When someone buys a movie on DVD, the DVD is a ________ good.

We know that among the current account, the capital and financial account, and the official settlements account that the

A) current account plus the capital and financial account equals zero. B) current account plus the capital and financial account plus the official settlements account must sum to 100. C) current account is always larger than the capital and financial and official settlements accounts combined. D) current account plus the capital and financial account plus the official settlements account must sum to zero. E) current and capital and financial accounts sum to zero while the official settlements account must be greater than zero.

Which of the following is an example of a barrier to entry?

a. Crystal charges a higher price than her competitors for her hair-styling services. b. Dan charges a lower price than his competitors for his dry-walling services. c. Jackie offers free samples of her loose-meat sandwiches to attract new customers. d. Roseanne obtains a copyright for a short story that she wrote and published.