Tokyo: The International Monetary Fund (IMF) urged Japan to avoid withdrawing fiscal policy stimulus and said monetary policy should be loosened further if risks to the economy materialise, warning of weak consumption that remains vulnerable to external shocks.

While the Bank of Japan should maintain its ultra-loose policy, it should do so by focusing on capping long-term interest rates under its yield curve control policy, the IMF said on Monday.

To clarify that stance and enhance communication of its policy, the central bank should “phase out” a loose pledge to keep increasing its government bond holdings at an annual pace of 80 trillion yen ($721 billion), the Fund said.

IMF Deputy Managing Director David Lipton told Reuters in an interview later that it was premature for the BOJ to discuss an exit from massive monetary stimulus given that more time and efforts are needed to reach its 2 per cent inflation target.

“The BOJ should carefully calibrate its yield curve policy, if downside risks materialise, to provide additional monetary easing,” the IMF said in its annual Article 4 evaluation of Japan’s economy.

Lipton told reporters that the BOJ’s new monetary policy framework was already showing some success by bringing down market volatility and stabilising the bond yield curve.

“We’re comfortable with the stance of (BOJ) monetary policy.

Recent changes to the monetary policy ... (are) the right, useful approach,” Lipton told a news conference.

“What’s important is the maintenance of the approach that has been laid out and accompanying it with structural and fiscal agenda,” he said.

Lipton praised Prime Minister Shinzo Abe’s economic agenda, known as “Abenomics”, for raising economic growth since he took office in late 2012.

In particular, Lipton singled out Abe’s policies designed to narrow the wage gap between regular and contract employees performing the same task.

The Article 4 report also welcomed the Japanese government’s plans to curb excessive overtime hours, improve access to childcare and get even more women to enter the workforce.

However, the IMF rapped Japan for being too slow in introducing legislation to enact these policies and for its timid approach to lowering the income tax burden on married women with part-time jobs.

The IMF also called on Japan to speed up its structural reform agenda to ensure a recent acceleration in growth continues.

“It’s important there not be stop-and-go policies in any of the policies of Abenomics that may interfere with the gathering momentum of the economy,” Lipton told reporters.

“Abenomics has been successful and should be continued.”

The IMF called on Japan to keep its near-term fiscal stance neutral and avoid withdrawing stimulus in 2018.

To balance the need to sustain economic growth and achieve medium-term fiscal consolidation, Japan should gradually increase the consumption tax until it reaches at least 15 per cent and start the process “as soon as possible,” it said.

“The expiration of fiscal support in 2018 under current policies together with a smaller expansion in foreign demand would reduce growth to less than half of that in 2017,” the IMF said in its annual Article 4 evaluation of Japan’s economy.

“Without additional spending, the fiscal stance could become contractionary in 2018—20 due also to the scheduled consumption tax hike in October 2019.” The nation’s sales tax is now at 8 per cent. The government has pledged to raise it to 10 per cent in October 2019.

Under a new policy framework adopted last year, the BOJ now targets interest rates rather than the pace of money printing.

But it left a loose pledge to buy government bonds so its holdings increase at an annual pace of 80 trillion yen, partly to appease advocates of aggressive asset purchases in the BOJ’s nine-member board.