1. Explain how an appreciation of the U.S. dollar against the Japanese yen would impact each of the following: A. the trade balance between the United States and Japan B. aggregate expenditures (E) in the United States economy 2. Explain how an open market purchase by the Federal Reserve would impact each of the following. Use graphs where appropriate to help you explain your answers. A. the real interest rate B. aggregate expenditures (E) in the economy