Examples of the Pareto Principle exist in everything from real estate to income inequality to tech startups. In the 1950s, three percent of Guatemalans owned 70 percent of the land in Guatemala. In 2013, 8.4 percent of the world population controlled 83.3 percent of the world’s wealth. In 2015, o...

The 80/20 Principle says that the majority of your results or outputs will come from a minority of causes or inputs. The ratio may not always be exactly 80:20, i.e it could be more imbalanced at 90:10 or less imbalanced at 60:40. The key idea is- there’s typically a nonlinear relationship betwee...

As humans we make assumptions, and one of those is that all causes have the same significance, more or less. We assume every bit of business, every product, every lead is as good as the next. While that’s a surprisingly democratic view of life, Koch calls it the ’50/50 fallacy’. He argues that pr...

The 80-20 rule has found applications in business management. For business sales, 20% of a company’s customers are responsible for 80% of the sales. Also, 20% of the employees are responsible for 80% of the results. For project management, many managers have noted the first 20% of the effort put ...