Recently, due to Japan's prolonged economic stagnation, the real effective exchange rate index, which reflects the comprehensive strength of the yen, has hit its lowest level in 53 years, indicating a continuous decline in the yen's purchasing power.

According to the latest data from the Bank for International Settlements, the real effective exchange rate index for the yen dropped to 67.73 in January this year, the lowest level since Japan adopted a floating exchange rate system in 1973. The real effective exchange rate index is a key indicator for measuring a currency's comprehensive actual purchasing power and international competitiveness.

Analysts point out that the persistent weakness in the yen's purchasing power reflects the long-term structural issues facing the Japanese economy. Japan's lack of economic growth momentum and prolonged low interest rates have continued to exert pressure on the yen's real effective exchange rate.