Suppose that demand decreases and supply decreases. What would you expect tooccur in the market for the good?
A. Both equilibrium price and equilibrium quantity would increase.
B. Equilibrium price would decrease, but the impact on equilibrium quantity would be ambiguous.
C. Equilibrium quantity would decrease, but the impact on equilibrium price would be ambiguous.
D. Equilibrium price would increase, but the impact on equilibrium quantity would beambiguous.
Many thanks.
Economic Question
2010-03-20 8:05 am
回答 (2)
2010-03-20 8:30 am
✔ 最佳答案
希望你會揀我做最佳問答啦 亦都希望你會覺得我幫到你
答案應該係C
首先講下點解啦!!
Equilibrum係Price=Quantity果一點
而果一點既P同Q就分別係E. price同E. quantity啦
依家問題預設既情況係Price同Quantity都係同時下跌既
至於邊個跌多d呢??題目冇講明bor
即係可以P跌>Q跌,Q跌>P跌 ,P跌=Q跌(一共有3個可能既cases)
如果唔清楚可以畫三幅唔同既diagrams黎睇下
因為Supply Curve同Demand Curve都係會shift left既
只係睇下邊個shift得多d
畫完之後你應該會發覺係三幅圖之中都會出現一個情況
就係Quantity一定會向左shift(Q1-->Q2)
但係Price就可以係不變,下跌或者上升啦!!
所以得出既結論就係Q一定decrease;P係uncertain(i.e.ambiguous)
希望你明我講咩啦!!
2010-03-20 8:35 am
The answer is C.
If you draw a D&S curve, you will notice that the equilibrium price is uncertain because of lack of information. However, since demand and supply both decrease, we can expect the equilibrium quantity will also decrease.
2010-03-20 00:45:02 補充：
001's answer is correct and his/her solution is in details. I see your question and believe it is for multiple choice. You may not have too much time to think for an answer during a test/exam. It is wise to take MY solution in your mind and 001's solution is for you study only.
If you draw a D&S curve, you will notice that the equilibrium price is uncertain because of lack of information. However, since demand and supply both decrease, we can expect the equilibrium quantity will also decrease.
2010-03-20 00:45:02 補充：
001's answer is correct and his/her solution is in details. I see your question and believe it is for multiple choice. You may not have too much time to think for an answer during a test/exam. It is wise to take MY solution in your mind and 001's solution is for you study only.
參考: me, no offense to anyone
收錄日期: 2021-04-27 15:38:41
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