Skip to content
We use only essential cookies to keep you signed in and remember your preferences. See our Cookie Policy.
TestStop
MocksPracticeResourcesIndiaBlogPricing
Sign in
Questions › IIT JAM › IIT JAM 2022 › Q51
2 marksMicroeconomics › Choice under uncertainty › Insurance, risk sharing and intertemporal choiceHardabout 3 min

IIT JAM 2022 Question 51: Choice under uncertainty

An individual faces wealth Rs. 10 lakh with probability 0.75 and Rs. 7 lakh with probability 0.25. With utility U(w)=w3U(w) = w^3U(w)=w3, the individual will buy full insurance by paying a premium of Rs. _______ lakh (round off to 2 decimal places).

Answer and worked solution

Answer: 0.56 to 0.60

Expected utility is EU=0.75(103)+0.25(73)=750+85.75=835.75EU = 0.75(10^3) + 0.25(7^3) = 750 + 85.75 = 835.75EU=0.75(103)+0.25(73)=750+85.75=835.75. The certainty equivalent solves CE3=835.75CE^3 = 835.75CE3=835.75, so CE=9.42CE = 9.42CE=9.42 lakh.

Full insurance guarantees the high wealth net of the premium, 10−P10 - P10−P. The individual will pay up to the point of indifference, 10−P=CE=9.4210 - P = CE = 9.4210−P=CE=9.42, giving P=0.58P = 0.58P=0.58 lakh, within the accepted range. (Because UUU is convex the person is risk loving, so the premium 0.580.580.58 is below the actuarially fair premium of 0.750.750.75.)

Plain-text version

An individual faces wealth Rs. 10 lakh with probability 0.75 and Rs. 7 lakh with probability 0.25. With utility U(w) = w³, the individual will buy full insurance by paying a premium of Rs. _ lakh (round off to 2 decimal places).

Also written as: An individual faces wealth Rs. 10 lakh with probability 0.75 and Rs. 7 lakh with probability 0.25. With utility U(w) = w^3, the individual will buy full insurance by paying a premium of Rs. _ lakh (round off to 2 decimal places).

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

What this question tests

This question is on Insurance, risk sharing and intertemporal choice, part of Choice under uncertainty in Microeconomics.

How insurance and saving let people smooth consumption across states and over time.

TestStop has 8 past-paper questions on this subtopic; the nearest in year are below.

  • GATE 2021 · Q32Suppose Vijay has purchased a high-speed car worth ₹1000000. During the purchase, an Insurance company has…
Take this paper as a timed mockMore on Insurance, risk sharing and intertemporal choice

Similar questions from other papers

  • GATE 2021 · Q13Piku faces a lottery with outcomes of ₹24, ₹12, ₹48 and ₹6 given by the following probability distribution | Lottery Outcome | ₹24 | ₹12 | ₹48 | ₹6 | Probability of…

Question from the IIT JAM 2022 paper. Solutions are TestStop's own. Not affiliated with or endorsed by any examination authority.