. The firm's total cost function is TC(q)=1/4q2 Demand in US is Q=100-2Pa Demand in Canada is 100-4Pc. What is the price for each country?
Given,
Differentiating the above equation wrt Q we get
MC = 0.5Q
Demand in US is given by
Now determine the total revenue = PQ
Differentiate TR wrt Q we get
In order to maximize profit firm must equate MR to MC
50 - Q = 0.5Q
1.5Q = 50
Q = 33.33 units
Pa = 50 -0.5Q=50 - 0.5*33.33 = $ 33.33 per unit
Similarly we can solve for Canadian market
Given, Q = 100 - 4Pc
Pc = 25 - 0.25Q
TRc = 25Q - 0.25Q2
MRc = 25 - 0.5Q
Now equate MRc to MC
25 - 0.5Q = 0.5Q
Q = 25 units
Pc = 25 -0.25Q = 25 - 0.25*25 = $ 18.75 per unit.
Price in US = $ 33.33 per unit
Price in Canada = $ 18.75 per unit.
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