b)There are three people and two goods in an economy. The utility functions and the initial bundles are given below: U₁ = X11 X 12 U, = 2X zi* X22 U₂ = x 31 x 32+X 32 W₁ = (0,8) W>=(2,2) W=(8,0)
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- 2(b)There are three people and two goods in an economy. The utility functions and the initial bundles are given below: U1 = X11X 12 U = 2x 21+ X 22 U3 = X 31 X 3z+X 32 W; = (0,8) W;= (2,2) Wy= (8,0) Suppose it is suggested that the three traders move to the allocation x given by x;= (1,2), x2= (8,4), X3= (1,4) b. Show that x makes no one worse off than the original allocation.2) Which of the following utility functions represent the same preferences? Explain. a) U (x₁, x₂) = X₁ X₂ b) W (x₁, x₂) = 5lnx₁ +5lnx₂ c) V (x₁, x₂) = x₁¹/3x₂ ¹/3 - 0.8 d) Z(x₁, x₂) = 0.5x₁ + 0.5x₂If the utility function of an individual takes the form: U = U ( x 1, x2) = (x1 + 2) 2 (x2 + 3) 3 Where U is total utility, and x1 and x2 are the quantities of two commoditiies consumed: (a) Find the marginal-utility function of each of the two commodities (b) Find the value of the marginal utility of the first commodity when 3 units of each commodity are consumed.
- 2(b)There are three people and two goods in an economy. The utility functions and the initial bundles are given below: U1 = X11X 12 U2 = 2x 21+ X 22 U3 =X 31 X 32+X 32 W; = (0,8) w (2,2) W3= (8,0) Suppose it is suggested that the three traders move to the allocation x given by x;= (1,2), x2= (8, 4), X3= (1,4) a. Calculate the MRS for the three at the allocation x. b. Show that x makes no one worse off than the original allocation. C. Show that x is not in the core.Rafe is optimally choosing to consume 6 apples and 3 bananas. The prices of apples and bananas are p. = 7 and pb - 7. Which of the following utility functions over quantities of apples (a) and bananas (b) could represent Rafe's preferences? = u(a, b)-a4/5 61/5 Ou(a, b) = a¹/5 64/5 Ou(a, b)-a2/3 b1/3 Ou(a, b)-a¹/3 2/3Suppose there are two consumers, A and B. There are two goods, X and Y. There is a TOTAL of 8 units of X and a TOTAL of 8 units of Y. The consumers' utility functions are given by: UA(X,Y) = 2X + Y UB(X,Y) = X*Y2 Which of the following allocations is Pareto Efficient? None of the other answers are Pareto Efficient. Consumer A gets 3 units of X and 8 units of Y, and Consumer B gets 5 units of X and O units of Y. Consumer A gets 4 units of X and 4 units of Y, and Consumer B gets 4 units of X and 4 units of Y. Consumer A gets 1 units of X and 4 units of Y, and Consumer B gets 7 units of X and 4 units of Y. Consumer A gets 8 units of X and 8 units of Y, and Consumer B gets 0 units of X and O units of Y.
- Smith and Jones are stranded on a desert island. Each has in her possession some slices of ham (H) and cheese (C). Smith prefers to consume ham and cheese in the fixed proportion of 2 slices of cheese to each slice of ham. Her utility function is given by Us = min(10H, 5C). Jones, on the other hand, regards ham and cheese as substitutes – she is always willing to trade 3 slices of ham for 4 slices of cheese, and her utility function is given by UJ = 4H + 3C. Total endowments are 100 slices of ham and 200 slices of cheese. a. Draw the Edgeworth Box diagram for all possible exchanges in this situation. What is the contract curve for this exchange economy? b. Suppose Smith’s initial endowment is 40 slices of ham and 80 slices of cheese (Jones has the remaining ham and cheese as her initial endowment). What mutually beneficial trades are possible in this economy and what utility levels will Smith and Jones enjoy from such trades? c. Now imagine a new endowment in which Smith has 60 slices…3(b)Consider the following social choice problem in the setting of consumption of two goods by two consumers. The two goods are called tillip and quillip and the two consumers are called 1 and 2. Consumer 1 has utility function U; (t,g) =6+.4 In(t) + .6 In(q) (where t is the amount of tillip 1 consumes and q is the amount of quillip). Consumer 2 has utility function U; (t,q) = 8 + In (t) + In(q). The social endowment consists of 15 units of tillip and 20 units of quillip. a. Suppose that a social dictator has social welfare functional of the following form: social welfare, as afunction of (u",u") is a weighted sum with weight 2 on the lesser of u' and u' and weight 1 on the greater of the two. What will be the welfare optimum plan chosen by this social planner? b. What is the set of all feasible, Pareto efficient allocations of the consumption good for this society? %3D1.2 Ann and Bob each own 10 bottles of beer and, altogether, they own 20 bags of peanuts. There are no other people and no other goods in the economy, and no production of either good is possible. Using a to denote bottles of beer and y to denote bags of peanuts, Ann's and Bob's preferences are described by the following utility functions: UA (XA, YA) = TAYA and UB (XB, YB) = 2xB+ YB. In each of the following cases, determine the market equilibrium price ratio and allocation and depict the equilibrium in an Edgeworth box diagram. (a) Bob owns 20 bags of peanuts and Ann owns no peanuts. (b) Bob owns 15 bags of peanuts and Ann owns 5 bags. (c) Ann owns 20 bags of peanuts and Bob owns no peanuts.
- 2(b)There are three people and two goods in an economy. The utility functions and the initial bundles are given below: U₁ = X11 X 12 Uz = 2X zi+ X 22 W₁ = (0,8) W=(2,2) W3= (8,0) U3 = x 31 x 32+X 32 Suppose it is suggested that the three traders move to the allocation x given by x₁= (1,2), x₂= (8,4), X3= (1,4) b. Show that x makes no one worse off than the original allocation. c. Show that x is not in the core.Suppose the utility possibility frontier for two individuals is given by U_a+2U_b=200 Please plot the utility frontier on a graph.Suppose there are two consumers, A and B. There are two goods, X and Y. There is a TOTAL of 9 units of X and a TOTAL of 9 units of Y. The consumers' utility functions are given by: UA(X,Y) = 3X + Y UB(X,Y) = X2 Y For Each of the following allocations, answer True if it is Pareto Efficient, and False if it is not Pareto Efficient. [ Select ] Allocation A: Consumer A gets X = 7 and Y =6; Consumer B gets X = 2 and Y = 3. [ Select ] Allocation B: Consumer A gets X = 6 and Y =7; !3! Consumer B gets X = 3 and Y = 2 %3D [ Select ] Allocation C: Consumer A gets X = 2 and Y =0; Consumer B gets X = 7 and Y = 9 [ Select ] v Allocation D: Consumer A gets X = 1 and Y =0; Consumer B gets X = 8 and Y = 9