A residential community has 100 residents who are concerned about security. The accompanying table gives the total cost of hiring a 24-hour security service as well as each individual resident's total benefit. Total individual benefit to each resident Quantity of Security Guards Total Cost $0 $0 1 150 10 300 16 3 450 18 4 600 19 a. Explain why the security service is a public good to the residents. b. Calculate the marginal cost, the individual marginal benefit for each resident, and the marginal social benefit. c. If an individual were to decide about hiring and paying for security guards on his or her own, how many guards would that person hire?
A residential community has 100 residents who are concerned about security. The accompanying table gives the total cost of hiring a 24-hour security service as well as each individual resident's total benefit. Total individual benefit to each resident Quantity of Security Guards Total Cost $0 $0 1 150 10 300 16 3 450 18 4 600 19 a. Explain why the security service is a public good to the residents. b. Calculate the marginal cost, the individual marginal benefit for each resident, and the marginal social benefit. c. If an individual were to decide about hiring and paying for security guards on his or her own, how many guards would that person hire?
Chapter1: Making Economics Decisions
Section: Chapter Questions
Problem 1QTC
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Question

Transcribed Image Text:A residential community has 100 residents who are concerned about security. The accompanying
table gives the total cost of hiring a 24-hour security service as well as each individual resident's
total benefit.
Total individual benefit to each
Quantity of Security Guards
Total Cost
resident
$0
$0
1
150
10
2
300
16
3
450
18
4.
600
19
a. Explain why the security service is a public good to the residents.
b. Calculate the marginal cost, the individual marginal benefit for each resident, and the marginal
social benefit.
c. If an individual were to decide about hiring and paying for security guards on his or her own,
how many guards would that person hire?
d. If the residents act together, how many security guards will they hire?
e. Do you think cooperation among the residents is made easier or more difficult by them all
having the same private marginal benefit? Why?
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