CHA 5. Albert and Franco both follow the life-cycle hypothesis: they smooth consumption as much as possible. They each live for five periods, the last two of which are retirement. Here are their incomes earned during each period: Period Albert Franco $100,000 $40,000 100,000 w 1- 100,000 100,000 160.000 UI + They both die at the beginning of period six. To keep things simple, assume that the interest rate is zero for both saving and borrowing and that the life span is perfectly predictable. a. For each individual, compute consumption and saving in each period of life. b. Compute their wealth (that is, their accumu- lated saving) at the beginning of each period. including period six. c. Graph consumption, income, and wealth for each of them, with the period on the horizontal axis. Compare your graph to Figure 16-12. d. Suppose now that consumers cannot bor- row, so wealth cannot be negative. How does that change your answers above? Draw a new graph for part (c) if necessary