Root Cause Analysis


Diagram of three main tools

The purpose of root cause analysis is to strike at the root of a problem by finding and resolving its root causes. Root cause analysis is the systematic practice of finding, resolving, and preventing recurrence of the root causes of causal problems.

Another definition is root cause analysis is “a class of problem solving methods aimed at identifying the root causes of problems or events. ... The practice of root cause analysis is predicated on the belief that problems are best solved by attempting to correct or eliminate root causes, as opposed to merely addressing the immediately obvious symptoms.” 1

Our fundamental principle is The only way to solve a difficult causal problem is to resolve its root causes. Accordingly, root cause analysis is the first of the three main tools in our approach to solving difficult social problems. The diagram explains how the three tools work together. A high quality root cause analysis can't be done without using a root cause oriented process, which in turn can't be done well without model based analysis. Tool 3 thus magnifies the power of Tool 2, which magnifies the power of Tool 1.

Why root cause analysis is such a powerful tool

Most sustainability problem solvers are doing exactly what the above definition cautions against. They are “merely addressing the immediately obvious symptoms” with superficial solutions. These absolutely cannot work because they do not “correct or eliminate root causes.”

Why root cause analysis is such a powerful tool was elegantly expressed by Henry David Thoreau in 1854 in his famous quote from Walden. Here's the full quote:

"There are a thousand hacking at the branches of evil for one who is striking at the root, and it may be that he who bestows the largest amount of time and money on the needy is doing the most by his mode of life to produce that misery which he strives in vain to relieve."

In other words, giving time and money to the needy does not resolve the root cause of their plight. It may even make the problem worse.


Here is the deepest, most penetrating insight on this entire website:

THE strategic reason popular solutions to the sustainability problem are failing is they do not resolve root causes. Given the principle that all causal problems arise from their root causes, no other explanation is possible because we've seen millions of activists working on the problem for over fifty years.

Popular solutions have made a small difference. Many small local successes have occurred. We've even had one international success: solving the stratospheric ozone layer problem. Overall, however, we've been winning battles but losing the war.

This insight holds for all types of problems that have gone unsolved for generations and where multitudes of solution strategies have been tried by brilliant and dedicated activists. Let's examine how this insight explains problem solving behavior at the macro level.

Classic Activism is the problem solving process used by over 90% of activists (including organizations) working on the sustainability problem and other problems whose solution would benefit the common good. The rest use comparative analysis or superfluous academicism. See the three chapters on these three processes in Common Property Rights: A Process Driven Approach to Solving the Complete Sustainability Problem. Since the most popular process is Classic Activism, let's examine it through the lens of the above insight. Let's see how much further understanding we can glean from the insight.

When a solution fails, classic activists assume they failed because they didn't get the truth across somehow. They didn't inspire enough people, or reach enough people with their message, or bargain correctly with stakeholders, or manage solution implementation correctly, and so forth. So they try the same types of solutions again but this time somehow different and better. They redouble their efforts to find the truth, promote the truth, and amplify the truth. When this too fails classic activists have no idea what to do next, so they repeat the above strategies with even more vigor and permutations or gradually give up.

There is, however, a completely different way for activists to look at their problems and solutions. This requires stepping through the door into a new paradigm. This is the world of complex social systems. These systems are populated by intelligent social agents with goals, constraints, assets, habits, and so on. At the heart of this paradigm lies the abstraction of systemic change resistance and the use of root cause analysis.

If change resistance is low, ClassicActivism works quickly. It took only about ten years to solve the stratospheric ozone hole problem.

If change resistance is medium, Classic Activism works but takes awhile. It took about 50 to 100 years to solve the women's suffrage problem in Western nations. It took centuries to solve the slavery problem and about 50 to 100 years to solve the subsequent civil rights problem.

If change resistance is high, Classic Activism never works. The problem is never solved, as in the environmental sustainability problem, the recurring wars and recessions problems, the institutional poverty problem, and the excessive income inequality problem. If change resistance is high and root causes analysis is not used, solutions invariably can't solve the change resistance subproblem. Since they can't solve that they can't solve the proper coupling subproblem, which is what most people consider the real problem to solve. For example in the environmental sustainability problem, the economic system is improperly coupled to the environment. Their relationship is unsustainable.

How root cause analysis works

It's vital to be able to think in terms of root causes. To make this easy and productive, here's a helpful diagram:


Click the diagram to see the causal chain present in all problems. Click it again to hide the chain. The chain runs from root causes up to intermediate causes and then on up to symptoms. This is the universal chain of cause and effect. It's everywhere because a system's many causal chains determine its behavior.

The immense challenge facing problem solvers is seeing what's below the superficial layer. What's in the superficial layer is easy to see. No analysis is necessary to find the intermediate causes and their solutions. But these are superficial because they don't go deep enough. They don't resolve the root causes.

To do that one must penetrate to the fundamental layer. This is extremely difficult to see so it requires analysis, which leads to the root causes and then to the fundamental solutions for resolving the root causes. Thus solving the problem requires seeing the causal chain that runs from fundamental solutions to root causes to intermediate causes to problem symptoms. That's how root cause analysis works.

Application example: climate change

One symptom of the sustainability problem is climate change. The main intermediate cause is too much greenhouse gas emissions. So what's the solution? If that's the cause, then the solution is obvious. It's mandatory limits on emissions or carbon taxes.

But why hasn't that worked? Because the root causes are not being resolved. What's the deeper cause of too much greenhouse gas emissions? The standard answer is externalized costs. This means it's cheaper to pollute than not to. Why is it cheaper? Because there are no laws internalizing the costs into market transactions, like emission limits or a carbon tax would do. This explains the great popularity of emission limits and carbon taxes.

But these solutions have not worked because most nations have been unable to pass the necessary legislation. The top two greenhouse gas emitters in the world, China and the United States, have not signed the Protocol Treaty on climate change. Most of the rest of the world is dragging its feet too. The shocking result is shown below: 2

Emissions graph

Emissions growth has proven to be unstoppable. Why? Because popular solutions have not been addressing root causes. In other words:

Those promoting popular solutions have been hacking at the branches of evil instead of striking at the root.

How can we strike at the root? With root cause analysis. Why is the world dragging its feet? Because of systemic change resistance. Until that is overcome there will be only modest progress in adopting popular solutions like mandatory limits and carbon taxes. That's why the sustainability problem needs to be subdivided into subproblems, the most important being: How to overcome change resistance? The root cause of change resistance needs to be found and fixed. Only after that will the system "want" to accept solutions like the Kyoto Protocol on climate change and carbon taxes.

But the environmental movement is not treating change resistance as a distinct and separate problem to solve. Instead, it's using inspiration, exhortation, and bargaining to try to get solutions adopted. This is step four of Classic Activism.

If classic activists switched to a process that was driven by root cause analysis and treated change resistance as a separate problem, then it would not be long before the above graph took a more pleasant turn downward.

The four root causes of the sustainability problem

The analysis at found four main root causes of the environmental sustainability problem. Finding them took about seven years, due to the extreme difficulty of the problem and the need to simultaneously develop a suitable process.

The System Improvement Process divides the one big problem into the three subproblems present in all difficult social problems: How to overcome change resistance, how to achieve proper coupling, and how to avoid excessive model drift. The sustainability problem turned out to have two proper coupling problems, as described in Problem decomposition into the four subproblems. The root cause of each subproblem is shown below in the first gray row:

Table of summary of analysis

The contents of this table demonstrate how a well conceived root cause analysis can cut through the toughest of problems and reveal new insights that can lead to novel solutions that have not been considered. The hard part was finding the root causes. Everything else after that followed easily.

The Summary of Analysis is presented at the high level in Analysis of the Sustainability Problem. For the full analysis and the model behind it see Common Property Rights: A Process Driven Approach to Solving the Sustainability Problem.


(1) Definition from Wikipedia on October 24, 2011.

(2) Source of graph.

(3) Source of quote.

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How Can I Learn How to Do
Root Cause Analysis?

Book CoverThere's a wealth of information on that since root cause analysis is so widely used. How root cause analysis is performed varies with the type of problem. An excellent overall introduction is Root Cause Analysis: The Core of Problem Solving and Corrective Action by Duke Okes, 2009. Here are the first eight chapter titles:

1. Getting Better Root Cause Analysis

2. Multiple Causes and Types of Action

3. Step 1. Define the Problem

4. Step 2. Understand the Process

5. Step 3. Identify Possible Causes

6. Step 4. Collect the Data

7. Step 5. Analyze the Data

8. Identify and Select Solutions

Most material covers root cause analysis from the viewpoint of technical problems, like those in manufacturing and accidents. The concept, however, is very applicable to social problems.

The Extreme Difficulty of
Fixing Root Causes

On January 28, 1986 the Space Shuttle Challenger suddenly exploded 73 seconds into flight, killing the seven astronauts aboard. A root cause analysis was performed. Years later, here were the results: 3

“The Rogers Commission study of the Space Shuttle Challenger accident concluded that the root cause of the accident was an accumulation of organizational problems.

“Despite a sincere effort to fix these problems after the Challenger loss, seventeen years later almost identical management and organizational factors were cited in the Columbia Accident Investigation Board report. [The Space Shuttle Columbia disintegrated shortly before landing in 2003, killing all seven crew members.]

“These are not two isolated cases. In most of the major accidents in the past 25 years (in all industries, not just aerospace), technical information on how to prevent the accident was known and often even implemented. But in each case, the potential engineering and technical solutions were negated by organizational or managerial flaws.”

That's how hard it is to fix root causes for difficult social problems.

This explains why a formal process that fits the sustainability problem is required. Performing root cause analysis reliably and efficiently, which includes the solution working well over a long period of time, requires process driven problem solving.