The famous scientist and historian of science Price puts forward that if K represents the number of people involved in a certain professional field, then the square root of this number is roughly equal to the number of top-ranked people who have contributed half of the field.
According to the above definition, which of the following is in line with Price's point of view?
A country's publishing association has counted the country's journals and found that there are about 150 economic-related journals, of all economic-related scientific research papers, half of them are published in 13 journals.