27. Mr. X has an exogenous income W and his utility from consumption c is u(c). Mr. X knows that an accident can occur with probability p and if it occurs, the monetary equivalent to the damage is T. Mr. X can however affect the accident probability p through the prevention effort e. In particular, e can take two values - zero and a and an assumption is that p(0) > p(a), that is by putting prevention effort, probability of occurring an accident can be reduced. Let us also assume that if Mr. X puts an effòrt e, the disutility from the effort is Ae2 where A is the per unit effort cost. What iş the critical value of A, A*, below which the effort will be undertaken, and above which the effort will not be undertaken, by Mr. X ? (a) A* = P(@)-p(0)|[u(W-T)-u(W)] a2 (b) A* = p(a)-p(0)]a? [u(W-T)-u(W)| %3D p(a) 4 p(0) (W-T) 4(W) (с) A* (d) A*: p(a)p(0)a² u(W-T)u(W) ||

Microeconomic Theory
12th Edition
ISBN:9781337517942
Author:NICHOLSON
Publisher:NICHOLSON
Chapter7: Uncertainty
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Problem 7.5P
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The question is based on 'Uncertainity'. The question is a little unusual and difficult. I have attached the image. It is a multiple choice question; only one of the four options is correct. Please walk me through the logic of solving it. Thank you. 

27. Mr. X has an exogenous income W and his utility from consumption c
is u(c). Mr. X knows that an accident can occur with probability p and
if it occurs, the monetary equivalent to the damage is T. Mr. X can
however affect the accident probability p through the prevention effort
e. In particular, e can take two values - zero and a and an assumption
is that p(0) > p(a), that is by putting prevention effort, probability of
occurring an accident can be reduced. Let us also assume that if Mr.
X puts an effört e, the disutility from the effort is Ae? where A is the
per unit effort cost. What is the critical value of A, A*, below which
the effort will be undertaken, and above which the effort will not be
undertaken, by Mr. X ?
(а) А*.
[p(a)-p(0)][u(W-T)-u(W)]
a2
(b) А*
p(@)-p(0)]a²
Tu(W-T)-u(W)I
p(a) 4
p(0)
(W-T)a2
(W)
(c) A*
(d) A*
p(a)p(0)a²
(W-T)u(W)
||
Transcribed Image Text:27. Mr. X has an exogenous income W and his utility from consumption c is u(c). Mr. X knows that an accident can occur with probability p and if it occurs, the monetary equivalent to the damage is T. Mr. X can however affect the accident probability p through the prevention effort e. In particular, e can take two values - zero and a and an assumption is that p(0) > p(a), that is by putting prevention effort, probability of occurring an accident can be reduced. Let us also assume that if Mr. X puts an effört e, the disutility from the effort is Ae? where A is the per unit effort cost. What is the critical value of A, A*, below which the effort will be undertaken, and above which the effort will not be undertaken, by Mr. X ? (а) А*. [p(a)-p(0)][u(W-T)-u(W)] a2 (b) А* p(@)-p(0)]a² Tu(W-T)-u(W)I p(a) 4 p(0) (W-T)a2 (W) (c) A* (d) A* p(a)p(0)a² (W-T)u(W) ||
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