我想問下幾時要+埋supply curve落個graph度???

2008-08-26 5:10 am
我想問下幾時要+埋supply curve落個graph度???

姐係咁,,,成日見到d pastpaper得demand curve但係明明 supply 無變到佢個marking scheme都無畫埋落去.??點解?

好似2005 ce section B Q9a咁
The western harbour crossing has no traffic congestion problem. IN july2004,its tolls increased.

(a)with the aid of a diagram,,explain under what condition an increase in the tolls would increase the sales revenue of the tunnel company.

點解ans無畫埋supply curve???
咁其實幾時先要畫??


百萬個感激=)

回答 (2)

2008-08-27 6:12 am
✔ 最佳答案
只有demand curve既情況:
在需求和供給不變的情況下,只係價格有所變動

通常呢d題目會問,如果xxx加價/減價,在什麼情況下,總收入(TR)會上升/下跌,
咁o係幅圖就要講條demand curve係乜野彈性


圖片參考:http://tw.yimg.com/i/tw/ugc/rte/smiley_6.gif
答返你條問題先,點解05年9a唔使畫supply curve??

2005 ce section B Q9a咁
The western harbour crossing has no traffic congestion problem. IN july2004,its tolls increased.

(a)with the aid of a diagram,explain under what condition an increase in the tolls would increase the sales revenue of the tunnel company.

ans: 上面間左d重要字眼
通行費上升,假如western harbour既Ed<1
P上升% > Q下跌%
=> sales revenue上升

有唔明你再問~
2008-08-27 8:08 pm
哦,,,明哂啦.吾該哂
=))))))))))))))))


收錄日期: 2021-05-03 13:22:58
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080825000051KK03041

檢視 Wayback Machine 備份