105身障四等-經濟學 - 考試
By Hedy
at 2016-06-12T17:52
at 2016-06-12T17:52
Table of Contents
第49題
依據生產函數的資本報酬遞減的特性推論,在其他條件不變之下,
若一國累積更多的資本,則其每人實質GDP的成長率會如何變化?
想法:
根據題目,用的生產函數模型應為 Y = A*N^α*K^(1-α)
每人實質GDP = Y/N = y
每人實質GDP成長率 = dy/y = dY/Y - dN/N
= dA/A + α*dN/N + (1-α)*dK/K - dN/N
其他條件不變,資本累積,dA/A=dN/N=0,dK/K > 0
= (1-α)*dK/K > 0
可是為甚麼答案是下降,請問我哪邊推理有誤嗎?
--
依據生產函數的資本報酬遞減的特性推論,在其他條件不變之下,
若一國累積更多的資本,則其每人實質GDP的成長率會如何變化?
想法:
根據題目,用的生產函數模型應為 Y = A*N^α*K^(1-α)
每人實質GDP = Y/N = y
每人實質GDP成長率 = dy/y = dY/Y - dN/N
= dA/A + α*dN/N + (1-α)*dK/K - dN/N
其他條件不變,資本累積,dA/A=dN/N=0,dK/K > 0
= (1-α)*dK/K > 0
可是為甚麼答案是下降,請問我哪邊推理有誤嗎?
--
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考試
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