3#
大 中
小 發表於 2015-10-31 02:58 AM (第 3119 天)
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呢條睇你識唔識高考經濟定義的。。。。
C = Consumption
C bar = autonomous consumption
c = propensity to consume
S = Saving
S bar = autonomous saving
s = propensity to save
Yd = disposal income
C = C bar + c * Yd
S = S bar + s * Yd
disposal income can either be consumed or saved
Yd = C+S
So
C bar = - S bar
c+s = 1
If Yd = 0
C = C bar
S = S bar
C bar must be > = 0
S bar must be < = 0
Answer is therefore "None of the above"