Exhibit 6-10 Short-run cost schedule for book publisher's hourly production
TotalOutput
TotalVariable Cost
TotalCost
0 cases of books
$    0
$200
1
  100
  300
2
  150
  350
3
  250
  450
4
  450
  650
In Exhibit 6-10, the average variable cost of producing 2 cases of books is:

The statement that "increases in the tax on gasoline increase the price of gasoline" is an example of a

A) marginal statement. B) normative statement. C) rational-decision statement. D) macroeconomic statement. E) positive statement.

The natural rate hypothesis asserts that

A) changes in the unemployment rate from changes in the inflation rate are temporary. B) changes in the unemployment rate are natural and long-lasting. C) when prices change, the inflation rate changes temporarily and then returns to its natural rate. D) changes in the natural unemployment rate are only temporary. E) price changes occur at a natural rate, near a 6 percent average inflation rate.