Question: Suppose there are two consumers, A and B. The utility functions of each consumer are given by: U A (X,Y) = X 3 *Y U

Suppose there are two consumers, A and B. The utility functions of each consumer are given by:

UA(X,Y) = X3*Y

UB(X,Y) = X*Y

Therefore:

  • For consumer A: MUX = 3X2Y; MUY = X3
  • For consumer B: MUX = Y; MUY = X

The initial endowments are:

A: X = 40; Y = 80

B: X = 60; Y = 120

a) (16 points) Suppose the price of Y, PY = 1. Calculate the price of X, PX that will lead to a competitive equilibrium.

b) (8 points) How much of each good does each consumer demand in equilibrium? Consumer A's demand for X: Consumer A's demand for Y: Consumer B's demand for X: Consumer B's demand for Y: c) (4 points) What is the marginal rate of substitution for consumer A at the competitive equilibrium?

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