【摘要】 设 p=(p1，…， pn)T是 n种商品的价格向量， f(p)=(f1(p)，… ,fn(p))T是过剩需求量建立经济系统模型，用经济数学方法讨论了联合经营平衡价格的稳定性，得到若干数学结论，初步映证了经济行业专家的看法：为保证联合经营后的平衡价格具有稳定性，各加盟单体须具有某种结构上的共性更多还原

【Abstract】 Let p=(p1,… ,pn)T , prices vector on n sorts of goods, f(p)=(f1(p)，…， fn(p))T , excess demand vector. The economical system model =f(p) is established. By means of economical mathematics, we discuss the stability of equilibrium prices on combined economical systems and obtain some mathematical conclusions, so that the views of economics experts are preliminarily testified: In order to have stability of equilibrium prices on combined economical systems, the combined units require some generalites in structure.更多还原