Positive feedback loop
Negative feedback loop
Example of negative feedback loop
How to determine if a loop is positive or negative?
Exercise: is this loop positive or negative?
Example: the pygmalion effect
Exponential growth: the doubling time
People have difficulties in understanding exponential growth
Events, patterns of behavior and systems' structures
Negative feedback loop with delays
Review: causal links and feedback loops
Measurement, reporting and perception delays
Administrative and decision-making delays
Causal loop diagrams