“Average Management Scores by Country,” manufacturing only, here are the rankings from Nicholas Bloom, Raffaella Sadun, and John Van Reenen:
1. United States
6. Great Britain
That puts Mexico ahead of Singapore, New Zealand, Republic of Ireland, Chile, Spain, China, and many other nations. I do in fact believe this result, but of course that means Mexico’s other problems must be correspondingly more severe than one might have thought.
Here are various copies of their paper “Management as a Technology.”