If a firm wants to maximize profits it should
A) hire each factor of production up to the point at which the marginal physical product per last dollar spent is equalized.
B) hire each factor of production up to the point at which the marginal revenue product per last dollar spent is equalized.
C) hire each factor of production up to the point at which the marginal factor cost per last dollar spent is equalized.
D) hire the same number of units of all inputs.
Answer: A
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Indicate whether the statement is true or false
From 1865 to 1910, the U.S. share of world trade was
(a) nonexistent. (b) miniscule. (c) disproportionately small compared to the British. (d) disproportionately high compared to the U.S. population.