The Pareto Principle; 80/20 Rule
Tuesday, 28th August, 2007
I read this book several years ago, and enjoyed it enough to also purchase Koch’s The Natural Laws of Business: How to Harness the Power of Evolution, Physics, and Economics to Achieve Business Success.
Everyone is familiar with the “80/20 Rule” (also known as the Pareto Principle): Typically, the example used is that 80% of your sales will come from 20% of your customs:
“Pareto noticed that 80% of Italy’s wealth was owned by 20% of the population. He then carried out surveys on a variety of other countries and found to his surprise that a similar distribution applied. It also applies to a variety of more mundane matters: we wear our 20% most favoured clothes about 80% of the time, we spend 80% of the time with 20% of our acquaintances etc….” (from the Wikipedia article).
It is one of those “natural laws” so applicable to business decisions that is helpful to keep in mind throughout life. I’m sure that 80% of my income came from 20% of my clients–and 80% of the aggravation also came from 20%. The search for that important 20% is what success is all about. (I’m going to guess, although I haven’t done the analysis yet, that 80% of my stock profits have come from only 20% of my picks…)
The second book was Koch’s effort to find other “natural laws” that are applicable to business and investing. I only remember one, but was particularly impressed with its proposition: that a doubling of experience results in about 20% improved efficiency. That is, a person (or rat in a maze) is going to be able to get things done in 80% of the time once he has doubled his experience.
I think there’s a lot of truth to that. If I was starting over as a lawyer right now (instead of retiring in a month after 31 years), I would do even more free pro bono work at first just to get that experience. The increased experience and efficiency is going to pay off in the long run.
And a great way to get very worthwhile “experience”: Read more books, people!


