Japan's efforts to intervene in the foreign exchange market are ineffective and destined to fail

Why Efforts to Boost the Yen Are Likely to Fail

There has been increasing speculation about the possibility of authorities stepping in to support the Yen. However, there are two main reasons why such measures are unlikely to succeed. The first relates to immediate market dynamics: interventions tend to be most effective when they catch traders off guard and when currency market positions are extremely imbalanced. At present, neither of these conditions applies.

The second, and more significant, reason concerns the underlying economic landscape. As highlighted in my recent analyses, Japan’s long-term interest rates remain significantly lower than where they would be if left entirely to market forces. This situation results in elevated risk premiums, largely due to Japan’s substantial...