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Questions › JNU › JNU SIS 2020 › Q32
0 marksMicroeconomics › Welfare economics and social choice › Social welfare functions and social choiceHardabout 3 min

JNU SIS 2020 Question 32: Welfare economics and social choice

There are 200 kgs of food that must be allocated between two sailors marooned at an island. The utility functions of the two sailors are given by u1=F1,u2=12F2u_1 = \sqrt{F_1}, u_2 = \tfrac{1}{2}\sqrt{F_2}u1​=F1​​,u2​=21​F2​​ where FiF_iFi​, i = 1, 2 is the quantity of food consumed by sailor i. Suppose the social welfare function is of the firm w=u1 u2w = \sqrt{u_1}\,\sqrt{u_2}w=u1​​u2​​ . How should food be allocated between the sailors so as to maximize social welfare ?

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There are 200 kgs of food that must be allocated between two sailors marooned at an island. The utility functions of the two sailors are given by u₁ = √(F₁), u₂ = 1/2√(F₂) where Fᵢ, i = 1, 2 is the quantity of food consumed by sailor i. Suppose the social welfare function is of the firm w = √(u₁) √(u₂). How should food be allocated between the sailors so as to maximize social welfare? (A) 200, 200 (B) 140, 70 (C) 100, 100 (D) None of the above

Also written as: There are 200 kgs of food that must be allocated between two sailors marooned at an island. The utility functions of the two sailors are given by u_1 = sqrt(F_1), u_2 = 1/2sqrt(F_2) where F_i, i = 1, 2 is the quantity of food consumed by sailor i. Suppose the social welfare function is of the firm w = sqrt(u_1) sqrt(u_2). How should food be allocated between the sailors so as to maximize social welfare?

Welfare economics and social choice has come up 62 times in 6 exams since 2004.

What this question tests

This question is on Social welfare functions and social choice, part of Welfare economics and social choice in Microeconomics.

Combining individual preferences into social judgements, and the limits of doing so.

TestStop has 8 past-paper questions on this subtopic.

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