Compute the utility of group 1 from driving when group 2 takes public transport: U₁(x₁=d, x₂ = p). Compute the utility of group 1 from taking public transport when group 2 takes public transport: U₁(x₁ = P, X₂ = p). Does group 1 prefer to drive or take public transport, given that group 2 takes public transport?
Compute the utility of group 1 from driving when group 2 takes public transport: U₁(x₁=d, x₂ = p). Compute the utility of group 1 from taking public transport when group 2 takes public transport: U₁(x₁ = P, X₂ = p). Does group 1 prefer to drive or take public transport, given that group 2 takes public transport?
Chapter1: Making Economics Decisions
Section: Chapter Questions
Problem 1QTC
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Transcribed Image Text:Following the broad overview of potential costs and benefits of the policy, we will now
analyse the main objective of the policy using an economic model.
Consider two groups of citizens, each group can either choose to drive x = d or to take
public transport x = p. The first group, group 1, enjoys driving and has the following
4
benefit from using their car within the ULEZ area: B₁(x₁ = d) = 18. The second group,
group 2, does not enjoy driving and has a benefit of B₂(x₂ d) = 0 from driving their
car. If they don't drive, citizens can use public transport to get around. The benefit of
doing so is the same for both groups: B₁(x₁ = p) = B₂(x₂ = p) = 10. Both groups drive
cars that do not meet the ULEZ requirements and therefore create excessive pollution.
=
For simplicity, we consider that pollution, and the health problems it induces, are the
main cost of driving. This cost is imposed on both groups and is equal to C/(x₁ =
d, x₂= d) = 10 if both groups drive, C₁(x₁ = p, x₂ = d) Ci(x₁ d, x₂ = p) = 5 if only
one group drives and C/(x₁=p, X₂ = p) = 0 if neither group drives, where i represents
either group 1 or group 2. The utility of each group from choosing action x; is equal to
the benefits minus the costs: U(X₁, Xxj) = Bi(xi) — Ci(Xi, X), where i E {1,2}.
1. Compute the utility of group 1 from driving when group 2 takes public transport:
U₁(x₁=d, x₂ = p). Compute the utility of group 1 from taking public transport when
group 2 takes public transport: U₁(x₁=p₂ x₂ = p). Does group 1 prefer to drive or
take public transport, given that group 2 takes public transport?
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2. Compute the utility of group 2 from driving when group 1 drives: U2(x2 = d, x1 = d). Compute the utility of group 2 from taking public transport when group 1 drives: U2(x2 = p, x1 = d). Does group 2 prefer to drive or take public transport, given that group 1 drives?
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