Two airlines compete in prices. The can differentiate the product so that their respective demand functions look like
Qa=4000-25Pa+12Pb
Qb=3000-20PPa
AVCa=MCa=160
AVCb=MCb=180
profit functions are
πa(Pa,Pb)=(Pa-160)(4000-25Pa+12Pb)
πb(Pa,Pb)=(Pb-180)(3000-20Pb-10Pa
Reaction functions are
Pa=160+(6/25)Pb
Pb=165+(1/4)Pa
(2 points) Use this information to draw each firms reaction function. (Hint: let pA be on the horizontal axis and pB in the vertical axis) | |||||||||||||
(3 points) Find the Nash equilibrium choice of prices. |
a)
Pb | Pa=160+(6/25)*Pb |
0.00 | 160.00 |
50.00 | 172.00 |
100.00 | 184.00 |
150.00 | 196.00 |
200.00 | 208.00 |
218.09 | 212.34 |
250.00 | 220.00 |
Pb=165+(1/4)*Pa | Pa |
165.00 | 0.00 |
177.50 | 50.00 |
190.00 | 100.00 |
202.50 | 150.00 |
215.00 | 200.00 |
218.09 | 212.34 |
227.50 | 250.00 |
b)
We are given
Pb=165+(1/4)*Pa
Set Pa=160+(6/25)*Pb
Pb=165+(1/4)*[160+(6/25)*Pb]=165+40+(3/50)Pb
(47/50)Pb=205
Pb=(205*50/47)=$218.0851 or say $218.09
Pa=160+(6/25)*Pb=160+(6/25)*218.0581=$212.3409 or say $212.34
Two airlines compete in prices. The can differentiate the product so that their respective demand functions...
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