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-> Ziel GG

Xn = 200 - 2P
Xa = 10 + 3P
a) x*, P*      b) E(p, Xn) im GG           c) Wo ist Preiselast. d. Nachfr.?

a) 200 - 2P = 10 + 3P       =>      5P = 190   =>   P = 38
-> Xn = 200 - 2* 38 = 124

b) E(Xn, p) = deltaXn/ delta p * p/x

-> Xn ableiten -> -2 * p/x  => -2 * 38/124 = 19/31   (immer positiv)

c) -2 * p/x = -1              => 2 * P/ (200-2P)  = -1

P = 50