If the current account balance is $30 billion, and the capital and financial account balance is $35 billion, then the official settlements account balance is ________ billion, and the official reserves ________

When the nominal price of a good increases over time, the real cost of buying the good

A) must increase. B) decreases because income also increases over time. C) does not change because income also increases over time. D) might increase, decrease, or stay the same depending on how much the CPI changed. E) might increase, decrease, or stay the same depending on how much income changed.

Which of the following is a characteristic of monopolistically competitive industries?

A. a small number of firms B. significant barriers to entry C. strategic behavior D. product differentiation