\f2. a. Using the data in the table below, calculate the undesired changes in investment (IU). (2 marks) Level of Consumption Gross Aggregate Savings Unintended Output Investment Expenditure (5) changes in and (AE) Investment Income (IU) (GDP = Y) m $105 m $125 b. If output (production) in the economy was at $820, there would be a (shortage or a surplus) (circle the correct answer) of product by $ . As a result, we would see the economy (expand I contract) [circle the correct answer]. (3 marks) US SAII 4. The following are transformation tables for two countries. + Canada Product A B C D E Wheat 0 5 10 15 20 Corn 80 60 40 20 Great Britain Product A B C D E Wheat 0 5 10 15 20 Corn 60 45 35 15 0 a. To produce one unit of corn, Canada must give up the production of wheat. (1 mark) b. Which country has comparative advantage in wheat production? (1 mark)