iiinova — where your digital self keeps evolving

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 07/08/2026

Pure #SequentialSampling clusters where it shouldn't, and requires endless simulation runs. A new #ABM study shows that #MixedAdaptiveSampling can fix this, reducing costs while enhancing output interpretation. Read the full #OpenAccess article in #JASSS: jasss.org/29/3/6.html

000

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 05/08/2026

Calibrating complex agent-based models shouldn't mean settling for a single "best guess" parameter set. Kejian Li presents a new HPC-ABC-SMC framework that cuts #ABM calibration time by 42x while capturing complete parameter uncertainty. Watch here👉 youtu.be/SQ8hzmVj2gQ

youtu.be

Calibrating a Global Trade Agent-Based Model with an HPC–ABC–SMC Framework

YouTube video by Jasss Journal

020

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 03/08/2026

Single-point estimates are not enough for complex #ABM calibration. A new framework delivers full #BayesianComputation posterior distributions with a 42-fold efficiency gain, applied to a global #FoodTrade model. Read the full #OA article in #JASSS: jasss.org/29/3/5.html

010

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 31/07/2026

The same voting reform can polarize one democracy and moderate another. It comes down to system size. Thomas Mustillo (@keoughglobalnd.bsky.social, @kellogginstitute.bsky.social) breaks down his new #JASSS paper on party competition under costly voting🎥 youtu.be/lWkAIoc_hIE

youtu.be

Party Competition with Costly Voting

YouTube video by Jasss Journal

000

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 27/07/2026

Abstainers live at the extremes, not the centre. A new #ABM shows that voting costs reshape entire #PartySystem dynamics, driving #polarization in small party systems while eroding citizen representation in larger ones Read the full #OA article in #JASSS: jasss.org/29/3/4.html

010

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 20/07/2026

Why is it so hard to stop eating #UltraProcessedFoods? The simple truth is that dieting alone will not do it. A new #ABM study shows that only drastically reducing UPF availability can reverse learned food preferences. Read the full #OA article in #JASSS: jasss.org/29/3/3.html

000

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 13/07/2026

Where does inequality come from, before states, markets, or agriculture? New #ABM reveals how stratification emerges in hunter-gatherer societies, driven by skill, luck, greed, and what a society chooses to reward. Full #OpenAccess article in #JASSS 👉https://www.jasss.org/29/3/2.html

010

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 06/07/2026

System-level interventions can ignite cascades of change. They can also collapse under mis-targeting. New #JASSS paper models the tradeoff and proposes a portfolio approach to scale power without losing the safety net. Read #OpenAccess here: www.jasss.org/29/3/1.html

000

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 01/07/2026

📢 #JASSS Issue 3 (Vol. 29) is out. How does order, inequality, and change emerge from individual decisions? From behavioral policy to ancient societies to global trade — this issue explores it all through agent-based modeling. Read here 👇 www.jasss.org/JASSS.html

000

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 30/06/2026

🔎 Sneak peek from the forthcoming #JASSS issue: #Nudge individuals, or reshape the systems around them? Wrong question. Author shows it's a transformation–robustness tradeoff 👇 www.youtube.com/watch?v=4eY_... #ABM #BehavioralScience #PublicPolicy

youtube.com

S-Frame Vs. I-Frame Interventions: The Transformation-Robustness Trade-off in Behavioural Policy

YouTube video by Jasss Journal

000

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 06/06/2026

Who is most at risk in aged care facilities, and when? A new #ABM study builds institutional #ContactMatrices from staff shifts and care routines, revealing where #InfectiousDisease transmission truly concentrates. Read the full #OA article in #JASSS: jasss.org/29/2/7.html

000

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 22/05/2026

Not all nodes are equal — yet #Network models treat them as if they were. A new study adapts the Configuration Model to embed node attributes into #NetworkStructure, with a tenfold increase in #ClusteringCoefficient. Read the full #OA article in #JASSS: jasss.org/29/2/6.html

000

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 06/05/2026

More realistic #AgentBasedModels are not always better: a new study shows that richer agent #Heterogeneity undermines #ModelCalibration reliability — reopening the KISS vs KIDS debate on new empirical ground. Read the full #OpenAccess article in #JASSS: jasss.org/29/2/5.html

000

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 30/04/2026

No protests in the streets — yet resistance grows. A new #ABM study models how #OnlineProtest dynamics on #SocialMedia quietly accumulate dissent potential among ordinary users even under #AuthoritarianRepression. Read the full #OA article in #JASSS: jasss.org/29/2/4.html

000

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 21/04/2026

Bad news travels fast — but how exactly? A new #ABM study combines #DeepLearning sentiment tracking and an epidemiological model to map how negativity about corporations spreads across Reddit's #FinancialCommunities. Read the full #OA article in #JASSS: jasss.org/29/2/3.html

000

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 15/04/2026

What drives households to adopt rooftop #SolarPV? A new #ABM study reveals that it is not just money —#socialnorms and #opiniondynamics matter more, with surprising insensitivity to #network structure. Read the full #OpenAccess article in #JASSS: jasss.org/29/2/2.html

000

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 08/04/2026

No algorithms, no biased media, no hostile users — yet #polarization still emerges. A new #ABM study extending Axelrod's model shows how rewarding interactions alone fuel a self-reinforcing "rich-get-richer" dynamic. Read the full #OA article in #JASSS: jasss.org/29/2/1.html

000

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 02/04/2026

#JASSS Vol.29 Issue 2 is out! New research explores online polarization, authoritarian repression, solar PV adoption & financial sentiment spread, and more — all through the lens of #AgentBasedModeling. Find out what #ComputationalSocialScience reveals about society 👉 jasss.org

jasss.org

010

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 16/03/2026

Can #socialsolidarity prevent agro-pastoral collapse? Paul Chapron & colleagues co-designed an #ABM with Senegalese farmers to find out. ⚠️Spoiler: remove parcel lending & food sharing, and the system collapses #CompanionModeling #participatory #simulation youtu.be/gucSiwhHqW0

youtu.be

Fallow Land Simulations to Fight Soil Degradation: Engaging Stakeholders with Model Exploration

YouTube video by Jasss Journal

011

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 11/03/2026

Real-world #Policy problems are hard to capture with traditional models, but a #generative approach may change the game. GPLab combines #LLMs and #ABM to advance #computationalsocialscience for public decision support. Read the full #OA article in #JASSS: jasss.org/29/1/6.html

000

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 06/03/2026

How long before #OpioidPolicy actually reduces deaths? OPOSim #ABM simulates #OpioidUse dynamics in #NorthCarolina to test #prevention strategies and reveals how small shifts can change #epidemic trajectories Read the full #OpenAccess article in #JASSS: jasss.org/29/1/5.html

000

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 26/02/2026

Can #AI safeguard a healthy #InfoEcosystem? An #ABM simulation shows that proactive #Bots outperform reactive #FactChecking in mitigating the spread of #ConspiracyTheories on #SocialMedia. Read the full #OpenAccess article in #JASSS: jasss.org/29/1/4.html

000

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 18/02/2026

How do you #model what can’t be measured? This study demonstrates how #ParticipatoryModeling integrates local knowledge and #Calibration to capture hidden social dynamics in complex socio-ecological systems. Read the full #OpenAccess article in #JASSS: www.jasss.org/29/1/3.html

010

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 09/02/2026

Why do non-political issues polarize? This #MultiAgentModel with #NetworkHomophily solves the discrepancy between #Simulation and #Empirical findings, showing that #OilSpillPolarization can emerge even among moderate partisans. Read the full #OpenAccess article in #JASSS: www.jasss.org/29/1/1.html

000

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 03/02/2026

The first #JASSS issue of 2026 has been published! Dive into new #SocialSimulation studies on #PublicPolicy, #Epidemiology, #SoilDegradation, and #OpinionDynamics. Read the full #OpenAccess articles in Vol 29(1) here: www.jasss.org/29/1/content...

jasss.org

JASSS Volume 29, Issue 1. 31-Jan-2026

000

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 27/01/2026

The #JASSS website just got a major upgrade! 🚀 We have launched brand new dedicated sections for Awards, News, and Videos to highlight the main updates and amazing work happening in our community. Come see what’s new! 💻 www.jasss.org/JASSS.html

010

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 09/01/2026

#ABM thrives but fragmented code and reinvented wheels slow progress. We introduce #AGENTBLOCKS, an open #community #platform that shares & improves #ReusableBuildingBlocks to support #Standardization in ABM and beyond. Read the full #OpenAccess article in #JASSS: www.jasss.org/28/4/11.html

000

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 07/01/2026

Structural calibration of ABMs is often overlooked, yet it can dramatically shape model outcomes. We address this by introducing an innovative #InverseModelling #method to #explore & #calibrate #ABM #structures Read the full #OpenAccess article in #JASSS: www.jasss.org/28/4/10.html

000

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 05/01/2026

Who should be traced first? An empirically calibrated #ABM shows that #ContactTracing works best when prioritizing influential spreaders—even if identified only via simple proxies like #Age and #HouseholdSize. Read the full #OpenAccess article in #JASSS: www.jasss.org/28/4/9.html

000

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 22/12/2025

By fitting an #ABM of #schoolchoice to household-level data, this study reveals unexpected #heuristic #behaviors shaping #SchoolSegregation dynamics and offers a novel #estimation #framework for realistic ABMs. Read the full #OpenAccess article in #jasss: jasss.org/28/4/8.html

010

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 16/12/2025

How do #PaymentForPerformance reshape care-seeking? An #ABM of childbirth care in #Tanzania links provider incentives, informal fees, peer learning, and demand pressure, revealing effects of supply-side change. Read the full #OpenAccess article in #jasss: jasss.org/28/4/7.html

000

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 10/12/2025

When #tree loss threatens #soils and #food security in #Senegal, the #SAFIRe #participatory #ABM helps communities explore new pathways for #regeneration and reshape #CommunityBased #ResourceManagement. Read the full #OpenAccess article in #jasss: jasss.org/28/4/6.html

000

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 02/12/2025

Did the #Casarabe Culture truly domesticate the #Amazon? 🌿 New #ABM simulations propose a model of highly localized, intensive #land use driven by environmental 'desirability' & inter-settlement #cooperation. Read the full #OpenAccess article in #jasss: jasss.org/28/4/5.html

000

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 25/11/2025

MIDAO advances #ABM by showing how specific arguments - not just abstract #socialinfluence - drive #opinion formation and #Innovation adoption. A more realistic, theory-driven perspective on #opiniondynamics. Read the full #OpenAccess article in #jasss: jasss.org/28/4/4.html

000

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 17/11/2025

Why do a few players dominate #China’s e-retail #market? An #AgentBasedModel demonstrates how small shifts in #consumer risk-taking, pickiness, and #WoM can alter market power in unexpected ways. Read the full #OpenAccess article in #jasss: jasss.org/28/4/3.html

000

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 11/11/2025

How does deliberation reshape collective judgment? An #AgentBasedModel of the #DoctrinalParadox compares binary voting, belief aggregation, and interaction—revealing when talk helps or deepens contradictions. Read the full #OpenAccess article in #jasss: jasss.org/28/4/2.html

000

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 04/11/2025

Can models learn realistic human behavior, such as #PedestrianDynamics? This new study applies #AdaptiveGeneticProgramming within #InverseGenerativeSocialScience to evolve stochastic rules in #AgentBasedModels. Read the full #OpenAccess article in #jasss: jasss.org/28/4/1.html

020

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 20/10/2025

For his excellent reports, promptness, and dedication, the #JASSS Editorial Board is delighted to name @vittonesp.bsky.social among the Best Top 5 Reviewers of the Year!🎓 We deeply appreciate your commitment to #PeerReview, #OpenScience, and the JASSS community! youtu.be/8l0yGwZUN0s

youtu.be

Best Reviewer Award 2025 - Vittorio Nespeca

YouTube video by Jasss Journal

010

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 13/10/2025

Recognizing her report quality, timeliness, and valuable contribution, the #JASSS Editorial Board proudly names Amineh Ghorbani among the Best Top 5 Reviewers of the Year! 🎓 Thank you for your dedication to #PeerReview, #OpenScience, and our community! youtu.be/mRwBO9eSLB4

youtu.be

Best Reviewer Award 2025 - Amineh Ghorbani

YouTube video by Jasss Journal

000

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 06/10/2025

We are proud to announce the winner of the 2025 Best PhD Student Article Award: Daniel Torren-Peraire, for "An Agent-Based Model of Cultural Change for a Low-Carbon Transition", published in #JASSS, 27(1), 2024, 13 ➡️ jasss.org/27/1/13.html Congrats! 🏆 youtube.com/shorts/lJ-Ge...

youtube.com

Best PhD Student Article 2025

YouTube video by Jasss Journal

010

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 03/09/2025

This study rethinks #StakeholderEngagement in #AgentBasedModeling, exploring hidden dimensions of #Expertise, its diverse sources, and its subtle influence on #ComputationalModels and the #ModellingProcess. Read the full #OpenAccess article on #jasss: jasss.org/28/3/10.html

000

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 27/08/2025

Can #AI accelerate #ABM development? By leveraging #LLMs like #ChatGPT & #Llama, this study shows how automating model feature extraction can transform simulation design & boost efficiency. Read the full #OpenAccess article on #jasss: www.jasss.org/28/3/9.html

020

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 22/08/2025

What if predicting #behaviorchange was simpler than we thought? Hugo Lyons Keenan, Roben Delos Reyes & @camzachreson.bsky.social show how just two data-driven parameters in a #microsimulation reveal real #learning and persistence patterns. youtu.be/71nq_Hg-Ff8?...

youtu.be

A Microsimulation Model of Behaviour Change Calibrated to Reversal Learning Data

YouTube video by Jasss Journal

001

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 20/08/2025

Understanding #behaviorchange is vital to explain collective phenomena. This new #microsimulation captures #learningdynamics with just 2 parameters, offering a validated step toward better #collectivebehavior modeling. Read #OpenAccess on #jasss: www.jasss.org/28/3/8.html

000

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 16/08/2025

How do #opinions evolve on social media? A new #simulation framework merges #ABM, #LLMs & #ReinforcementLearning to ethically explore topic-specific #influence and the emergence of #opinionleaders in digital communities. Read #OpenAccess on #JASSS: jasss.org/28/3/6.html

000

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 28/07/2025

An #AgentBasedModel calibrated on South Korea reveals how #financialpolicies —#interestrates and #DSR limits—reshape #marketconcentration. Results expose firm-level mechanisms, thresholds, and macro trade-offs. Read #OpenAccess on #JASSS: www.jasss.org/28/3/5.html

000

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 24/07/2025

What happens when small task groups have multiple #leaders instead of one? New insights from #evolutionary #gametheory and #ABM reveal the trade-offs between clarity, #cooperation, and #status. Watch the teaser by Prof. Hsuan-Wei Lee! youtu.be/Y_IR7iaKuKw

youtu.be

How Multiple Leadership and Flattened Status Structures Affect Cooperation in Task Groups

YouTube video by Jasss Journal

000

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 22/07/2025

How do #status #hierarchies shape #cooperation in task groups? Using #ABM and #evolutionary #gametheory, this study reveals that #multileader hierarchies can work—but less effectively than single-leader ones. Read the full #OpenAccess article on #jasss: www.jasss.org/28/3/4.html

000

JASSS - Journal of Artificial Societies and Social Simulation @jasssjournal.bsky.social · 14/07/2025

This #ABM extends the Hegselmann-Krause framework by adding #dynamic #socialidentity. Results show how #openmindedness and #identity granularity shape #polarization — revealing when diversity bridges divides or reinforces them. Read #OpenAccess on #jasss: www.jasss.org/28/3/3.html

000