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3. Al (person a) and Barack (person b) have the following endowments, utilities and demand functions: Person Endowment Utility Demand for x Demand for y a (4, 1) In x " + ya Py/ Px (m" /py) - 1 b (2, 3) 2In x6 + yo 2py / Px (m /py) -2 (a) (10 points) Calculate and draw the points of the contract curve that lie in the interior of the Edgeworth box below. ob O" (b) (5 points) Al and Barack decide to trade. Good x is the numeraire good, i.e., Px = 1. Find the Walras equilibrium price. Py* (c) (5 points) Find the Walras allocation ((x*, yo*), (xb*, yb*)). (xbx, 1bx)