Opening of the 9th World Congress of microsimulation association IMA, first live congress since Covid. Majestetic surroundings at the University of Vienna. Weather forecast: colder than Helsinki..

Today we started the TAZMOD training 2023. This year the training will be back-to-back with the 1st training of the brand new tax and benefit microsimulation model for Zanzibar (ZANMOD). Very excited to meet the local community of model users ⁦@UNUWIDER⁩ ⁦@SaspriSA⁩

How would changing the VAT threshold from £90k affect revenues? Our new firm microsimulation model shows: • £70k threshold: +£642m revenue • £100k threshold: -£371m revenue • £120k threshold: -£1.1bn revenue All estimates for 2026-27.

🤝 Big news: PolicyEngine and @nberpubs have signed an MOU to ensure researchers worldwide continue accessing critical tax microsimulation tools. We're building an open-source TAXSIM emulator, combining NBER's 50+ years of tax expertise with modern open-source infrastructure.

Congratulations to @Rachel_Thomson who passed her viva yesterday 🎓🎉 Rachel’s PhD focused on developing a microsimulation model predicting the impacts of changes to welfare policy on population #MentalHealthInequalities and testing it using #UniversalBasicIncome

This upcoming short course will provide a survey of commonly used simulation models for decision making in public health research, including cohort-/population-based simulation, microsimulation, agent-based, and compartmental models. Register now: https://t.co/SRZoDgCER2 #SMDM

Warming up ANU PolicyMod Microsimulation Model for next week's budget. Trajectory for average tax rates - bracket creep over recent years arrested by stage 3 (V2) tax cuts across the income spectrum. By 2028/29 (last year of the forward estimates we are back to pre-tax cut rates

We have 4⃣ postdoc positions open right now! ⚕️ Health Econ: https://t.co/n3rTsIhFBB 📈 Labour Econ: https://t.co/jzcJ7soVDk 💊 Microsimulation & Pharmacoeconomics: https://t.co/Jy9iIk5qQR 🌍 Political & Behavioral Econ: https://t.co/on0BCkYfSe Apply by 31 January 2025! 📅💻

I’m thrilled to participate in the Zanzibar Tax and Benefit Microsimulation Model launch and first training of the model! @UNUWIDER @SaspriSA

🆕 We've launched the OBBBA Household Explorer—an interactive tool showing how the reconciliation bill affects individual households across America. Explore 40,000+ representative households from our microsimulation-grade dataset:

New analysis: The 2025 American Family Act would expand the Child Tax Credit to $4,320 for children under 6 and $3,600 for children 6-17, with a $2,400 baby bonus for newborns. Our microsimulation shows the policy would cost $2.5 trillion over 10 years and cut child poverty 25%.

🌍 Exciting News! Explore tax-benefit microsimulation with UNU-WIDER’s new online course designed for the Global South. Gain essential skills in policy analysis and make a meaningful impact. Enroll now—it’s free! 🔗 Learn more: https://t.co/WJtkKrFtge #PolicyAnalysis #UNUWIDER

NEW microsimulation modelling from @jrf_uk. Following #Budget2024 and the latest OBR forecasts, we find average disposable incomes are now set to fall across the parliament. By October 2029, the average family is set to be £770/yr worse off in real terms compared with today. 1/

Using an agent-based microsimulation model and assuming that current trends continue, this decision analytical modeling study estimates a substantial increase in clinical burden of MASLD over the next 3 decades in the absence of effective treatments.

📃 IEB #WorkingPaper 2025/8 on #TaxSystems Analysis: “Fiscal Drag with Microsimulation: Evidence from Spanish Tax Records” By ✍️ Sofía Balladares, and Esteban García-Miralles (@eg_miralles) 🧵⬇️

📌New opportunity to work with @MigrantLife_ERC and CPC-CG @StAndrewsSGSD Post-doctoral Research Fellow to work on #family and #housing projections using #microsimulation. Apply by 1 October #poptwitter: https://t.co/oFBeZWIlW3

It was a great honor and pleasure to give the keynote lecture at the First Workshop of the ESCB Network of Microsimulation Modelling at the Banco de Portugal! Many thanks to the organizers for inviting me and for putting together such a great program! https://t.co/jMF5miL9M8

We have a free online course on tax-benefit microsimulation! But what are the real-life applications and benefits of tmicrosimulation? Watch Joseph Okello explain what our models have done in Uganda and register for the course today! 🔗 https://t.co/jFpiXzqWWt #SOUTHMOD

📢 We’re pleased to announce the 4th UKMOD Fest! Join developers, users & friends of UKMOD — for a day of sharing experiences & ideas. 🗓 20 Oct 2025 💻 Online (free) Programme and registration: https://t.co/1HvnXQdSmc #UKMOD #microsimulation #policy @iseressex @euromod_