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Part II (80 Points) Shor Answers. Please answer the following four questions. Your answers
should be brief but as complete as possible. You may use the back of the page if more writing
space is needed. 1 (a) The present value of benefits of a public project of scale S is PVB=16SS2
and the present value of its costs is PVC=3S2. Use calculus to determine the optimum scale of
this project. Also illustrate your answer in a diagram. [10 points] (b) Define the concept of
expected value and explain how it may be employed for developing a project selection criterion.
[8 points] (c) What does the use of the criterion you suggested in part (b) imply about the
planner's [2 points] attitude towards risk?

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Optimum Scale, Expected Value, and Risk Attitude for Public Projects

  • 1. Part II (80 Points) Shor Answers. Please answer the following four questions. Your answers should be brief but as complete as possible. You may use the back of the page if more writing space is needed. 1 (a) The present value of benefits of a public project of scale S is PVB=16SS2 and the present value of its costs is PVC=3S2. Use calculus to determine the optimum scale of this project. Also illustrate your answer in a diagram. [10 points] (b) Define the concept of expected value and explain how it may be employed for developing a project selection criterion. [8 points] (c) What does the use of the criterion you suggested in part (b) imply about the planner's [2 points] attitude towards risk?