1. Provide a definition for the certainty equivalent level of consumption for the simple lottery described above.

Algebra and Trigonometry (MindTap Course List)
4th Edition
ISBN:9781305071742
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter14: Counting And Probability
Section14.2: Probability
Problem 3E: The conditional probability of E given that F occurs is P(EF)=___________. So in rolling a die the...
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Consider the lottery that assigns a probability 7 of obtaining a level of consumption C
and a probability 1-7 of obtaining a low level of consumption c1, with CH > C1. Consider
an individual facing such a lottery with utility function u(c) that has the properties that
more is better (that is, a strictly positive marginal utility of consumption at all levels of
c) and diminishing marginal utility of consumption, u"(c) < 0. As usual, we are using
the shorthand u'(c) = du@ for the first derivative of the utility function with respect to
du' (c) to be the second derivative of the utility function
consumption and u"(c) = Puc)
(which is also the derivative of the first derivative of the utility function).
de
1. Provide a definition for the certainty equivalent level of consumption for the simple
lottery described above.
2. Using the definition of the certainty equivalent level of consumption provide an
expression for the ratio,
u(Cce) u(€L)
u(cH) u(c1)*
3. Define the risk premium p = č – Cee where č = rCH + (1 – 7)c, is the expected
level of consumption from the lottery (7 = E[c]). Consider the following exercise.
There are three lotteries characterized by different probabilities of obtaining cH -
Let these probabilities be given by a" > n' > a. Using a single diagram, plot the
risk premium for each of these three lotteries. Does the risk premium increase or
decrease as we increase a across these three lotteries? Provide the intuition for
your result.
Transcribed Image Text:Consider the lottery that assigns a probability 7 of obtaining a level of consumption C and a probability 1-7 of obtaining a low level of consumption c1, with CH > C1. Consider an individual facing such a lottery with utility function u(c) that has the properties that more is better (that is, a strictly positive marginal utility of consumption at all levels of c) and diminishing marginal utility of consumption, u"(c) < 0. As usual, we are using the shorthand u'(c) = du@ for the first derivative of the utility function with respect to du' (c) to be the second derivative of the utility function consumption and u"(c) = Puc) (which is also the derivative of the first derivative of the utility function). de 1. Provide a definition for the certainty equivalent level of consumption for the simple lottery described above. 2. Using the definition of the certainty equivalent level of consumption provide an expression for the ratio, u(Cce) u(€L) u(cH) u(c1)* 3. Define the risk premium p = č – Cee where č = rCH + (1 – 7)c, is the expected level of consumption from the lottery (7 = E[c]). Consider the following exercise. There are three lotteries characterized by different probabilities of obtaining cH - Let these probabilities be given by a" > n' > a. Using a single diagram, plot the risk premium for each of these three lotteries. Does the risk premium increase or decrease as we increase a across these three lotteries? Provide the intuition for your result.
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