Figure 9
From: Allotaxonometry and rank-turbulence divergence: a universal instrument for comparing complex systems
Allotaxonometric comparison of publicly traded US companies in 2007 and 2018 by fourth quarter market capitalization with corrections for Berkshire Hathaway and DowDuPont Inc. To be compared with Fig. 8. The 2018 market caps for both these companies were recorded incorrectly in the original data set. The revised allotaxonograph shows Berkshire Hathaway—which in fact rose to \(r=5\) in 2018—now appears prominently on the right hand side of the histogram and the contribution list. DowDuPont Inc’s corrected rank for 2018 means that it did not contribute as strongly, and now no longer appears in the top 40 contribution list. These changes aside, the allotaxonograph is largely identical to that of Fig. 8. The rank-divergence is unchanged at \(D^{\mathrm{R}}_{1/3}=0.411\)