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# 経済数学II 「第３章 経済学における均衡分析」

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### 経済数学II 「第３章 経済学における均衡分析」

1. 1. shito@seinan-gu.ac.jp 2020 4 30 • • • 1 P.44 3 ::::::::::::::::::::::::::::::::::: ⇓ 2 — (1) • 1 • P Qd Qs 1
2. 2. www.seinan-gu.ac.jp/˜shito 2020 4 30 14:48 Qd = 10 − 2P Qs = −8 + 4P P Q Qd = a − bP Qs = −c + dP P Q Qd = Qs = Qd = Qs ⇓ Q∗ d = Q∗ (a, b, c, d) Q∗ s = Q∗ (a, b, c, d) P∗ = P∗ (a, b, c, d)    Qd = Qs Q∗ () ! II 2
3. 3. www.seinan-gu.ac.jp/˜shito 2020 4 30 14:48 (2) (a) (b) (1) pp.41–49 (2) 3.2 1 3 3 — 4 2 1 Qd Qs (1) 2 2 2 1    Qd1 = a0 + a1P1 + a2P2 Qs1 = b0 + b1P1 + b2P2 Qd1 = Qs1 2    Qd2 = α0 + α1P1 + α2P2 Qs2 = β0 + β1P1 + β2P2 Qd2 = Qs2 II 3
4. 4. www.seinan-gu.ac.jp/˜shito 2020 4 30 14:48 1    Qd1 = a10 + a11P1 + a12P2 Qs1 = b10 + b11P1 + b12P2 Qd1 = Qs1 2    Qd2 = a20 + a21P1 + a22P2 Qs2 = b20 + b21P1 + b22P2 Qd2 = Qs2 ⇓ Q∗ di = Q∗ si = Q∗ i (a10, a11, a12, b10, b11, b12, a20, a21, a22, b20, b21, b22) P∗ i = P∗ i (a10, a11, a12, b10, b11, b12, a20, a21, a22, b20, b21, b22) where i = 1, 2. Q∗ i P∗ i II 4
5. 5. www.seinan-gu.ac.jp/˜shito 2020 4 30 14:48 (2) n n n Quiz Qdi = Qsi = where i = 1, 2, · · · , n. ⇓ II 5
6. 6. www.seinan-gu.ac.jp/˜shito 2020 4 30 14:48 (3) = ⇑ 2 (a) 1 (b) 5y = 4 + 2x 15y − 1 = 11 + 6x =⇒ =⇒ • pp.55–64 • p.4 2 • 3.5 45 II 6
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Apr. 13, 2021

May. 7, 2020

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