Kwan ho : 想問下00年 10b(ii)(II) Assume Bank X does not know that Bank Y has a huge amount of hidden debt. Explain whether this would affect the opportunity cost of the takeover to Bank X.佢個答案係no 但我唔太明, 佢話由於果個係chosen option, not option forone, 所以唔關事, 但我記得之前見過條問題話concert ticket=$300, 幫人補習可以earn$200, 咁睇concert既opp. cost =$500, lee個例子唔係同上面一樣咩, 我既理解就係:如果bank X 唔收構bank Y咁就唔洗還hidden debt所以d debt都應該加埋入opp. cost點解我錯?????
Kwan ho,
從你舉concert ticket例子反映你掌握到full cost 呢個concept, 同學想重温full cost嘅應用可以去睇番會考經濟(10/05/2007) kalayee問, 你响concert ticket例子嘅理解係正確, 不過呢個例子唔同 CE00-B10(b)(ii)個case , 同學要明白有choice (選擇), 就有opportunity cost (機會成本), 如果make decision (做決定)時有 choice, 以concert ticket為例子, choice = 睇concert, 係要同時犧牲ticket price ($300) 兼income forgone (賺唔到concert期間果$200補習收入), 所以full cost = $300 + $200 = $500.
睇番CE 00-B10(b)(ii), 如果小心審題嘅話 應該留意到Assume Bank X does not know that Bank Y has a huge amount of hidden debt (假設X銀行並不知道Y銀行有一筆隱藏的巨額欠債), 題目講明响佢make decision on takeover (作收購嘅決定)果陣冇得考慮埋hidden debt呢個因素, 如果 Bank X 一早知 Bank Y 欠人巨債嘅話, 敢Bank X收購Bank Y 嘅opportunity cost 就會高好多, 甚至有機會放棄收購計劃。
經濟友俾多一個application 同同學分享一下。放咗學你打算搭巴士返屋企, 果日好黑, 等咗成粒鐘都未有巴士嚟, 於是你考慮搭地鐵, 唔再等巴士喇。好多同學會諗住opportunity cost = 地鐵車費 + time cost (時間成本), 即為等巴士而冇咗一粒鐘嘅代價, 錯喇! 因為响決定一係搭巴士, 一係去搭地鐵果陣, 之前冇咗果一粒鐘唔會影响你嘅choice, 即唔會影响你future decision making , 無論你選擇搭巴土, 或選擇搭地鐵, 呢一粒鐘都已經冇咗, 呢個係sunk cost (F6 Econ 會學架喇)。除非巴士站站長話俾你聽, 架巴士仲有30mins就到, 敢考慮揀搭巴士或地鐵時, 搭巴士嘅opportunity cost就要計埋巴士車費 + 將要等30 mins 嘅time cost 喇! 明白嗎?
Remark: 應屆會考生响time cost嘅題目 (即 07-B10 (c))表現勁差, 大部份考生唔識應用time cost落題目度, 亦有好多考生睇錯part (ii)問題, 經濟友遲d 再同大家分享今年份卷嘅賽後報告同預測2008有咩題目翻炒啦!
經濟友
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