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TOKYO/HONG KONG (Reuters) - Speculation the Bank of Japan may wind back its monetary stimulus this year gripped markets on Tuesday after the central bank trimmed the amount of its purchases of Japanese government bonds.
Traders appeared to latch on to the BOJ announcement that it will buy less of the long-dated bonds, sending the dollar down about 0.5 percent against the yen and the longer dated 20- and 40-year bond yields up to their highest in a month.
While the move was in line with the BOJ's subtle reduction in its bond buying, the so-called 'stealth tapering', traders said it highlighted how sensitive markets are to a pullback in the massive stimulus that has been the centre piece of Prime Minister Shinzo Abe's 'Abenomics' policies of the past 4-1/2 years.
"This goes to show that the amount of attention being given to the word 'tapering,' or any action from the BOJ in that direction that could be taken as a suggestion of it, there's a lot of sensitivity around it," said Bart Wakabayashi, branch manager for State Street Bank in Tokyo.
BOJ Governor Haruhiko Kuroda has repeatedly dismissed the chance of withdrawing stimulus any time soon, even as some policymakers have recently expressed concerns over the perceived demerits of monetary easing, especially the hit on financial institutions' profit margins.
That has led to speculation that the central bank may have to consider raising its yield targets or slow purchases of risky assets later in 2018 and bringing Japan in line with a host of developed nations which have started to tighten policy, partly thanks to a synchronized uptick in global growth.
The Federal Reserve raised rates three times last year, while the Bank of Canada tightened policy for the first time in seven years and the European Central Bank has signalled it could start to taper soon.
The BOJ pledged in 2016 to guide short-term interest rates at minus 0.1 percent and 10-year bond yields at around zero percent.
It also keeps a loose pledge to increase its bond holdings at 80 trillion yen ($710.29 billion) per year, although the actual increase was only around 58 trillion last year, which some investors see as an effective tapering of the BOJ's stimulus.
On Tuesday, markets were surprised by the central bank's decision to reduce its purchases of JGBs with 10 to 25 years left to maturity as it was the first cut in that tenor in more than a year.
The announcement pushed the dollar to a session low of 112.50 yen, down around 0.5 percent on the day.
In the Japanese bond market the selloff was more measured, with yields on 20-year to 40-year paper rising to one-month highs but still well below last year's peaks.
"While it has become difficult to bid up JGBs, there's no reason to sell JGBs considering that the BOJ is highly unlikely to change its policy at least until it will have a new leadership in April," said Ryoko Tada, fixed income analyst at Nomura Securities.
None of the bank's current nine policy board members has proposed any reduction in stimulus. One has even proposed a further easing.
Since it adopted the yield curve control policy in 2016, the BOJ has tweaked its bond operations more than 10 times.
BOJ officials say any changes are fine-tuning meant to keep bond yields in line with its policy goal and not to telegraph hints on its future policy.
Some analysts say the inconsistency of the two policy targets requires a change of tack from the BOJ - a call the BOJ has shrugged off for many months.
"It's better to use the upcoming Jan. 23 meeting to tweak the policy - with a fresh balance sheet target at 40 trillion yen," Westpac analysts said in a note.
The difficulty is that inflation remains far off the BOJ's 2 percent target. Slow wage growth is one of the challenges.
Data on Tuesday showed Japan's real wages, which are adjusted for inflation, posted their first gain in 11 months in November, helped by a rise in year-end bonuses. But the increase was just 0.1 percent and economists warn that wages are unlikely to keep up with general price increases, which could hurt consumption.
($1 = 112.6300 yen)
(Reporting by Tokyo markets team; Writing by Marius Zaharia; Editing by Shri Navaratnam)
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)