consumption function

例句：

1. 1. The consumption function isa mathematical model that describes how people spendtheir income.
   消费函数是一种数学模型，描述了人们如何花费他们的收入。
2. 2. The economist usedthe consumption function to estimate the effect oftaxes on consumer spending.
   经济学家使用消费函数来估计税收对消费者支出的影响。
3. 3. The consumptionfunction is crucial for understanding the economic behaviorof individuals and households.
   消费函数对于理解个人和家庭的经济行为至关重要。