Question 1 Consider the budget constrained utility maximisation problem between two goods, Good, and Goody. Let x be the quantity of Good, whose price is $13 per unit and y be the quantity of Good, whose price is $15 per unit The total budget is $560. (Therefore, the budget constraint is 13x + 15y = 560). The Utility function is given by U(x, y) = x(y + 1) (a) Solve the problem to maximise the utility, constrained by the budget using Lagrange Multipliers. (b) Show that the solution found does actually maximise the utility function (amongst feasible x and y choices). (c) Calculate the optimal values for x*,y*, λ* and U* (d) Consider now the dual optimisation problem of minimising the cost (Budget, B(x, y)) to achieve the utility U* as calculated in (c). Relate the optimal values of this problem to those found in (c) and also B*.
Question 1 Consider the budget constrained utility maximisation problem between two goods, Good, and Goody. Let x be the quantity of Good, whose price is $13 per unit and y be the quantity of Good, whose price is $15 per unit The total budget is $560. (Therefore, the budget constraint is 13x + 15y = 560). The Utility function is given by U(x, y) = x(y + 1) (a) Solve the problem to maximise the utility, constrained by the budget using Lagrange Multipliers. (b) Show that the solution found does actually maximise the utility function (amongst feasible x and y choices). (c) Calculate the optimal values for x*,y*, λ* and U* (d) Consider now the dual optimisation problem of minimising the cost (Budget, B(x, y)) to achieve the utility U* as calculated in (c). Relate the optimal values of this problem to those found in (c) and also B*.
Chapter1: Making Economics Decisions
Section: Chapter Questions
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