A consumer has utility u(x₁, x2) = x₁x² for two goods. The government subsidizes half of the cost of the purchase of good 1 up to a maximum of 2 units. Thus if the consumer chooses the bundle (1, 2), she pays p₁/2 per unit up to 2₁ = 2, and p₁ per unit thereafter. In particular, if she consumes more than two units, she receives a total subsidy of p₁. Assume throughout this question that w>p₁. Recall that the Marshallian demand for this utility function (in the absence of any subsidy) is z(p, w) = (3p₁¹ 3p²) w 2w (a) Carefully sketch the budget set. Be sure to identify relevant points of intersection with the axes. Solution: The budget set consists of all convex combinations of the points (0,0), (0, w/p2). (2, (w-p₁)/p2), and (1+w/p₁,0). The upper-right boundary of this region consists of two line segments meeting at a kink, with the segment to the left of the kink being flatter than the one to the right. (b) Find the utility-maximizing bundle as a function of prices (P₁, P2) and wealth w.
A consumer has utility u(x₁, x2) = x₁x² for two goods. The government subsidizes half of the cost of the purchase of good 1 up to a maximum of 2 units. Thus if the consumer chooses the bundle (1, 2), she pays p₁/2 per unit up to 2₁ = 2, and p₁ per unit thereafter. In particular, if she consumes more than two units, she receives a total subsidy of p₁. Assume throughout this question that w>p₁. Recall that the Marshallian demand for this utility function (in the absence of any subsidy) is z(p, w) = (3p₁¹ 3p²) w 2w (a) Carefully sketch the budget set. Be sure to identify relevant points of intersection with the axes. Solution: The budget set consists of all convex combinations of the points (0,0), (0, w/p2). (2, (w-p₁)/p2), and (1+w/p₁,0). The upper-right boundary of this region consists of two line segments meeting at a kink, with the segment to the left of the kink being flatter than the one to the right. (b) Find the utility-maximizing bundle as a function of prices (P₁, P2) and wealth w.
Chapter1: Making Economics Decisions
Section: Chapter Questions
Problem 1QTC
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why convex:
The budget set consists of all convex combinations of the points
How to know these: can you show each the points can be derive
(0, 0), (0, w/p2), (2,(w p1)/p2), and (1 + w/p1, 0).
The upper-right boundary of this region consists of two line segments meeting at a kink, with the segment to the left of the kink being flatter than the one to the right.
b)
how to solve it?
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