I'm not sure I would call the yen weak vs. the dollar.

First, the yen and the dollar are freely floating in world markets. The market determines the value of a currency.

We have a huge trade deficit with Japan, which means the Japanese are selling / converting dollars into yen to bring the money back home.

We also have a huge budget deficit, and the Fed sells debt in the form of bonds, which the Japanese / Chinese and other governments in the world buy. The more debt we have to finance, the further it drives down the value of the dollar.

__________________
Paul S.

2001 E430, Bourdeaux Red, Oyster interior.
79,200 miles.

1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".