MSCI's broadest index of Asia-Pacific shares outside Japan fell 0.4% after earlier hitting its lowest levels in almost two weeks, while Japan's Nikkei share average dropped 2.2% from a six-year closing high set on Tuesday.
That retreat, which came after European shares had suffered their biggest falls since August, stemmed from profit-taking ahead of Friday's US job data, but also reflected worries about the Fed's exit from its asset purchase scheme.
European equities were expected to open flat to modestly higher, according to financial bookmakers.
"I think financial markets have already priced in an eventual tapering in the Fed's stimulus. The question is whether the economy can withstand it. The US economy slowed after the end of QE1 and QE2. So one cannot be so sure whether it would be okay this time," said Tohru Yamamoto, chief fixed income strategist at Daiwa Securities.
QE1 and QE2 refer to the Fed's previous episodes of massive asset purchasing, or quantitative easing, the first in 2008-2010 and the second in 2010-11.
Many analysts expect the Fed to begin reducing its latest bond purchases, dubbed QE3, at its March meeting, but some think that could be brought forward to January, or at the extreme, later this month, if the employment data comes in strong.
On Wall Street, the Dow Jones industrial average fell 0.6% while the Standard & Poor's 500 Index declined 0.32%, with consumer discretionary shares leading the losses amid signs of weak holiday shopping.
While Friday's US jobs report for November is seen as by far the most important, traders will be looking to the ADP employment report, new home sales figures, services activity readings from the Institute for Supply Management, all of which are scheduled for Wednesday.
Solid data on US manufacturing and housing in recent weeks has boosted optimism that the US economy was barely damaged by a government shutdown in October.
The spectre of tapering in the Fed's bond-buying could spook emerging market shares and currencies in particular -- given that they were among the hardest-hit when Fed Chairman Ben Bernanke floated the taper idea back in May.
"Ample liquidity from the Fed had flown to emerging markets, in a way hiding all the problems each market has. But after the Fed signalled tapering in May, investors are focusing on them," said Daisuke Uno, chief strategist at Sumitomo Mitsui Banking Corp.
In Asia, investors' concerns include persistent current account deficits in India and Indonesia, as well as the latest political instability in Thailand.
RUPIAH, BAHT RETREAT
The Indonesian rupiah weakened 0.9% to 11,990 rupiah per dollar after earlier falling to 12,000 to match a near five-year lows touched last week.
The Thai baht edged down 0.2% to 32.17 baht per dollar after protesters in Thailand trying to bring down the government rallied at national police headquarters. Their leader said the protesters' fight would go on despite efforts to defuse the crisis.
Revived talk of Fed tapering also diverted the yen's decline, which has been propelled by speculation of more carry-trades on the back of improving risk sentiment.
The dollar fell about 0.8% to 102.565 yen from Tuesday's six-month high of 103.38 yen.
The euro was steadier at $1.35855, not far from one-month high of $1.3622 hit last week.
The Australian dollar sank 0.8% to $0.9060 having earlier fallen to a three-month low of $0.9045, after Australia's July-September gross domestic product growth fell short of market expectations.
Gold and silver, which like stocks have benefited from the US stimulus because of inflation fears, traded near 5-month lows.
Gold last stood at $1,221.26 per ounce near Tuesday's five-month low of $1,215.60 while silver traded at $19.11, having slipped to $18.94 on Tuesday.
But oil prices jumped, with US crude futures hitting five-week high supported by an unexpected drawdown in US petroleum stocks.
Mainland Chinese shares also bucked the regional weakness, with Shanghai hitting a 12-week high on high hopes for economic reforms laid out by Beijing.
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
)