The tough part was normalizing the results. We focused on isolating revenue that could be traced directly to consumer behavior; we also backed out revenue from mergers and acquisitions, revenue from sale of assets, and other windfalls.
Once we normalized the revenue data we used it to build models that calculated the compound annual growth rates (CAGR) for the ten companies from 2010 to 2015. We found that the CX leaders in all five pairs of companies outperformed their relative CX laggard counterparts.
In two industries, cable and retail, leaders outperformed laggards by 24 percentage and 26 percentage points, respectively. Even in the industry with the smallest spread, airlines, the CX leader enjoyed a healthy 5 percentage point advantage in global revenue. And when we compared the total growth rate of all CX leaders to that of all CX laggards we saw that the leaders collectively had a 14 percentage point advantage.
via Forrester Blogs Harley Manning