There are 100 units of x₁ and 100 units of x₂. Consumers 1 and 2 are each endowed with 50 units of each good. Consumer 1 says, 'I love x₁, but I can take or leave x₂'. Consumer 2 says, 'I love x₂, but I can take or leave x₁'. (a) Draw an Edgeworth box for these traders and sketch their preferences. (b) Identify the core of this economy. (c) Find all Walrasian equilibria for this economy.