一方面，这个问题部分归咎于现有的财富分布不均。
For one thing, the problem is partially attributed to the present disparity of wealth distribution.
基于前三章，本文于第四章提出了引入回扣的财富分布模型。
Based on the three chapters above, in the fourth chapter, the wealth distribution model with the kickback rate is proposed.
开展这方面的研究，可以了解回扣这种现象对社会财富分布的影响。
By the studying about this aspect, we can learn the effect of kickback on the social wealth.
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