Re: [問題] 中央產經
※ 引述《stephanie012 (隱函數)》之銘言：
: 有幾題選擇題想討教:
: 1. The demand curve for a unique product without substitutes is
: a. upward sloping
: b. downward sloping
: c. vertical
: d. horizontal
: 我選c 參考解答是b
P
│ ╲ downward sloping
│ ╲ 商品越貴你越不想買它
│ ╲ 價錢便宜你會多賣，價錢貴則少買
│ ╲ Demand 符合一般情形
│ ╲
└───────Q
P
│ │
│ │ vertical
│ │ 你不計任何代價要買到特定的商品量
│ │
│ │Demand
└───┴───Q
: 2. "Given the long run implication of Solow's growth model with respect to
: the rate of savings, the low savings rate in Taiwan is not a problem."
: This statement overlooks that over time it appears that
: a. total factor productivity(TFP) and the growth rate of capital per person
: are inversely related.
: b. TFP and the growth rate of capital per person are positively related.
: c. TFP and the difference between the growth rates of capital per capita and
: population are not related.
: d. saving rates and per capita growth rates are inversely related.
: e. saving rates and per capita growth rates are not related.
: 這題在考古題出現好多次
: 但參考解答的答案皆不同
: 我找到的答案是c
: 有人可以解釋一下這題到底想問什麼嗎?
: 煩請各位高手解答 謝謝!
Ｙ＝Ａ*Ｋ^(1-α)*Ｌ^(α)
Ａ:total factor productivity(TFP)，負責解釋投入(K、L)之外的因素
所以A和K及L無關，所以和capital per person既不是inversely related
也不是positively related
c:就是無關啊，正確
資本成長=(saving rate * Total Putput)-(depreciation rate*Total Capital)
新投入的資本 資本的折舊
saving rate越高，資本成長越多，capital growth rate 越高
所以是postively related，不是inversely related或not related
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