market concentration的缩写，意为市场集中度。
例句：
加入WTO对我国零售业市场集中度的影响分析及建议
The Variety and Consideration of the Market Concentration Degree of China's Retail Industry Under the Opening Condition
但是市场集中度（CR）却与经营绩效成负相关关系。
But the market concentration ( CR) shows a negative correlation with business performance.
结果表明，以HHI指数表示的市场集中度的提高对利润绩效和安全绩效的改善有着显著的影响。
The regression results show that the increase of HHI index which represents the market concentration has notable effect to profit performance and safety performance.
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