economic of preference and Walrasian equilibria

3. Consider a 2-consumer, 2-commodity economy, in which the consumers' preferences can be represented by, for i = 1, 2, with the initial endowments W1 = (16, 4) w2 = (16, 0). a. Suppose this is an exchange economy, that is, Y = {0}. Find the set of Walrasian equilibria (or show none exists). b. Suppose now that there is one firm, with Yi = (y ER? | y1 0, y1 + 242 0}, and that the shares of ownership are dj = 1/2, i = 1,2, j = 1,2. Find the set of Walrasian equilibria (or show none exists)