Figure 1
The center of the diagram shows two boxes arranged vertically, one above the other, labeled from top to bottom as “Stock 1” and “Stock 2”. From the left side of each box, a right-pointing arrow originates from a small cloud-shaped icon and points to the box, representing inflow, while another arrow exits from the right side of each box and points to a small cloud-shaped icon, representing outflow. The right-pointing arrow entering “Stock 1” has a valve labeled “Flow 2” in the middle. Likewise, the arrow exiting from “Stock 1” also has a valve in the middle labeled “Flow 1”. The right-pointing arrow entering “Stock 2” has a valve labeled “Flow 4” in the middle, and the arrow exiting from “Stock 2” has a valve in the middle labeled “Flow 3”. From “Stock 2”, a curved arrow arises upward and points toward “Flow 2”. From “Stock 1”, a curved arrow arises downward and points toward “Flow 3”.An example of a feedback loop. Source: Authors’ own elaboration