ct Modell Projekt Gartenteich by Kai Neumann

Quantitative Model Personal Financial Situation by Kai Neumann

Just a small quantitative model taken from a very large model. It shows a way to model the financial situation of persons or groups of persons with spendings and income as given parameters and savings (and pensions) and credits as a result.

Tutorial model: Strategy development by Kai Neumann

The dynamics of cancer (collaborative model) by Kai Neumann

Just the start of a model since I was asked for a rather general model on this difficult topic. Since I am a layperson this model should be improved by either directly editing it via collaboration link or at least discussing it.

Biomass Web: Accra's Mini Model on Exports by Kai Neumann

Just a small model to facilitate a discussion during a workshop in Ghana. The thesis was that seasonality would lead to less exports of crops and the counter argument was that it might lead to a necessity to export if domestic demand isn't able to consume all the crops. However, if irrigation leads to less seasonality it might be possible to export more. Tricky, isn't it?

Quantitative model for the recycling of paper (with stocks) by Kai Neumann

Small exercise to model recycling of paper It can be used for glass or plastics as well. A scenario could be that there is a short term increase of demand or a extraordinarily low price so a paper mill decides to buy more wood which will with a delay lead to more recycled paper and a possible overproduction unless the purchase of wood is lowered again.

Reduced SDG model by Kai Neumann

General Trend Model by Kai Neumann

Mini Model on Green Investments by Kai Neumann

a very small model showing the major levers as they turned out in larger models on know-why.net

利润 (Profit model in chinese) by Daoen Pan

这是一个有关公司如何增加利润的模型。“市场营销”，“员工激励”，“削减预算“等等方法和措施将对公司的短期，中期和长期利润产生直接或者间接的影响。 This mode is based on Profit (qualitative and quantitative model) from Franc Grimm.