c.
In which of the above situations, (a) or (b), is Sal better off? In terms of consumer
surplus, which situation do people in New York prefer and which do people in Los
Angeles prefer? Why?
Sal is better off in the situation with the highest profit. Under the market condition in
8a, profit is equal to:
= Q
NY
P
NY
+ Q
LA
P
LA
- (1,000 + 40(Q
NY
+ Q
LA
)), or
= (25)($140) + (40)($120) - (1,000 + 40(25 + 40)) = $4,700.
Under the market conditions in 8b, profit is equal to:
= Q
T
P - (1,000 + 40Q
T
), or
= (126.67)(65) - (1,000 + (40)(65)) = $4633.33.
Therefore, Sal is better off when the two markets are separated.
Consumer surplus is the area under the demand curve above price. Under the market
conditions in 8a, consumer surpluses in New York and Los Angeles are:
CS
NY
= (0.5)(240 - 140)(25) = $1250 and
CS
LA
= (0.5)(200 - 120)(40) = $1600.
Under the market conditions in 8b the respective consumer surpluses are:
CS
NY
= (0.5)(240 – 126.67)(28.3) = $1603.67 and
CS
LA
= (0.5)(200 – 126.67)(36.7) = $1345.67.
The New Yorkers prefer 8b because the equilibrium price is $126.67 instead of $140,
thus giving them a higher consumer surplus. The customers in Los Angeles prefer 8a
because the equilibrium price is $120 instead of $126.67.
*9. You are an executive for Super Computer, Inc. (SC), which rents out super computers.
SC receives a fixed rental payment per time period in exchange for the right to unlimited
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