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 Z412 Tourism Dynamics from Hartmut Bossel (2007) System Zoo 2 Simulation Models. Climate, Ecosystems, Resources

Model Z605 Miniworld, from System Zoo 3 by Hartmut Bossel

​System Zoo Z412 Tourism Dynamics from Hartmut Bossel (2007) System Zoo 2 Simulation Models. Climate, Ecosystems, Resources

Model Z605 Miniworld, from System Zoo 3 by Hartmut Bossel

Often a single prey population is the source of food for several  competing predators (e.g. mice as prey of foxes and birds of prey)​. Here again a reliable intuitive assessment of long-term development resulting from the particular system relationship is impossible. A simulation model can assist in recognizing development trends inherent in the system structure even if in reality a variety of other factors determine the development and may cause it to proceed on a somewhat different path.

Rotating Pendulum Z201 from System Zoo 1 p80-83

Often a single prey population is the source of food for several  competing predators (e.g. mice as prey of foxes and birds of prey)​. Here again a reliable intuitive assessment of long-term development resulting from the particular system relationship is impossible. A simulation model can assist in recognizing development trends inherent in the system structure even if in reality a variety of other factors determine the development and may cause it to proceed on a somewhat different path.

Z209 from Hartmut Bossel's System Zoo 1 p112-118. Compare with PCT Example IM-9010

​System Zoo Z412 Tourism Dynamics from Hartmut Bossel (2007) System Zoo 2 Simulation Models. Climate, Ecosystems, Resources

Exploring the conditions of permanent coexistence, rather than gradual disappearance of disadvantaged competitors. ​Z506 p32-35 System Zoo 3 by Hartmut Bossel.

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

Often a single prey population is the source of food for several  competing predators (e.g. mice as prey of foxes and birds of prey)​. Here again a reliable intuitive assessment of long-term development resulting from the particular system relationship is impossible. A simulation model can assist in recognizing development trends inherent in the system structure even if in reality a variety of other factors determine the development and may cause it to proceed on a somewhat different path.

​System Zoo Z412 Tourism Dynamics from Hartmut Bossel (2007) System Zoo 2 Simulation Models. Climate, Ecosystems, Resources

Rotating Pendulum Z201 from System Zoo 1 p80-83

Z204 from System Zoo 1 p91-94

System Zoo Z107: Infection dynamics from System Zoo 1 by Hartmut Bossel

Often a single prey population is the source of food for several  competing predators (e.g. mice as prey of foxes and birds of prey)​. Here again a reliable intuitive assessment of long-term development resulting from the particular system relationship is impossible. A simulation model can assist in recognizing development trends inherent in the system structure even if in reality a variety of other factors determine the development and may cause it to proceed on a somewhat different path.

System Zoo Z107 exercise 2: Infection dynamics, exercise 2 (a part of the population is immune to infection) from System Zoo 1 by Hartmut Bossel

This is my attempt at the problem, not necessarily correct!

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

Z209 from Hartmut Bossel's System Zoo 1 p112-118. Compare with PCT Example IM-9010

Insight Maker model based on the Z415 System Zoo model originally developed in Vensim.

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

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