基于差分方程的货运市场占有率模型

合理估计产品的市场占有率是企业做出营销决策时需要考虑的最重要的因素之一。总结国内外部分有关市场占有率的研究献；建立关于铁路、公路货运量在全社会货运中市场占有率的差分方程组模型，运算后得出铁路、公路货运在整个货运市场中的占有率将趋向相对稳定的结论；通过利用历史统计数据计算，验证了该模型的可行性。

Model of Market Share of Freight Traffic Based on Difference Equation Theory

It's one of the most important factors for enterprises to make marketing decision that the market share is properly estimated. We summarize partially some of the papers concerning market share. We also set up a difference equation model concerning market share of railway and highway and arrive at such a conclusion as that the market share of different transportation mode will be in a relatively steady state. A numerical value of the quotient is obtained by analyzing the data concerned. The feasibility of this model is proved by the calculation result.