsky.social
INET Complexity Economics @inet-complexity.bsky.social · Sep 25
@doynefarmer.bsky.social spoke to Gregory McNiff at the New Books Network about his research and Making Sense of Chaos.

You can listen at newbooksnetwork.com/making-sense...

#Complexity #ComplexityEconomics
J. Doyne Farmer, "Making Sense of Chaos" (Yale UP, 2024) - New Books Network
newbooksnetwork.com

doynefarmer.bsky.social
J. Doyne Farmer @doynefarmer.bsky.social · Sep 25
I am at New York climate week, and at a reception put on by @ember-energy.org, who does great work in promoting the green transition. I had the pleasure of riding in an all electric boat built by Flux Marine - it moved silently through the water to the Statue of Liberty and back at an amazing speed!

Reposted by J. Doyne Farmer

inetoxford.bsky.social
Institute for New Economic Thinking, Oxford @inetoxford.bsky.social · Sep 3
Additional role for for @ericbeinhocker.bsky.social  announced

Eric has been appointed to the Science Board of @sfiscience.bsky.social as its Chair

The role advises on scientific strategy for the Institute.

https://www.inet.ox.ac.uk/news/eric-beinhocker-to-chair-santa-fe-institute-science-board

doynefarmer.bsky.social
J. Doyne Farmer @doynefarmer.bsky.social · Aug 29
My summer at @sfiscience.bsky.social is coming to an end. Along with the people, I will miss the views and hiking in the hills. Watching the moonrise from Castle Rock is something to be recommended.

See you again next year!

Reposted by J. Doyne Farmer

smithschool.ox.ac.uk
OxfordSmithSchool @smithschool.ox.ac.uk · Aug 29
New guide for #climate & #finance ministries on the most effective ways to model Net-Zero Transition was just published in the Oxford Review of Economic Policy @oxfordunipress.bsky.social @cameronhepburn.bsky.social @doynefarmer.bsky.social @inetoxford.bsky.social
academic.oup.com/oxrep/advanc...
Economic models and frameworks to guide climate policy
Abstract. Reaching net-zero emissions will involve a structural transformation of the global economy. The transition is complicated by deep uncertainty abo
academic.oup.com

Reposted by J. Doyne Farmer

inetoxford.bsky.social
Institute for New Economic Thinking, Oxford @inetoxford.bsky.social · Aug 29
▶New guide to modelling the net zero transition is published;
▶Gives clarity to a plethora of available modelling options becoming increasingly relevant

Led by @cameronhepburn.bsky.social

www.inet.ox.ac.uk/news/most-ef...
Most Effective Models To Guide The Net-Zero Transition
A new guide for climate and finance ministries on the most effective ways to model the Net-Zero Transition has been published in the Oxford Review of…
www.inet.ox.ac.uk

Reposted by J. Doyne Farmer

inet-complexity.bsky.social
INET Complexity Economics @inet-complexity.bsky.social · Aug 29
Interested in climate change and the UK #CarbonBudget? Watch this space! @doynefarmer.bsky.social is heading up our latest project to fill evidence gaps ahead of the UK Government setting its Seventh Carbon Budget next year
www.inet.ox.ac.uk/news/sprint-...
Sprint to Seventh Carbon Budget Commences
A project to fill macroeconomic and distributional analysis evidence gaps has started at INET Oxford this summer.
www.inet.ox.ac.uk

doynefarmer.bsky.social
J. Doyne Farmer @doynefarmer.bsky.social · Aug 28
Glad to hear you guys are finding my book useful. You can find all my papers on my website, doynefarmer.com. This includes the paper mentioned coupling an epidemiological ABM to an economic ABM with Marco Pangallo as first author. Thanks for your interest.
doynefarmer.com

doynefarmer.bsky.social
J. Doyne Farmer @doynefarmer.bsky.social · Aug 19
We're in the third of four weeks of our Economic Agent-Based Models: Crossing Over the Tipping Point workshops at @sfiscience.bsky.social. Thanks @j0mrn.bsky.social and Christian Diem for helping to organize. We've had so many great speakers already!

doynefarmer.bsky.social
J. Doyne Farmer @doynefarmer.bsky.social · Aug 13
I will be giving the New Zealand Treasury Fiscal Policy for the Future seminar - you can find more information at www.eventbrite.co.nz/e/tgls-fisca...
TGLS: Fiscal Policy for the Future seminar - Professor Doyne Farmer
Making Sense of Chaos: A Better Economics for a Better World
www.eventbrite.co.nz

doynefarmer.bsky.social
J. Doyne Farmer @doynefarmer.bsky.social · Jul 31
My latest paper with @cameronhepburn.bsky.social and @bapeterj.bsky.social among others is now available in @oxrepjournal.bsky.social

Reposted by J. Doyne Farmer

inet-complexity.bsky.social
INET Complexity Economics @inet-complexity.bsky.social · Jul 31
New in @oxrepjournal.bsky.social: Economic models and frameworks to guide climate policy. Which key economic questions about the net-zero transition are of interest to finance ministries and which economic methods can deliver.

academic.oup.com/oxrep/advanc...
Economic models and frameworks to guide climate policy
Abstract. Reaching net-zero emissions will involve a structural transformation of the global economy. The transition is complicated by deep uncertainty abo
academic.oup.com

Reposted by J. Doyne Farmer

inet-complexity.bsky.social
INET Complexity Economics @inet-complexity.bsky.social · Oct 2
Congratulations to Cephas Svosve for winning the 2024 #ÄänitPrize Audience Choice Award for his EcoWealth start up.

www.mandelarhodes.org/news-impact/...
2024 Äänit Prize finalists announced
We find, fund, and empower young Africans who aspire towards the kind of leadership Mr Mandela embodied.
www.mandelarhodes.org

Reposted by J. Doyne Farmer

inet-complexity.bsky.social
INET Complexity Economics @inet-complexity.bsky.social · Oct 3
We are pleased to announce our fantastic line up for the next term's #Complexity Economics seminar series. We're starting with Jean-Francois Mercure on 23 October and Evidence of a cascading positive tipping point towards electric vehicles
www.inet.ox.ac.uk/events/evide...
Evidence of a cascading positive tipping point towards electric…
Here we provide evidence that this tipping point likely lies within the next few years in lead markets of the EU and China, and potentially the US, which…
www.inet.ox.ac.uk

Reposted by J. Doyne Farmer

seanmcarroll.bsky.social
Sean Carroll @seanmcarroll.bsky.social · Oct 21
Mindscape 293 | Doyne Farmer @doynefarmer.bsky.social on Chaos, Crashes, and Economic Complexity. #MindscapePodcast

www.preposterousuniverse.com/podcast/2024...
293 | Doyne Farmer on Chaos, Crashes, and Economic Complexity – Sean Carroll
www.preposterousuniverse.com

Reposted by J. Doyne Farmer

inet-complexity.bsky.social
INET Complexity Economics @inet-complexity.bsky.social · Nov 4
Congratulations to @joelnmdyer.bsky.social for winning best paper at the 40th Conference on Uncertainty in Artificial Intelligence, for his work on approximate Bayesian inference methods for simulation models.
www.inet.ox.ac.uk/news/researc...
Researcher wins best paper award for work on approximate Bayesian…
It seeks to aid widespread adoption of simulators in real-world modelling and decision-making scenarios, by making approximate Bayesian inference more…
www.inet.ox.ac.uk

Reposted by J. Doyne Farmer

bapeterj.bsky.social
Pete Barbrook-Johnson @bapeterj.bsky.social · Nov 15
It’s our annual @inet-complexity.bsky.social away day!
Usual great turn out…looking forward to lots of complexity economics and green transition discussion (and the quiz)!!

Read about our work here - www.inet.ox.ac.uk/research/pro...