Macroeconomics 12th Edition by Michael Parkin

Exercise 9

With the strengthening of the yen against the U.S. dollar in 2012, Japan's central bank did not take any action. A Japanese politician called on the central bank to take actions to weaken the yen, saying it will help exporters in the short run and have no long-run effects.
a. What is Japan's current exchange rate policy
b. What does the politician want the exchange rate policy to be in the short run Why would such a policy have no effect on the exchange rate in the long run