(25 points) Consider an exchange economy with two goods (x and y) and two agents (a and b). Agent a has preferences represented by Wa (Xa, ya) = Waya and endowment (wa, wa) = (2, 3). Agent b has preferences represented by ub(Xb, yb) = min Xb, 2yb} and endowment (w. x , Wy ) = (6, 1 ) . (a) Compute and draw the contract curve, the core, and all Walrasian equilibria. (b) Repeat part (a), but where agent a has preferences represented by max {Ca, 2ya}