If for a firm the price of input A is four times the price of input B, costs will be
minimized for a given level of output when the
a. firm uses four times as much input A as input B.
b. total product of input A is four times greater than the total product of input B.
c. average product of input A is four times greater than the average product of input B.
d. marginal product of input A is four times greater than the marginal product of input
B.
e. total products of both A and B are equal to four times the marginal products of inputs
A and B.
The basic difference between rent and other payments for productive inputs is that
a. a reduction in rent will not influence the availability of the input; reductions in other
input payments will reduce their availability.
b. rent is earned income to the input owner; other input payments are unearned.
c. rent is payment for use of an input; other input payments are made to obtain input
services.
d. rent is payment for an input that has alternative uses; other input payments are for
unique inputs.
e. There are no basic differences among these payments.