If a $100 billion decrease in investment spending causes income to decline by $100 billion the first round of the multiplier process and by $75 billion in the second round, income will eventually decline by:

Of the following, the federal government obtains most revenue from

A) sales taxes. B) Social Security taxes. C) property taxes. D) excise taxes. E) corporate income taxes.

Long-run market supply curves are upward sloping if

A) firms are identical. B) the number of firms is restricted in the long run. C) input prices fall as the industry expands. D) All of the above.