Marx and others had ever made systematic study on credit from the economics point of view, and pointed out that credit is a special form of value movement based on repayment.
马克思、恩格斯则对经济学上的信用作过系统研究，指出信用是以偿还为条件的价值运动的特殊形式。
The starting point of article lies in analysing the sponsor system based on the institution economics in order to study the sponsor system in deep layer perspective.
文章的出发点主要在于对保荐制度进行相关的制度经济学分析，以期对保荐制度进行深层透视。
Based on industry economics, study the power market performance evaluation.
从产业经济学的角度，对电力市场绩效进行研究。
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