Which of the following is NOT a cause for real wage rigidity?

Recent research regarding increases in the Federal minimum wage shows that

A. unemployment is only slightly affected. B. the minimum wage has many benefits. C. it improves labor productivity. D. the unemployment rate rises.

If the U.S. dollar appreciates relative to the British pound, then ________.

A. the pound will appreciate relative to the U.S. dollar B. British goods will be more expensive for Americans C. the pound will depreciate relative to the U.S. dollar D. American goods will be less expensive for the British