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。
Consumption ratio and its change is a key aggregate index, which reflex the state of national economy.
消费率及其变动是反映国民经济运行状况的重要宏观经济指标。
The forecast for steel consumption is tied in with that for an aggregate economic variable.
钢铁消费预测与总的经济变量预测紧密相联。
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