Fig. 3. Stepwise construction of a cattle-based rural livelihood system in southeastern Zimbabwe using fuzzy cognitive maps. (A) The central building blocks of the overall scheme. (B) Variables affecting the amount of cattle in the household are added to the central building blocks. (C) Variables determining total crop harvest are added. (D) Drivers determining the functioning of the system are added. Gray boxes are key indicators of the functioning of the livelihood; white boxes are variables; white circles are system drivers.