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CFDs are complex instruments. 75% of retail client accounts lose money when trading CFDs, with this investment provider. You can lose your money rapidly due to leverage. Please ensure you understand how this product works and whether you can afford to take the high risk of losing money.
CFDs are complex instruments. 75% of retail client accounts lose money when trading CFDs, with this investment provider. You can lose your money rapidly due to leverage. Please ensure you understand how this product works and whether you can afford to take the high risk of losing money.

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Concentration ratio 行業集中度指數定義

一個行業的集中百分比,指行業內特定公司所占的市場份額。通常用於評估一或多家公司在行業中的主導地位。

通常在經濟研究和報告中常涉及行業集中度,并以方程式的形式體現。行業集中度中,CR的上標表示計算的公司數量。常見的行業集中度為CR4和CR8,指示行業中最大的四家或八家公司,與行業中其餘公司相對產出比。同理,CR1指行業中最大的公司的相對規模。

CR 為一個百分比,0%表示其與其他公司相比,競爭力相同,而100%代表該公司在行業中具有絕對壟斷(當CR1=100),如果同時評估更多家公司則為寡頭壟斷。

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