Fig. 1
From: Conceptualizing the dynamics of workplace stress: a systems-based study of nursing aides
System dynamics model of components related to workplace stress. Rectangle box indicates stock variable that accumulates or depletes over time; Thick arrows indicates a flow variable which refers to the rate of change in the stock over time; ‘+’ = A positive relationship which indicates that components change in the same direction; ‘-‘ = A negative relationship indicates that components change in different directions