Question #298250

Consider a market where supply and demand are given by Qx s = -16+Px and Qd=92-2Px suppose the gouvernment imposes a price floor of $40, and agrees to purchase any and all units consumers do not buy at the floor price of $40 per unit. determine the cost to the gouvernment of buying firm's unsold units. Compoute the lost social welfare (deadweight loss) that stems from the $40 price floor


1
Expert's answer
2022-02-16T13:13:57-0500

Government cost of unsold units

QS=Px16Q_S=P_x-16

Qd=922PXQ_d=92-2P_X

Initial equilibrium points:

Px16=922PxP_x-16=92-2P_x

Px+2Px=92+16P_x+2P_x=92+16

3Px=1083P_x=108

Px=36P_x=36 QS3616=20Q_S\to 36-16=20 Qd922(36)=20Q_d\to 92-2(36)=20

Price Floor (Pf)=$480(P_f)=\$ 480

Qs=4016=24Q_s=40-16=24

Qd=922(40)=12Q_d=92-2(40)=12

Unsold units = 2412=1224-12=12

Cost of unsold units= 12×40=$48012 \times 40=\$ 480

Cost of unsold units= Government cost = $ 480


Dead-weight loss

=(Qd atPx=36)(Qd at Px=40)(Q_d\ at P_x=36)- (Q_d\ at\ P_x =40)

= 2010=1020-10=10

cost = 10×40=$40010\times 40=\bold{\$400}


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