Figure 1
The model shows five circular nodes connected by directed arrows with numeric labels. At the top center is a circle labeled “c”. From “c”, a diagonal arrow labeled “4” points down-left to a circle labeled “d”. Another diagonal arrow labeled “3” points down-right from “c” to a circle labeled “g”. Between the middle nodes, a horizontal arrow labeled “1” points from “d” on the left to “g” on the right. From “d”, a diagonal arrow labeled “3” points downward to a circle labeled “e”, positioned below the center. From “e”, a vertical arrow labeled “2” points downward to a circle labeled “f”, which is located at the bottom center. Finally, from “g”, a diagonal arrow labeled “4” points downward to the circle labeled “f”. The nodes “c”, “d”, “g”, “e”, and “f” are enclosed within a rectangular border.An influential map