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.
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。
An electricity demand function is put forward according to the linear expenditure model. This paper also calculates electricity income elasticity and price elasticity.
根据扩展线性支出系统理论建立电力消费的需求函数，并对居民电力消费需求的收入弹性、价格弹性进行定量分析。
An electricity demand function is put forward according to the linear expenditure model. This paper also calculates electricity income elasticity and price elasticity.
根据扩展线性支出系统理论建立电力消费的需求函数，并对居民电力消费需求的收入弹性、价格弹性进行定量分析。
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