Hybrid cars are a smart move - for the classic automotive industry by Kai Neumann

as the following article annoys me I modeled this model https://www.nature.com/articles/s41598-017-16684-9 

Solution: Wars on earth by Kai Neumann

A model explaining the common reasons for wars on earth This model is part of a series of models that could serve as examples for small models on global challenges as they could be modeled by pupils. Of course, depending on their age and the time that is available as well as the help you offer they could come up with more details. What is the model asking?The model asks seemingly naively for the reasons for wars in the world using the KNOW WHY Questions from the KNOW WHY Method as they show up when we us...

General Trend Model by Kai Neumann

Reflexion on thorium reactors by Kai Neumann

this is just a first scetch of a cause and effect model ... if you look at the matrix of the factor thorium reactor you will recognize that this model is dominated by balancing feedback loops (...) you may contact me (kai@ilsa.de) to get a copy of the model or even to collaboratively model it with me and others in any way: many insights and happy modeling Kai

Portugal's housing crisis - a systemic view by Kai Neumann

a model on the bold or weird ideas of the Portuguese government to tackle the housing crisis: https://www.portugalresident.com/portugals-housing-crisis-just-keeps-on-getting-worse/ for more see the menu ... presenter note: you may change the colors of the factors and their fonts if your screen doesn't show them properly. 

Aufgabe: Steigerung der Attraktivität einer Region by Franc Grimm

Dieses Modell ist Teil einer Aufgabenstellung unseres Online-Kurses "Qualitative Modellierung". Weitere Informationen zu unseren Kursen sind verfügbar unter: https://www.vernetztesdenken.de/ 

Are Resource Costs Macroeconomically seen Costs? by Kai Neumann

In many of my client's models and I have to admit in some of my own as well the depletion of resources simply leads to an increase of resource prices which decreases spending power and competitiveness. But if we widen our system's boundary we can at least put into perspective this view. This qualitative model shows why.

Rise of nationalism and populism in the world by Kai Neumann

Just started this model while listening to a podcast from Fareed Zakaria and his interview with Colin Powell and Madeleine Albright ....  I think there is a lot to add to this so please join the modeling using to collaborative link :-)

Ejemplo: Para fines Prácticos by enrique.ley.q@g*

The price of sustainability by Kai Neumann

Being tired of the complaints that renewable energy is expensive, that we cannot afford the conservation of natural habitats, that not all people can purchase organic products, that our industry looses jobs, our citizens cannot bear the burden of the costs of sustainable solutions, and so forth I started this model. As it turned out it is not as easy as I thought. My original assumption was that any additional expenses should - with a high domestic value creation compared to the import of fossil fuels - ...