What fraction of population in other nations must be smart enough to compete with Japan? (If all the other conditions are considered to have same impacts. )
If 50% of Japanese people are competitive, then
China needs only 4.7%
UK 100.2% of their population to compete with with Japan. This idea disproportionally favors populous nations. Smaller nations may be able to reach effective national policies more easily and have less people to feed. Many none competitive people surely drive their nations downward even though they may be good consumers. Interaction and collaboration between nations and many factors make the definition of national competitiveness more bluer.