Yen Intervention: Can the US Save Japan's Currency?

The Japanese yen has been steadily weakening over the past 15 years, dropping from around 76 yen per dollar to a recent low of nearly 164. This decline is largely due to the Bank of Japan's decision to keep interest rates extremely low for many years to combat deflation and stimulate economic growth.

However, with inflation finally returning to Japan, at 1.7% year-over-year in June, the Bank of Japan is hesitant to raise interest rates aggressively due to the country's massive government debt burden.

The carry trade has also contributed significantly to the yen's decline. Investors borrow yen at very low rates, convert it into dollars, and buy US bonds yielding around 4%. This strategy allows them to earn a roughly 2.5% return by borrowing in a cheap currency and investing in a higher-yielding one.

However, this trade requires investors to sell yen and buy another currency, which puts additional pressure on the yen's value. The Bank of Japan has attempted to intervene in the market by buying yen, but its efforts have been unsuccessful so far.