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Questions › DSE › DSE 2013 › Q6
1 markMicroeconomics › Choice under uncertainty › Expected utility and the von Neumann-Morgenstern frameworkHardabout 3 min

DSE 2013 Question 6: Choice under uncertainty

Consider an individual AAA with utility u(x)=10xu(x)=10\sqrt{x}u(x)=10x​, where xxx is money available. She has Rs 100. She can buy a lottery costing Rs 51 that pays Rs 351 with probability ppp and 0 with probability 1−p1-p1−p. AAA is an expected-utility maximizer. She will:

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Plain-text version

Consider an individual A with utility u(x)=10√x, where x is money available. She has Rs 100. She can buy a lottery costing Rs 51 that pays Rs 351 with probability p and 0 with probability 1-p. A is an expected-utility maximizer. She will: (A) not prefer to buy the lottery at all as long as p<1 (B) certainly prefer to buy the lottery as long as p>0 (C) prefer to buy the lottery if and only if p>51/351 (D) prefer to buy the lottery if and only if p>51/221

Also written as: Consider an individual A with utility u(x)=10sqrt(x), where x is money available. She has Rs 100. She can buy a lottery costing Rs 51 that pays Rs 351 with probability p and 0 with probability 1-p. A is an expected-utility maximizer. She will:

Choice under uncertainty has come up 27 times in 7 exams since 2007.

What this question tests

This question is on Expected utility and the von Neumann-Morgenstern framework, part of Choice under uncertainty in Microeconomics.

Ranking uncertain prospects by expected utility, and where observed choices depart from it.

TestStop has 3 past-paper questions on this subtopic.

Practise Choice under uncertaintyMore on Expected utility and the von Neumann-Morgenstern framework

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Question from the DSE 2013 paper. Solutions are TestStop's own. Not affiliated with or endorsed by any examination authority.