This measurement is relative. Does it indicate decline in Europe or development in Asia? It's unreasonable to expect a region with 1/16 of the world population

This measurement is relative. Does it indicate decline in Europe or development in Asia? It's unreasonable to expect a region with 1/16 of the world population to have 4/10 of the largest companies in the long term. Also, is "company size" really that good a measure of economic success? Seems like it could have to do with the local conditions encouraging smaller economic entities.