18) the major source of tax revenue for the federal government is:
a.personal income taxes.
b.property taxes.
c.corporate income taxes.
d.sales and excise taxes.
19) Assume labor is the only variable input and that an additional input of labor
increases total output from 72 to 78 units. If the product sells for $6 per unit in a purely
competitive market, the MRP of this additional worker is:
A.$6.
B.$12.
C.$36.
D.$72.
20) resources are efficiently allocated when production occurs where:
a.marginal cost equals average variable cost.
b.price is equal to average revenue.
c.price is equal to marginal cost.
d.price is equal to average variable cost.
21) (Consider This) The story about economist Irving Fisher’s conversation with his
masseuse illustrates that:
A.other things equal, interest rates are higher on smaller loans than on larger loans.
B.interest is a payment required for someone to give up the present use of their money.
C.other things equal, longer term loans have lower interest rates than shorter-term
loans.
D.real interest rates differ from nominal interest rates.
22) An increasing share of the private capital flows to DVCs since 1990 have been in
the form of: