JASSS

JASSS is an interdisciplinary, online, open access journal for the exploration and understanding of social processes by means of computer simulation

[JASSS @JASSSJournal]

#JASSS is expanding its digital presence! 🌍

Join our community on LinkedIn, BlueSky, and YouTube to stay updated on new research, calls, and initiatives🚀

🔗In: https://t.co/81jX9xbdaB
🔗BS: https://t.co/QB7h9crxwW
🔗YT: https://t.co/b6gtheBYrE

[Review of Artificial Societies & Social Simulation @RofASSS]

New contribution: "Theory is Two-Faced and this can be a problem for modellers" by Bruce Edmonds. #abm #theory #inference #modelling #socialsimulation #simulation #RofASSS @bruceedmonds https://t.co/k3C3F1uTrG

[JASSS @JASSSJournal]

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: https://t.co/hpdrPz26Sk

[JASSS @JASSSJournal]

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👉 https://t.co/h0AcE0as1m

[JASSS @JASSSJournal]

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: https://t.co/rtPCTuTaVM

[JASSS @JASSSJournal]

The same voting reform can polarize one democracy and moderate another. It comes down to system size.

Thomas Mustillo (@KeoughGlobalND, @KelloggInst) breaks down his new #JASSS paper on party competition under costly voting🎥https://t.co/ICnsdfz1cu

[JASSS @JASSSJournal]

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: https://t.co/TxrDLPB9uc

[JASSS @JASSSJournal]

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: https://t.co/L0OvIqpkAC

[JASSS @JASSSJournal]

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://t.co/FKOKR8JjY6

[JASSS @JASSSJournal]

It looks like our editor @squazzoni took some days off. Don't expect prompt replies in the next couple of days!

[JASSS @JASSSJournal]

System-level interventions can ignite cascades of change. They can also collapse under mis-targeting.

New #JASSS paper by @gaveltri models the tradeoff and proposes a portfolio approach to scale power without losing the safety net

Read #OpenAccess here: https://t.co/YXXD3SL1dw

[JASSS @JASSSJournal]

📢 #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 👇
https://t.co/Bhrt17u6Ts

[JASSS @JASSSJournal]

🔎 Sneak peek from the forthcoming #JASSS issue:
#Nudge individuals, or reshape the systems around them? Wrong question.

@gaveltri shows it's a transformation–robustness tradeoff 👇
https://t.co/uCZEcXULvf
#ABM #BehavioralScience #PublicPolicy

[JASSS @JASSSJournal]

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: https://t.co/noXe162EkC

[JASSS @JASSSJournal]

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: https://t.co/eauro8x2b5

[JASSS @JASSSJournal]

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: https://t.co/QE7kTV2EPB

[JASSS @JASSSJournal]

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: https://t.co/sR6vffb88L

[JASSS @JASSSJournal]

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: https://t.co/K0XzcwXgWs

[JASSS @JASSSJournal]

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: https://t.co/ZAdsmU0XIV

[JASSS @JASSSJournal]

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: https://t.co/z36guhm4pY

[JASSS @JASSSJournal]

Although we love #archeaologists, we are trying to do our best to avoid this! #peerreview #review #journals #reviewer