按家庭预算建立需求函数的数学模型

Building a Mathematical Model of Demand Function According to a Family's Budgets

对同一个家庭 ,对其不同年份的预算进行比较 ,选择价格P和收入 y因素对需求商品量Q的影响 ,建立需求函数的数学模型 ,弥补了人们只关注不同收入水平的不同家庭 。

After comparing the budgets of different years in the same family ,we opted for the influence of the factors such as the price(P)and the income(y) on the demand commodity quantity (Q),then built a mathematical model of demand function in this article .Through the model building .we could cover the shortage of seeking the demand function only according to the dissimilar families' budgets with different revenue levels