求均衡价格和均衡数量,你会吗?

如题所述

Qd=Qs
14-3p=2+6p
9p=12
均衡价格baip=4/3
Ed=-(△Q/duQ)/(△P/P)
=-P/Q*dQ/dp
=-[p/(zhi14-3p)]*(-3)
=[4/3/(14-12/3)]*3
=4/(14-12/3)
=4/10=0.4
Es=(△Q/Q)/(△P/P)
=P/Q*dQ/dp
=p/(2+6p)*6
=[4/3/(2+8)]*6
=8/10=0.8
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