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Daily demand for ski lift tickets is Qdt = 1200 - 5Pt for out-of-town tourists Q

ID: 1189845 • Letter: D

Question

Daily demand for ski lift tickets is Qdt = 1200 - 5Pt for out-of-town tourists Qdl = 900 – 10 Pl for locals There is only one ski run permitted by zoning in this market area, so it operates as a monopolist.

a. Derive the firm's total demand function, and graph it.

b. Find the monopolist's optimal output, and profit or loss, if a single lift ticket price is charged to all consumers. Assume the firm's cost function is TC = 20,000 + 20 q. (Hint: there are 2 possible solutions, check both)

c. If the firm could price-discriminate between these 2 types of customers, what would be the optimal lift ticket price for each type now? What would profit or loss be in this case?

Explanation / Answer

Q =1200-5P

P = 240-0.2Q

Q*=900-10P*

P*=90-0.1Q*

(a) Total demand=240-0.2Q+90-0.1Q*

Total demand = 330-0.3Q

When Q = 0, P=300

When P=0 Q =1100

(b) Monopolist produces where MR = MC

TC = 20000+20q

MC = 20

TR = 330Q-03Q2

MR = 330-0.6Q

MR = MC

330-0.6Q =20

310 = 0.6Q

Q = 516.66

P = 175

P=$175

Profit = TR-TC

Profit = 175 x 516.66 -20000-20x516.66

Profit = $60083.85

(c) MR=MC for out of twon

P = 240-0.2Q

PT=TR = 240Q-0.2Q2

MR = 240-0.4Q

240-0.4Q=20

Q=2200/4 = 550

P=$130

SImialrly for locls

MR = MC

90-0.2Q=20

Q =700/2 = 350

P= $55

Total profit = 55x350+550x130-20000-20x(350+550)

Total profit = $52750

The prfoits are lower with price discrimination