Let R2unrestricted and R2restricted be 0.4366 and 0.4149 respectively. The difference between the unrestricted and the restricted model is that you have imposed two restrictions. There are 420 observations. The F-statistic in this case is

An art museum decides to offer tours by having visitors listen to cassette tapes rather than have tour guides. The museum is answering the ________ part of one of the two big economic questions

A) "scarcity" B) "what" C) "why" D) "how"

Suppose that a bank begins with $500 million in deposits and $100 million in reserves and is just meeting its desired reserve ratio. Now suppose a decrease in the required reserve ratio lowers the desired reserve ratio to 10 percent

After the fall in the desired reserve ratio but before the bank makes any changes, the bank's excess reserves are A) 0. B) $400 million. C) $450 million. D) $50 million.