Bank of Japan Gov. Kazuo Ueda joined his deputy in strengthening market expectations for a potential interest rate hike next week, boosting the yen and signaling the central bank is doing its utmost to avoid a global market crash that followed July's hike.

The governor also indicated rising confidence over wage increases after hearing encouraging views at various New Year's events and at the BOJ's recent branch managers' meeting. He was speaking at an event hosted by the Regional Banks Association of Japan on Wednesday.

That suggests one of two key elements the bank needs ahead of a rate hike is cleared, as it tries to gauge the future of U.S. economic policy as Donald Trump moves into the White House next week.

Following Ueda’s remarks, the yen strengthened as much as 0.5% to ¥157.17 against the dollar, after earlier hovering around the ¥158 level.

Ueda’s latest comments come as BOJ watchers seek clues about the possibility of an increase in borrowing costs in the lead-up to the Jan. 23-24 policy meeting. Overnight index swaps show a 68% chance of a rate hike this month, with the odds increasing to 86% by March. The governor’s comments Wednesday were more specific about what may be discussed at the meeting compared to his views earlier this month.

Ueda’s remarks suggest the BOJ’s two top officials are on the same page. Deputy Gov. Ryozo Himino said Tuesday the policy board will decide whether to raise rates, signaling the possibility of a hike and boosting market expectations.

"Ueda’s comments are broadly similar to Himino’s, but given he’s the governor, the weight of his words are different,” said Takeshi Ishida, a currency strategist at Kansai Mirai Bank. "The market interpreted it as an increasing possibility of a January rate hike.”

Following the BOJ’s rate hike in July, global markets tanked, with the 225-issue Nikkei Stock Average falling by the most on record. Since then, the central bank has faced criticism about its communications, with Ueda being brought into parliament for questioning.

"It is not desirable for the conduct of monetary policy to intentionally cause surprises,” Himino said Tuesday. "The effectiveness of monetary policy depends significantly on how widely and accurately the central bank’s intentions are understood.”

At the upcoming meeting, the bank will also release its updated economic outlook report, where officials are likely to discuss raising their inflation outlook, according to people familiar with the matter.

The BOJ released its regional economic report following its branch managers’ meeting earlier this month, indicating some progress in pay gains. Businesses are increasingly aware of the need for sustained wage growth, the report noted.

Wage negotiations have started on a relatively positive note, with some companies, including retail giant Aeon and insurer Nippon Life Insurance, reportedly planning to raise salaries for certain employees by at least 6%. After the December policy meeting, Ueda said that he wanted to see additional information on wage trends.

His deputy Himino said that Donald Trump’s inauguration speech on Jan. 20 may give a clearer idea of the direction of U.S. economic policy going forward.

"The BOJ meeting next week is live with the U.S. economy and spring wage negotiations key determinants,” said Rodrigo Catril, senior foreign-exchange strategist at National Australia Bank in Sydney. "Assuming next Monday President Trump doesn’t announce any tariffs on Japan, then a hike looks like a strong possibility.”