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Will Mediocrity Triumph? The Fallacy That Will Not Die

Economist claims: It is a fundamental economic truth that businesses converge to mediocrity. Is he right?

Nearly 100 years ago, a famous economist named Horace Secrist wrote a book with the provocative title, The Triumph of Mediocrity in Business. He had spent ten years collecting and analyzing data on the success of dozens of companies in dozens of industries during the years 1920 to 1930. For each measure of success, he used the 1920 data to divide the companies in each industry into quartiles: the top 25%, second 25%, third 25%, and bottom 25%. He then calculated the average value of the success metric for the 1920 top-quartile companies every year from 1920 to 1930. He did the same for the other three quartiles. In every case, the companies in both the top two quartiles and the bottom two…