In the Case in Point on page 642, the cost of cyclical unemployment was estimated for 2002 by assuming that the unemployment rate associated with full employment was 5 percent. Suppose changes in the age structure of the workforce meant that full employment in 2002 was actually associated with an unemployment rate of 4.5 percent rather than the 5 percent figure used earlier. Recalculate the output costs of the recession. Explain why they are higher.