Systems Dynamics

A tested tutorial: load a Vensim model with PySD, run it, validate against the analytic Bass solution, and sweep parameters.

Technical debt is a stock that grows quietly then strangles a team. A stock-and-flow view shows why, and how to manage it.

Every growth engine is paired with a limit that eventually dominates. Here is how the limits to growth structure works, and how to respond.

Rapid growth against a shrinking resource, plus delayed feedback, produces overshoot and collapse. Here is how the pattern works.

A small demand blip can become a violent swing upstream. The bullwhip effect reveals how structure, not blame, drives supply chain instability.

Model Validation helps analysts move beyond isolated events toward patterns, relationships, delayed effects, and the structures shaping behavior. This g

Model Validation helps analysts move beyond isolated events toward patterns, relationships, delayed effects, and the structures shaping behavior. This g

Reference Mode helps analysts move beyond isolated events toward patterns, relationships, delayed effects, and the structures shaping behavior. This gui

Reference Mode helps analysts move beyond isolated events toward patterns, relationships, delayed effects, and the structures shaping behavior. This gui

Systems thinking is a broad orientation and family of approaches; system dynamics is a modeling methodology focused on feedback, accumulation, and behavior over time.