Japan BOJ 1% Rate Hike May Prompt ¥100T Fund Reallocation

A potential increase in Japan’s short-term interest rate to 1% could trigger a significant reallocation of funds into bank deposits, according to Tsutomu Watanabe, a University of Tokyo professor and former Bank of Japan (BOJ) official. In an interview with Reuters, Watanabe stated that such a shift could present challenges for the central bank as it continues to normalize its monetary policy.

Watanabe projected that if the BOJ raises its policy rate to 1%, approximately 100 trillion yen ($629 billion) could move from investment trusts and money market funds into bank deposits. He explained that higher interest rates would make traditional savings accounts more attractive to households and businesses, leading to an outflow from other financial products.

This large-scale movement of capital, according to Watanabe, would require commercial banks to secure more liquidity to meet the increased demand for deposits. Banks currently hold substantial reserves at the Bank of Japan. A large withdrawal of these reserves could complicate the central bank’s management of its balance sheet.

The Bank of Japan ended eight years of negative interest rates in March, a landmark decision that shifted its policy rate to a range of 0-0.1%. Financial markets and policymakers are now focused on the timing and pace of subsequent rate increases.

Watanabe suggested that the central bank should provide a clear plan for reducing its large balance sheet, a process known as quantitative tightening. He argued that outlining a strategy would help mitigate potential market disruptions caused by the fund transfers.

In his comments, Watanabe noted that the speed of the shift would depend on how quickly commercial banks pass on the policy rate hikes to their depositors. A faster transmission would likely accelerate the movement of funds into savings accounts.

The Bank of Japan’s current policy stance includes maintaining its purchases of Japanese government bonds, though it has signaled it will announce a detailed plan for tapering these purchases at its July policy meeting. The central bank’s balance sheet expanded significantly over years of aggressive monetary easing. How it reduces these holdings is a key element of its move toward policy normalization.