Year Gov Spend Tax Rev GDP

1 450 425 2000

2 500 450 3000

3 600 560 4000

4 640 620 5000

5 680 580 4800

6 600 620 5000

The accompanying table gives budget information for a hypothetical economy. Assume that all budget surpluses are used to pay down the public debt. The budget deficit in year 3 is