Yen Trades Near 159 per Dollar as Tokyo's Joint Intervention Loses Effect

The yen traded at about 159.34 per dollar on Wednesday after weakening past 158 earlier in the week, according to Trading Economics, which reported that a recent joint intervention by Tokyo and Washington failed to sustain the currency's rally. Wide interest-rate differentials, fiscal concerns and high imported energy costs remain in place, and the intervention did not change any of them.

Japanese analysts are now using domestic reference prices to explain the loss of purchasing power. The Japan Times reported that one bank strategist has proposed a katsu curry index, comparing the international price of the pork and rice dish rather than hamburgers, arguing that it better captures how the yen's decline is experienced inside Japan.

Policy is moving in two conflicting directions. The Bank of Japan's summary of opinions from its July meeting recorded growing concern about accelerating inflation, with one board member suggesting rate increases could come faster. At the same time, Prime Minister Sanae Takaichi's government is associated with fiscal expansion, and a Japan Times commentary argues her success depends on adapting the strategic framework of former Prime Minister Shinzo Abe to conditions that no longer resemble his.

Currency intervention addresses only the exchange rate itself. The interest-rate gap and the deficits that make closing it expensive are the underlying cause, and neither has changed.