What is the 80/20 rule?

What is the 80/20 rule?

• A. 80 percent of effects come from 20 percent of sources
• B. 20 percent of effects come from 80 percent of sources
• C. 50/50 relation
• D. The rule is not applicable to sustainability

Answer: (A)

The 80/20 rule, or Pareto principle, says that a small number of causes usually gives rise to the majority of effects. In practice, about 20% of inputs or sources drive roughly 80% of the results. This helps you focus on the most impactful sustainability issues or cost drivers, identifying the few sources that create most of the effect and directing effort and reporting toward them. The option that states 80 percent of effects come from 20 percent of sources is the correct expression of this idea. The reverse idea (20% of effects from 80% of sources) contradicts the rule, the notion of a 50/50 split isn’t what the principle describes, and the rule is indeed applicable to sustainability analytics and prioritization.

The 80/20 rule, or Pareto principle, says that a small number of causes usually gives rise to the majority of effects. In practice, about 20% of inputs or sources drive roughly 80% of the results. This helps you focus on the most impactful sustainability issues or cost drivers, identifying the few sources that create most of the effect and directing effort and reporting toward them. The option that states 80 percent of effects come from 20 percent of sources is the correct expression of this idea. The reverse idea (20% of effects from 80% of sources) contradicts the rule, the notion of a 50/50 split isn’t what the principle describes, and the rule is indeed applicable to sustainability analytics and prioritization.