Loop Impact

 

  • Force and Impact

    In mechanics, force produces acceleration in an object. The same concept can be used in system dynamics to describe how any time-varying signal can cause acceleration in a stock – a dynamic variable. That signal may be exogenous or come […]

     

  • Balancing Loops: Growth and Decline

    Early on in a system dynamics (SD) course, it is usual for a learner to be introduced to two types of first-order balancing loops: one where the stock grows, and one where the stock declines. Death Process Take the decline […]

     
  •  

  • Reinforcing Loops and Growth

    I have often seen the following causal loop used in system dynamics presentations to explain a reinforcing loop: Figure 1: Causal Loop Diagram of Simple Birth Process The argument then runs: the more population, the more births, hence more in […]

     
 
 
 

Loop Impact

 

Newtonian Framework

 

Soft Variables