Vensim newsletter, June 2024
– Vensim™ 10.2 is now available (featuring Sensitivity2All and multi-core sensitivity/optimization). – System Dynamics Conference – Online courses – Resources for Vensim users – Distributors Vensim 10.2 Released Vensim 10.2 is now available for download: – New loops tool. We’ve redesigned the loops tool. You can now highlight structure on a sketch. – New causal […]
Vensim/Ventity Releases & News, April 2022
1. Spring sale sale, through May 20th 2022 If you’ve been waiting to move to the premier dynamic modeling tool, or to extend your maintenance and upgrade to the latest version of Vensim, now is a great time. All Vensim editions are on sale, 20% off, through mid-May 2022. Ventity subscriptions continue to be inexpensive […]
Vensim 9 launch sale, Ventity release and System Dynamics Society Seminar Series.
1. Vensim 9 2. Vensim 9 launch sale, throughout the month of August 2021 3. Ventity 4.6 4. System Dynamics Society Seminar Series, Introduction to Modeling Process – Nici Zimmermann, August 18th 2021 5. Online courses 6. Applications 7. In the Forum 8. System Dynamics Conference News 9. Resources for Vensim users 10. Our official […]
Science Dynamics Reviews
Our distributor in the Czech Republic has been publishing regular scientific reviews, all of them contain models and applications of Vensim. They are published in both English and Czech English editionhttps://sciencedynamics.net/index.php/en-us/blog Czech editionhttps://sciencedynamics.net/index.php/cs/blog
Ventana news – Vensim 8.2 (including Apple M1 processor support) & Ventity releases
Ventana Systems NewsVensim 8.2 including Apple M1 processor supportForum daily digestsVentityOnline coursesApplicationsIn the ForumSystem Dynamics Conference NewsResources for Vensim usersOur official distributors Ventana Systems News Ventana is working on a number of applications that combine models and data to analyze strategies in complex systems: A state COVID19 response model that interprets test statistics and facilitates […]
Vensim 8.1 Release
Vensim 8.1 is now available for download. See you at the System Dynamics Conference to talk about it!
Coronavirus & Epidemic Modeling
Community Coronavirus Model This video explores a simple epidemic model, parameterized for a community confronting coronavirus. You can run the model using Vensim PLE or the Model Reader (or any higher version). Our getting started and running models videos provide a quick introduction to the software. The model: For PLE/Pro/DSS: community corona 7.mdl For the Reader (or any other): community corona 7.vpmx.zip There’s […]
September newsletter, Ventana news – Vensim 8 & Ventity 3 releases
1. Vensim 8 2. Vensim 8 launch sale, throughout the month of September 2019 3. Ventity 3 4. Online courses. 5. Applications 6. In the Forum. 7. System Dynamics Conference News. 8. Resources for Vensim users. 9. Our official distributors 1. Vensim 8 Release Vensim 8 has been released. It’s is now fully 64 bit […]
Translating Vensim models to Ventity
This video covers Ventity’s features for importing Vensim models.0:00 – a quick overview of the import feature and how we think about it1:37 – importing a simple model of stock management18:05 – importing a more complex, subscripted competitive market model
Dynamic Simulation > Spreadsheets
This video explores the improvements possible when a complex spreadsheet model is translated into Vensim.
Work-Education Mismatch
Congratulations to Navid Ghaffarzadegana, Xue Yi and Richard Larson for their publication in EJOR, Work-education mismatch: An endogenous theory of professionalization.
Vensim 7 Release
Vensim 7 is available for download or purchase in the Vensim store. This includes several significant new features, including: – Interactive sensitivity runs in Synthesim – Percentile export for sensitivity runs– Calibration payoffs can now compare model variables to one another as well as to data (great for synthetic data experiments)– A trigger for data […]
Vensim 7 Synthesim + Sensitivity
In Vensim 7, we’ve combined real-time Synthesim with sensitivity analysis, so you can see the distribution of outcomes from Monte Carlo runs interactively. This is great for giving users an appreciation of the risk associated with a decision, rather than just a best guess.
Modeling Discrete & Stochastic Events
It’s generally a good idea to begin thinking about your models with continuous time and quantities, particularly for strategic applications where you care about the big picture. But there are times when it matters that quantities are discrete – you can’t ride half a horse. Here’s a quick look at modeling such situations, starting with […]
December Sale
If you’ve been waiting to move to the premier dynamic modeling tool, or to extend your maintenance and upgrade to the latest version of Vensim, now is a great time. All Vensim editions are on sale, 20% off, through the end of December. Buy direct at the Vensim store. At the checkout stage, enter the […]
New C-ROADS and World Climate simulators
The latest version of Climate Interactive‘s award-winning C-ROADS climate change policy simulator, powered by Vensim, is available athttps://www.climateinteractive.org/tools/c-roads/ You can run the simpler World Climate version online, in a nice browser interface:
Integrated Sustainable Development Goals planning model (iSDG)
The Millennium Institute (MI) is pleased to announce the release of Version 1.2 of the Integrated Sustainable Development Goals planning model (iSDG). The iSDG is a comprehensive simulation tool developed with Vensim that generates country-specific development scenarios to show the implications of policy interventions on a country’s progress towards the SDGs. What’s New in Version […]
Energy Policy Simulator
Energy Innovation has a cool new simulator that lets users explore what it takes to achieve energy and emissions targets, in detail. The simulator is online with a custom HTML5 interface that runs a Vensim model on servers using the Multicontext shared library. The interface was developed by Todd Fincannon. It has extensive documentation, and […]
Vensim Causal Loop Diagramming
This video shows several ways to build causal loop diagrams in Vensim. We start simple with Vensim PLE, and then illustrate some additional features, like navigation links, that are possible in DSS. The first ten minutes should have you up & running on the basics.
ISDC 2016 Best Poster 2016
Congratulations to Joona Tuovinen for receiving the Best Poster award at ISDC 2016, for The Dynamics of Product Commonality: implications of the circular causality between product and firm structures. The conference proceedings include the paper and Vensim model in the Supporting Material.
Model Analysis – World Dynamics
This video walks through a critique of the World model that kicked off the Limits to Growth debate, starting with Forrester’s World Dynamics, followed by World3 and the Limits to Growth and many subsequent works. The purpose of this video is not to discuss the mapping of the world models to the real world, though […]