What is the Pareto principle (80/20 rule)?

The Pareto principle, also known as the 80/20 rule, describes the observation that, in many situations, around 80 % of the results stem from around 20 % of the causes or activities.

The principle is named after the economist Vilfredo Pareto, who first observed that a large proportion of a society’s wealth is often concentrated in the hands of a small proportion of the population.

In the context of businesses and start-ups, this principle is used to identify opportunities for efficiency gains and to set priorities.

Typical examples of the Pareto principle in business include:

  • 80 % of turnover comes from 20 % of customers
  • 80 % of users use 20 % of the product’s features
  • 80 % of the problems arise from 20 % of the causes
  • 80 % of growth comes from 20 % of marketing channels

The central idea here is not the exact mathematical distribution, but the fundamental pattern of inequality in systems.

Advantages of applying the Pareto principle:

  • better prioritisation of tasks and resources
  • Focus on particularly effective activities
  • more efficient use of time and budget
  • faster identification of growth drivers
  • Reducing unnecessary complexity

This principle is particularly valuable for start-ups, as resources such as time, capital and staff are limited. By identifying the top 20 % activities, companies can drive growth more quickly and avoid inefficient processes.

Typical areas of application include:

  • Product development (focus on core functions)
  • Marketing (prioritising top-performing channels)
  • Sales (identifying key customer segments)
  • Customer service (resolve the most common issues first)

At the same time, it is important to note that the Pareto principle is not an exact scientific rule, but rather a heuristic model. The actual distributions may vary depending on the context.

innoWerft helps founders to identify high-impact levers within their businesses, set the right priorities and deploy resources efficiently to achieve sustainable growth.