Like the dual banking system for commercial banks, thrifts can have either ________ or ________ charters

Based on the above table, which shows the firms and sales in an industry, what is the four-firm concentration ratio?

A) 55 B) 74 C) 100 D) $740 million

If the interest rate increases from 5 percent to 7 percent, the present value of a future payment

A) rises. B) falls. C) is unaffected. D) might either rise or fall.