The 80/20 principle - The secret of achieving more with less

The 80/20 principle by Richard koch

What is 80/20 principal?

The 80/20 Principle asserts that a minority of causes, inputs or effort usually 

lead to a majority of the results, outputs or rewards. Taken literally, this 

means that, for example, 80 per cent of what you achieve in your job comes 

from 20 per cent of the time spent. So the 80/20 Principle states that 

there is an inbuilt imbalance between causes and results, inputs and outputs, 

and effort and reward. 

To Applying 80/20 principle 3 steps will be follow in life

Step 1: Identify your 80/20 goals

Step 2: Identify Your 80/20 Path

Step 3: Identify your 80/20 tasks

Book review of 80/20 principle

This has been the most painful and well-researched book I have ever 

written. There is a certain irony here, since the 80/20 Principle tells us that I 

could have obtained a book 80 per cent as good in 20 per cent of the time. 

This would certainly have been my inclination and only the reader can tell 

whether the extra effort has been worthwhile. I think it has, but I have lost 

all objectivity. The effort involved has been much more collective than for 

any of my previous books. Don’t believe the false modesty of those who 

write generously that their books have been ‘team efforts’. In the end only 

an author (or authors) can write a book. But I want to thank some 

individuals without whom this book would either not have existed or would 

have been vastly inferior. 

First is Mark Allin, then at Pitman Publishing and now my partner in 

Capstone Publishing, who first had the idea of the book. 

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Second is Nicholas Brealey. He has put terrific insight into the book. I am 

glad that the sales are rewarding this! According to the Von Manstein 

principle (see Chapter 13), people like Nicholas who are smart and 

industrious will not be as successful as those who are smart and lazy. To 

become a real star, Nicholas must work a great deal less. I have a theorythat if he published half the number of books, and put all his effort into 

these, he’d make even more money. I hope my next book will not be one to 

get the axe! I am very grateful for his persistence on this book. 

Sally Lansdell has been the ‘third person’ collaborating to get the 

structure and text right. She is clearly a gifted publisher in her own right. 

Next, my researcher on the book, Nick Oosterlinck, did a terrific job of 

reconstructing the history of the 80/20 Principle from 1897 to 1997. He has 

now disappeared from my radar screen, but if he would like to get in touch I 

would be delighted to dispense some champagne his way. 

I should also thank not only Mr Pareto for originating the 80/20 Principle, 

but also Mr Juran, Mr Zipf, Mr Krugman and the unsung heroes at IBM in 

the 1960s for elaborating it. And also the hundreds of people from all walks 

of life and disciplines who have written magazine articles about the 80/20 

Principle, many of whom I have quoted extensively as evidence of the way 

in which the principle can be used. I have made every effort to acknowledge 

these people in the references, but if there are any omissions please accept 

my apologies and let me know so that correction can by made in any future 

editions. I am particularly grateful to David Parker, lecturer in managerial 

economics and business strategy at the University of Birmingham Business 

School, whose work on the application of chaos theory to business strategy 

is full of brilliant insights, many of which I have appropriated. 

Finally, every true believer needs his trusted sceptics. Patrick Weaver and 

Lee Dempsey have fulfilled this role admirably, and it is much appreciated.

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