The 80-20 rule, also known as the Pareto Principle, states that 80% of all outcomes result from 20% of all causes. In business, this means seeking the most productive inputs that will generate the highest outcomes/returns. There are a number of practical applications for the 80-20 rule in diverse areas such as the distribution of wealth in economics, quality production control, business sales, and growth.
Key Takeaways
- The 80-20 rule, also known as the Pareto Principle, states that 80% of all outcomes (output) derive from 20% of all causes (inputs).
- The Pareto Principle was created by economist Vilfredo Pareto in Italy in 1906.
- The rule has far-reaching applications, including in quality production, the distribution of wealth, business, investing, and project management.
- In business, the principle asserts that 80% of a company's revenues should come from 20% of its customers.
Origins of the Pareto Principle
The 80-20 rule was invented by Vilfredo Pareto in Italy in 1906. According to legend,Pareto, an economist, noticed20% of the pea pods in his garden provided80% of the peas. He then determined20% of the population in Italy owned 80% of the land. The use of the80-20 rulehas since expanded beyond the alleged humble beginnings in Pareto’s garden.
Dr. Joseph Juran applied the 80-20 rule to quality control in the 1940s. He found that 80% of problems with products were caused by 20% of the production defects. By focusing on and reducing that20% of production defects, overall quality could be increased. Juran became an important figure in Japan after lecturing there extensively on quality control issues. His main phrase was, "thevital few andthe trivial many."
Managers at companies should identify the factors that are the most important to the company's success and give those factors the most attention.
The 80-20 Rule in Business and Investments
The 80-20 rule has found applications in business management. For business sales, 20% of a company’s repeat customers should be responsible for 80% of the sales. Also, 20% of the employees are responsible for 80% of the results.
For project management, the first 20% of the effort put in on a project should yield 80% of the project’s results. Thus, the 80-20 rule can help managers and business owners focus 80% of their time on the 20% of the business yieldingthe greatest results.
In investing, the80-20 rulegenerally holds that 20% of the holdings in a portfolio are responsible for 80% of the portfolio’s growth. On the flip side, 20% of a portfolio’s holdings could be responsible for 80% of itslosses.
Another method is to attempt to focus a portfolio on the 20% of stocks in the broader market that comprises 80% of the market’s returns; however, due to the uncertainty of future returns, both of these methods are difficult to put into practice. Stocks are inherentlyrisky assetsdue to the unpredictability of future performance.
One method for using the80-20rule in portfolio construction is to place 80% of the portfolio assets in a lessvolatileinvestment, such as Treasury bonds or index funds while placing the other 20% in growth stocks. The 80% in the lower-risk investment will collect a reasonable return, while the 20% in the higher-risk assets will hopefully achieve greater growth.
What Is an Example of the 80-20 Rule?
An example of the 80-20 rule is 80% of a company's revenues coming from 20% of its customers or 20% of a portfolio's most risky assets generating 80% of its returns.
How Do You Set Goals With the 80-20 Rule?
To set goals with the 80-20 rule, you primarily establish that 20% of your efforts/tasks will result in 80% of your results. For example, at work, 20% of the effort you put into your job will result in 80% of your tasks being completed/successful.
What Is the 80-20 Rule for CEOs?
CEOs can use the 80-20 rule by determining the 20% of tasks that need to be prioritized and done themself while delegating 80% of the tasks to their subordinates. This allows a CEO to effectively manage their responsibilities and be productive.
The Bottom Line
The 80-20 rule (Pareto Principle) has many applications that allow companies and investors to make the most efficient decisions. For example, a company would look to 20% of its customers generating 80% of its revenues. The same thought process can be applied to risk and reward in an investment portfolio. Overall, the application of the 80-20 rule helps to maximize efficiency.
FAQs
80% of crimes are committed by 20% of criminals. 80% of sales are from 20% of clients. 80% of project value is achieved with the first 20% of effort. 80% of your knowledge is used 20% of the time.
What is the 80/20 rule in practice? ›
Simply put, the 80/20 rule states that the relationship between input and output is rarely, if ever, balanced. When applied to work, it means that approximately 20 percent of your efforts produce 80 percent of the results.
What are some practical applications of the Pareto Principle? ›
Practical Applications
Below are a few examples of where it might be found: 80% of the work in a group project is done by 20% of the group. 80% of revenues come from 20% of the products. 80% of engine failures come from 20% of possible causes.
What is a real world example of Pareto distribution? ›
Think about your life too. I bet you'll recognize that:
- 20% of your co-workers create 80% of the problems in the office.
- 20% of the fundraisers on staff are responsible for 80% of the organization's revenue.
- And, 20% of the carpet in your office gets used 80% of the time!
Steps to apply the 80/20 Rule
- Identify all your daily/weekly tasks.
- Identify key tasks.
- What are the tasks that give you more return?
- Brainstorm how you can reduce or transfer the tasks that give you less return.
- Create a plan to do more that brings you more value.
- Use 80/20 to prioritize any project you're working on.
To set goals with the 80-20 rule, you primarily establish that 20% of your efforts/tasks will result in 80% of your results. For example, at work, 20% of the effort you put into your job will result in 80% of your tasks being completed/successful.
What is 80 20 best practices? ›
The concept, traceable to Italian economist Vilfredo Pareto, recognizes that 80% of your results come from 20% of your activities. Put in stark terms, 20% of what you do matters, the rest is a waste of time. The key to success is identifying the crucial 20% of input and prioritizing it.
How does the 80-20 rule apply to the work situation? ›
The 80-20 rule, also known as the Pareto Principle, is a familiar saying that asserts that 80% of outcomes (or outputs) result from 20% of all causes (or inputs) for any given event. In business, a goal of the 80-20 rule is to identify inputs that are potentially the most productive and make them the priority.
How do you visualize the 80-20 rule? ›
The Pareto chart is a visual representation of the 80-20 rule, featuring a bar + line chart. The bars represent the value of each item on your list (arranged in descending order), and the line indicates the cumulative percentage of those values.
What is a real life example of Pareto analysis? ›
80% of budget overruns are caused by 20% of expenses. 80% of your success comes from 20% of your ideas. 80% of the public uses 20% of their computers' features. 80% of crimes are committed by 20% of criminals.
More generally, the principle can be interpreted to say that a minority of inputs results in the majority of outputs. Here are a few examples of the Pareto principle in action: 20 percent of employees produce 80 percent of a company's results. 20 percent of a given employee's time yields 80 percent of their output.
How can you implement 80 20 Pareto principle to manage time explain with real life examples and practical tips? ›
How to Implement the 80/20 Rule in Your Life
- Step 1: List Your Tasks. Start by listing all the tasks you perform in a typical week. ...
- Step 2: Identify the 20% Next, identify the 20% of tasks that yield 80% of your desired outcomes. ...
- Step 3: Prioritise the 20% ...
- Step 4: Minimise or Outsource the 80%
Project Managers know that 20 percent of the work (the first 10 percent and the last 10 percent) consume 80 percent of the time and resources. Other examples you may have encountered: 80% of our revenues are generated by 20% of our customers. 80% of our complaints come from 20% of our customers.
Which of the following is the best example of the Pareto principle? ›
Example of the Pareto Principle
If an advisory practice has 100 clients, according to the Pareto Principle, 80% of the financial advisor's revenue should come from the top 20 clients. These 20 clients have the highest amount of assets and the highest fees charged.
What's the most productive way to apply the 80/20 principle to critical thinking? ›
What's the most productive way to apply the 80/20 principle to critical thinking? Focus on the 20% of efforts that impact 80% of the results.
What is the 80-20 rule in relationships examples? ›
For instance, you can expect to get 80% of your needs met by your partner in your relationship, but the other 20% is up to you. In another context, you can expect satisfaction from your relationship 80% of the time, while the other 20%, not so much.
What is an example of the 80-20 rule in construction? ›
Following are few example of Pareto principle in construction projects: 80% of the works problem are from 20% of the employees. 80% of long meeting outputs could be obtained in 20% of the time. 20% of your time creates 80% of your results.
What is an example of the 80-20 rule in marketing? ›
Here are some examples you may have already experienced in your business: 80% of your sales volume is generated by 20% of your customers. 80% of your revenues are generated by 20% of your products. 80% of your complaints come from 20% of your customers.
What is the 80-20 rule for dummies? ›
Once you have identified the 20% of tasks responsible for 80% of effects, prioritise them. These should be the areas that receive the most attention, resources, and effort. Focus on optimising the 20% of causes to increase their impact.
