System Zoo Z418 - Sustainable Use of a renewable resource from Hartmut Bossel (2007) System Zoo 2 Simulation Models. Climate, Ecosystems, Resources

System Zoo Z104: Exponential delay from System Zoo 1 by Hartmut Bossel

Adapted from Hartmut Bossel's "System Zoo 3 Simulation Models, Economy, Society, Development."

​Population model where the population is summarized in four age groups (children, parents, older people, old people). Used as a base population model for dealing with issues such as employment, care for the elderly, pensions dynamics, etc.

System Zoo Z109: Logistic growth with constant harvest from System Zoo 1 by Hartmut Bossel

Exercise 6 simulates a whale poplutation with a minimum reproductive capacity

System Zoo Z105: Time-dependent growth from System Zoo 1 by Hartmut Bossel

This models the progressive decline of the ability for self-reliance and the growing dependence on outside help. ​Z508 p39-42 System Zoo 3 by Hartmut Bossel. Strong outside help causes a collapse of self-help capacity. Weak outside help produces a stable combination of wellbeing and self-help capacity.