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 This model is derived from the paper " Nobody Ever Gets Credit for Fixing Problems that Never Happened: Creating and Sustaining Process Improvement " by Nelson P. Repenning and John D Sterman. See  Insight 752  for a causal loop version of this model.  @ LinkedIn ,  Twitter ,  YouTube

This model is derived from the paper "Nobody Ever Gets Credit for Fixing Problems that Never Happened: Creating and Sustaining Process Improvement" by Nelson P. Repenning and John D Sterman. See Insight 752 for a causal loop version of this model.

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 Důchodová kalkulačka po reformě, pro narozené mezi lety 1972 a 2005   Autor: Viktor Vojtko (www.viktorvojtko.cz)     Verze je zatím určená k testování, průběžně ji aktualizuji a může obsahovat chyby.     Výsledky při základním nastavení představují vizi hnutí Starostové a nezávislí o tom, jak by se
Důchodová kalkulačka po reformě, pro narozené mezi lety 1972 a 2005
Autor: Viktor Vojtko (www.viktorvojtko.cz)

Verze je zatím určená k testování, průběžně ji aktualizuji a může obsahovat chyby.

Výsledky při základním nastavení představují vizi hnutí Starostové a nezávislí o tom, jak by se do budoucna měly generovat příjmy v důchodu. Nejedná se tedy ani o investiční radu ani o garanci skutečných příjmů.
 Goodwin cycle  IM-2010  with debt and taxes added, modified from Steve Keen's illustration of Hyman Minsky's Financial Instability Hypothesis "stability begets instability". This can be extended by adding the Ponzi effect of borrowing for speculative investment.

Goodwin cycle IM-2010 with debt and taxes added, modified from Steve Keen's illustration of Hyman Minsky's Financial Instability Hypothesis "stability begets instability". This can be extended by adding the Ponzi effect of borrowing for speculative investment.

The SEIRS(D) model for the purpose of experimenting with the phenomena of viral spread. I use it for COVID-19 simulation.
The SEIRS(D) model for the purpose of experimenting with the phenomena of viral spread. I use it for COVID-19 simulation.
La situación modelada expresa el crecimiento de las ventas impulsadas por la motivación y productividad, pero es frenada por el tamaño del nicho de mercado.
La situación modelada expresa el crecimiento de las ventas impulsadas por la motivación y productividad, pero es frenada por el tamaño del nicho de mercado.
This is a simplified predator-prey model simulating the relationship between pangolins (predators) and ants/termites (prey). It uses stocks and flows to represent population changes, including birth and death rates. The goal is to understand how changes in birth rates, predation, and mortality affec
This is a simplified predator-prey model simulating the relationship between pangolins (predators) and ants/termites (prey). It uses stocks and flows to represent population changes, including birth and death rates. The goal is to understand how changes in birth rates, predation, and mortality affect long-term dynamics.

Deep within the emerald embrace of Palawan's rainforests, a delicate dance of survival unfolds between the elusive Philippine pangolin and the teeming colonies of ants and termites. The pangolin, a nocturnal marvel with its armored scales, is a silent hunter, its long claws expertly ripping open termite mounds and ant nests. The ants and termites, oblivious to the impending danger, continue their tireless work, building their intricate societies unaware of the predator lurking in the shadows. 

The pangolin's population fluctuates, mirroring the abundance of its prey. When ants and termites thrive, the pangolin population flourishes, their numbers swelling as they feast on the plentiful insect buffet. But when a drought or disease decimates the insect colonies, the pangolins face hardship, their numbers dwindling as food becomes scarce. This delicate balance, a testament to the interconnectedness of life, is a vital thread in Palawan's rich biodiversity tapestry. The pangolin, a keystone species, plays a crucial role in maintaining the health of the rainforest ecosystem, preventing any one insect population from becoming overwhelmingly dominant. Its presence, a silent guardian, ensures the continued vibrancy of this unique and precious corner of the world. The story of the pangolin and its insect prey is a microcosm of the larger story of life in Palawan, a story of interdependence and resilience in the face of nature's ever-changing rhythms.