a) Price forcast for next year------
Where Qd=Qs
25000-5000p+25M. = 240000+5000P-2000pI
As,M=$10000& PI= $20,putting these values in equations----
25000-5000P +25(10000). = 240000+5000P-2000(20)
275000-200000=10000P
P= 7•5$
price forcast for next year=$7•5
b)profit maximising output for company is determined where marginal revenue( MR) equals marginsl cost ( MC)
Finding MC-----
TC(Q)=6000+14Q-0•008Q²+•000002Q³
MC=derivative of TC(Q)-----
MC=14-2(•008)Q+3(•000002)Q²
13•984+•000006Q²
Finding MR-------
Q=275000-5000P
(p after puttingM=10000)
Or
P= 55-(1/5000)Q
As ,TR=AR×Q---
PQ= 55Q-(1/5000)Q²
MR = derivative of TR-----
MR= 55-•0004Q
We know ,at profit maximising point of output ----
MR=MC
55-•0004Q= 14-•016Q+•000006Q²
•000006Q²-•0156Q-41=0
Using quadratic equations ,
-b±√b²-4ac/2a
We get Q= 4050 units
profit maximising output = 4050 units
C)firm' s profit/ loss will be ----: TR-TC
Putting value of Q in TR & TC equations-----
TC= 6000+14(4050)-•008(4050)²+•000003(4050)³
TC= 58340$
TR=
55Q-1/5000(Q)²
55(4050)-1/5000(4050)²
TR= 219470$
Profit= 219470-58340=$161130
profit=$161130
d) yes, the firm will stay in the industry in the long run.,as in the long run ,its prices will occur at minimum of AC.
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