AP 2024 微觀經濟 FRQ 解析

考情分析 -- Set 1

本次放出的兩(liang) 個(ge) set中set 1考題難度小於(yu) set 2考題難度。Set 1的題目比較常規。第一道大題考察了之前選擇題中出現過的，完全競爭(zheng) 市場作為(wei) price takers無法改變價(jia) 格的結論。

第二道大題考察了外部性與(yu) 價(jia) 格天花板的結合，比較綜合，但屬於(yu) 常規題型。第三題的game theory考法與(yu) 本次CB放出的session 8最後一題的思路基本一致，也屬於(yu) 中等難度題。

考情分析 -- Set 2

Set2中第一大題的(a)題的最後一問與(yu) 往常的economic profit不同，考察了consumer surplus的圖像，如果沒有仔細看容易出錯；(b)題考察了marginal revenue與(yu) total revenue的關(guan) 係，需要對公式和知識點有比較好的理解才能進行回答；(c)題考查的也是最近命題熱點，關(guan) 於(yu) perfect price discrimination的定義(yi) 和結論；最後一小題則是通過對background information的閱讀理解來考察了影響彈性的因素。

第二大題出現的對quantity變化不為(wei) 1的情況下MC的計算也是一個(ge) 易錯點。而第三大題中per-unit subsidy在市場中如何引發deadweight loss的內(nei) 容考察了學生對於(yu) 課本上per-unit tax的圖像舉(ju) 一反三的能力。

Set1

Set 1, question 1

Answer(a).

(b).If a perfect competitive market, firms are price takers. If a firm raises its price to $15, whichis higher than the market price, $14, it will lose all its customers, causing its revenue drops to 0.(c).The demand of soybean, as a derived demand, will increases.(d).Increase. As the demand curve shifts to the right, price will also increase. Economic profit = (Price -ATC) x Q > 0 and there is no barrier to entry, so new firms will enter into the market in the long run.(e).

Set 1, question 2

Answer(a).

(b).

(c).

(d).No. The new quantity is 200 (Pc = MPC), which is less than the origin quantity, 300, and will exacerbate underproduction.Set 1, question 3

Answer(a).Power, because $35 > $ 28.(b).No. If FC chooses Reliability, NR will choose Comfort ($30 > $10); If FC choosesPower, NR will choose Safety ($32 > $25).(c).Yes. Except (b), if NR chooses Safety, FC will choose P ===> ($32, $35)(d).($30, $40) because the sum is the greatest = $70.(e).

Set 2

Set 2, question 1

Answer(a) &(b).

(c).

(d).

Set 2, question 2

Answer

(a).

(b).

(c).

(d).

(e).

Set 2, question 3

Answer

(a).

(b).

(c).