Category: mathematics


Research shows that rich does not = smart. Interesting association between cognitive ability and annual income. The borderline is an annual income of 7.5 million yen.

【Research shows that rich people are not necessarily smarter】   ・In this study, the subjects were 670,203 citizens between the ages of 18 and 60 who held some kind of job between 1991...


An “indicator of affluence” is being constructed and proposed as an alternative to GDP. How to deal with indicators.

【At last, an “index of affluence” will be constructed in earnest to replace GDP.ーspecial feature「THE WORLD IN 2023」】   ・UN Secretary-General Antonio Guterres called for an end to the use of GDP as...