Which of the following groups has had declining labor force participation over the last 30 years?

When the U.S. dollar depreciates against the yen, the yen becomes ________ expensive and the U.S. exchange rate ________

A) more; rises B) less; rises C) more; falls D) less; falls

A black market may arise when government imposes a price ceiling

a. True b. False Indicate whether the statement is true or false