(Bloomberg) -- Japanese workers’ real wages fell by the most since 2014 despite the government’s push for more pay, underscoring the difficulty of achieving the central bank’s goal of inflation accompanied by robust wage gains.

Real cash earnings for Japan’s workers declined 4.1% from a year earlier in January, slipping for a 10th consecutive month, the labor ministry reported Tuesday. The worse-than-expected drop suggested Japan is still far from a virtuous economic cycle, as inflation continued to outpace gains in wages. A slump in bonuses for part-timers dragged on overall pay.

Growth in nominal wages sharply slowed from the previous month’s highest jump in a quarter century, which was largely driven by soaring winter bonuses. 

Tuesday’s data confirmed that December’s surge was temporary, making it more likely for the Bank of Japan to maintain its easy policy this week. Wages have become a key component for the future of monetary policy in Japan, after Governor Haruhiko Kuroda repeatedly said the central bank will keep monetary easing until both wages and prices rise steadily.

“It appears that many firms attempted to respond to inflation with one-time measures such as lump-sum payments rather than increases in base wages,” said Toru Suehiro, chief economist at Daiwa Securities. “The impact of December bonuses and inflationary allowances was expected to spill over into the non-bonus portion of wages, but this was not the case.”

Kuroda will be presiding over his last meeting of a decade-long term this week, but his attention on Japan’s wage trend will likely be inherited by academic Kazuo Ueda, who’s set to take over the BOJ’s helm from April.

Nominal cash earnings rose 0.8% from the previous year in January, still distant from the level the central bank has said is necessary for sustainable price growth. Kuroda indicated that a 3% wage hike would be necessary to support stable 2% inflation in Japan.

What Bloomberg Economics Says...

“Looking ahead, we expect pay growth to accelerate in 2Q23. Early results from this year’s wage negotiations between workers and management have sent a strong signal that point toward bigger increases. We expect a 2.8% bump in base pay for 2023, up from 2.2% last year.”

— Yuki Masujima, economist

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The stagnant salary data may mean significant pay increases shouldn’t be expected from upcoming spring wage negotiations between companies and labor unions. About 80% of Japanese firms are planning to raise wages, although most won’t reach the 5% increase target set by Rengo, Japan’s largest union federation, a report by Tokyo Shoko Research showed. Initial pay round results from Rengo are expected in March.

Prime Minister Fumio Kishida has repeatedly urged business leaders to raise wages at a faster pace than inflation, to help boost people’s spending power and to kickstart a virtuous cycle of business activity.

The government’s recent economic stimulus package, amounting to 39 trillion yen ($287 billion) in fiscal outlay, included incentives for businesses to increase payrolls.

Inflation outpacing wage growth has been weighing on consumption, with household spending declining for the second month in January, risking an entrenched cooling in consumer confidence.

While Tokyo inflation appeared to peak in February as the impact of subsidies kicked in, price gains are still far above the BOJ’s stated 2% target.

“Given today’s figures and the expected base-pay increase as a result of the spring wage negotiations, I think it will be difficult to achieve the BOJ’s 3% target on a steady basis,” said Daiwa’s Suehiro.

(Updates with more details from the report, economist comments. A previous version was corrected to show the correct publication date for the data.)

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