TOKYO, Feb 15 (Reuters) – Japan unexpectedly slipped into a recession at the end of last year, losing its title as the world’s third-biggest economy to Germany and raising doubts about when the central bank would begin to exit its decade-long ultra-loose monetary policy.

Some analysts are warning of another contraction in the current quarter as weak demand in China, sluggish consumption and production halts at a unit of Toyota Motor Corp (7203.T), opens new tab all point to a challenging path to an economic recovery.

“This makes it harder for the central bank to justify a rate hike, let alone a series of hikes.”

Economy minister Yoshitaka Shindo stressed the need to achieve solid wage growth to underpin consumption, which he described as “lacking momentum” due to rising prices.

“Our understanding is that the BOJ looks comprehensively at various data, including consumption, and risks to the economy in guiding monetary policy,” he told a news conference after the data’s release, when asked about the impact on BOJ policy.

The yen was steady after the data and last stood at 150.22 per dollar, pinned near a three-month low hit earlier in the week.

Yields on Japanese government bonds fell after the data as some traders pushed back bets of an early BOJ policy shift. The benchmark 10-year yield slid 4 basis points to 0.715%. The Nikkei (.N225), opens new tab stock average rallied to 34-year highs, with the data further underpinning recent reassurances from the BOJ that borrowing costs will stay low even after ending negative rates.

“Weak domestic demand makes it hard for the BOJ to pivot towards monetary tightening,” said Naomi Muguruma, chief bond strategist at Mitsubishi UFJ Morgan Stanley Securities. “The hurdle for ending negative rates in March has risen.”