The difference in present value between a perpetuity that ...

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The difference in present value between a perpetuity that promised 1 per year starting today and one that promised 1 per year starting next year is
 a. 0.
  b. 1.
  c. 1/(1 + r).
  d. r/(1 + r).

Question 2

A monopolist who owned the entire supply of a scarce resource would set a price
 a. at about the competitive level.
  b. lower than the competitive level.
  c. higher than the competitive level but lower than what a monopoly producer of a non-scarce good would.
  d. above that which would be chosen by a monopoly producer of a nonscarce good.

[ebenov]

Answer to Question 1

b

Answer to Question 2

a