假设未来预期收入保持不变，画一个以家庭消费与库存现金的函数图---库存现金等于目前的收入加上流动资产。
Suppose we were to graph a household's consumer spending as a function of cash-on-hand, which equals current income plus liquid assets, holding constant expected future income.
笔者认为，需求是收入的函数，收入不同的群体其需求水平也不同，而各收入群体的消费需求即构成总消费需求。
The authors argue that demand is a function of income. Groups with different income have different levels of demand, which constitutes the aggregate consumption demand.
在乘数理论、均衡收入理论等方面对消费函数进行了进一步的改进与分析，以使其更加接近实际情况。
This paper makes further improvement of and analysis on the consumption function from multiplier theory and balance revenue theory in order to make it approach the practical situation.
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