Understand the use of contribution margin analysis and other planning and decision making tools.

了解利润的贡献分析和其他规划和决策工具的使用。

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There are less analysis of the connection between customer loyalty and customer contribution. There is almost no research on the relationship between customer loyalty and contribution of credit card.

对于客户忠诚度与客户贡献度相关关系的分析，无论国内国外研究均较少，对于信用卡客户忠诚度与贡献度相关性分析方法的研究几乎没有。

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Because of the numerical analysis of the basic contribution.

由于在数值分析方面的基础性贡献。

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Because of the numerical analysis of the basic contribution.

由于在数值分析方面的基础性贡献。

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