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Concentration degree
Economic terms
Concentration is right
Central business district
A street-by-street approach to retail sales using street sales
Durable goods
The building area of the store occupies the building area of the central business district
percent
Divide by street sales
Convenience goods
Expressed as a percentage of the building area of the store in the central Business District.
- Chinese name
- Concentration degree
- Foreign name
- concentration ratio
- Contrast image
- Central business district Retail business
- nature
- method
catalogue
concentration ratio Concentration ratio
In an industry, several of the largest firms account for the output of that industry
Gross output
The percentage of. A typical measure is
Fourth, enterprise concentration
That is, the output of the four largest firms as a percentage of total output. Absolute concentration reflects the degree of monopoly in an industry.
in
Calculation formula
Concentration is often written in the form of CRn. CR is short for concentration ratio, where n represents the proportion of the sum of the largest n terms.
For the book market, concentration is used to represent this class
Market competition
The degree of intensity or monopoly, generally expressed by CRn, such as
CR4
, CR10, etc.
A certain period range and
Sales territory
In the ranking list of books/publishers, etc., the ratio of the top n books /n publishing houses to the value of the item and the sum of all projects in the same period.
CRn=∑(1-n)/∑(1-N)
N is the total item, n is the TOP n item in statistics, and CRn is the proportion of the sum of the top n items.
Within a certain period and sales area, the publishing house is sold
yardage
The total sales volume of the TOP60 publishing houses in the list accounted for the same period
Book market
The ratio of total yards to ocean.
This is equivalent to the ratio of the market share of the top 60 publishers in the list (expressed as a percentage) to the total market share of the book market during the same period (100%).
The concentration of the market share of publishing houses CR60 is a common index that reflects the competitiveness of the largest 60 publishing houses and their changes.
