A) P = 1600-5Q
MR = 1600-10 Q
At monopoly eqm, MR = MC
1600-10 Q= 100+5Q
1500 = 15Q
Q* = 100, P* = 1600-500 = 1100
2.2) socially optimal eqm
SMC = PMC + MEC
= 100+5Q + 2.5 Q
= 100+7.5Q
Then at eqm :
PMB = SMC
1600-5Q = 100+7.5Q
1500 = 12.5Q
Q* = 1500/12.5 = 120
2.3) graph
2.4) at Q=100, SMC = 100+7.5*100 = 850
deadweight loss =
.5*(1100-850)*(120-100)
= 250*20*.5 = 2500
Answering only first four parts as per HomeworkLib policy
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