Japan may see upheaval of funds when BOJ hikes rates to 1%, economist says

By Leika Kihara and Takahiko Wada

TOKYO, Feb 19 (Reuters) - An expected rise in Japan's short-term interest rate to 1% may trigger a significant reallocation of cash into deposits that could complicate the Bank of Japan's ?monetary policy implementation, a leading economist told Reuters ?on Thursday.

The Bank of Japan exited a decade-long, massive stimulus in 2024 and raised the interest rate ?several times through December, when it hit a 30-year high of 0.75%. ?Markets are pricing in the chance of another hike ?to 1.0% as ?soon as in March or April.

Ikuko Samikawa, lead economist at think-tank Japan Center for Economic Research,?said that ?as Japan emerges from a prolonged ?zero-rate environment, it could experience huge fund shifts as households move cash into interest-bearing bank accounts.

TRIGGER POINT?

Historically, when the BOJ's policy ?rate has exceeded 0.5%, households have ?shifted cash ?into bank deposits, said Samikawa, a member of a finance ministry panel and frequent participant in BOJ forums.

An increase in bank deposits would ?lead to a higher overall balance that financial institutions hold with ?the BOJ, putting downward pressure on money market rates.

"The next anticipated rate hike to 1% could be a trigger point of such inflows... If the flow of funds back to bank accounts turns out to be big, it ?could ?complicate the BOJ's effort to guide short-term interest rates around ?its target," Samikawa said.

A prolonged era of heavy money printing has made it ?very hard to predict how funds could move as interest rates rise, she added.

The BOJ is shrinking its balance sheet after it ballooned five-fold in the past two decades to around 756 trillion yen ($4.88 trillion) due largely to the stimulus deployed in 2013.

The balance of reserves financial institutions hold with the BOJ currently stands at around ?454 trillion yen.

The BOJ can reduce the balance to around 280 trillion without causing a spike in short-term rates, Samikawa said, adding though that the ?numbers may fluctuate depending on future ?increases in bank lending.

($1 = 154.8700 yen)

(Reporting by Leika Kihara, ?editing by Andrei Khalip)