Which of the following will NOT affect the natural rate of unemployment?

Market failure or inefficient consumption will take place in the market structures EXCEPT for

A) perfect competition. B) monopolistic competition. C) oligopoly. D) monopoly.

Suppose a country's net capital outflow does not change, but its investment rises by $250 billion

a. Its saving must have risen by $250 billion so its net exports have risen. b. Its saving must have risen by $250 billion, but its net exports are unchanged. c. Its saving must have fallen by $250 billion, so its net exports have fallen. d. Its saving must have fallen by $250 billion, but its net exports are unchanged.