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批踢踢實業坊 Examination 板
 
[問題] 經濟學個經題目
Jan 11th 2015, 00:17, by alfredgod

作者alfredgod (小江湖)

看板Examination

標題[問題] 經濟學個經題目

時間Sun Jan 11 00:17:26 2015

題目：市場僅有ab兩家廠商，市場需求分別為： Da : Pa=120-4Qa-Qb Db : Pb=90-4Qa-Qb 成本函數分別為 TCa=20Qa TCb=12Qb 若a廠商市占率75% 求ab的產量Q? 解答是用 Qa=3Qb MRb=90-26Qb = MCb=12 下去算 我想問的是我用120-26Qa=20 也就是第一條下去算為什麼不行? 算出來答案不一樣.... 懇請高手解惑，謝謝! -- ※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 114.39.106.133 ※ 文章網址: http://www.ptt.cc/bbs/Examination/M.1420906651.A.4AD.html

推 lovewhite: Qa=3Qb => Qb=1/3Qa 01/11 00:43

推 lovewhite: 恩 這樣答案也是不對 @@ 01/11 00:49

推 toy4500809: 不知道怎麼解釋XDD 應該跟B是FOLLOWER有關 01/11 00:53

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