* MSCI's world equity index touches highest since Aug. 1
* U.S. and China ease trade war tensions
* ECB to announce fresh stimulus measures at 1145 GMT
* Yuan rises to three-week high
* Graphic: World FX rates in 2019 http://tmsnrt.rs/2egbfVh
(Updates prices; adds investor comment.)
By Tom Wilson
LONDON, Sept 12 (Reuters) - World stocks climbed to their
highest in six weeks on Thursday as the European Central Bank
prepared to offer new stimulus measures and the United States
and China made mutual concessions in their trade dispute,
improving demand for riskier bets.
U.S. President Donald Trump delayed an increase in tariffs
on Chinese goods by two weeks, after China exempted some U.S.
drugs and other goods from tariffs. The two moves buoyed stock
markets from Asia to Europe and put pressure on safe assets like
the Japanese yen. MSCI's world equity index .MIWD00000PUS , which tracks
shares in 47 countries, rose 0.1% to its highest since Aug. 1.
It was on course for its seventh straight day of gains, its best
winning streak in since early June.
Europe's Euro STOXX 600 .STOXX climbed to its highest in
nearly seven weeks, then gave up the gains. Paris .FCHI and
London .FTSE markets also relinquished early gains, though
Frankfurt .GDAXI held onto a 0.2% advance. Wall Street futures
gauges ESc1 were up 0.1%.
Some analysts said investors were getting too eager for good
news on the U.S.-China trade war. The prospects of a quick
resolution were still remote, they warned.
"I don't think we're heading for a deal soon," said Neil
Wilson, chief market analyst at Markets.com. "The market is just
buying on any kind of positive news – it seems hungry for
anything. It's setting itself up for a bit of disappointment."
The ECB's move, due at 1145 GMT, also carries a risk of
overly optimistic market expectations, investors said.
Major central banks worldwide are loosening monetary policy,
inflation expectations are sliding and the powerhouse German
economy is at risk of recession. Consequently, ECB President
Mario Draghi has all but promised more support. But the central bank's exact moves are far from certain, and
any decision that underwhelms markets could push up borrowing
costs.
Among the likely measures are a cut in the ECB's record-low
minus 0.4% deposit rate, a multi-tier deposit rate, and new
guidance on rates that would tie any move to certain inflation
conditions.
A new round of bond buying, the bank's most potent weapon,
is also an option - but policymakers from Germany to France are
sceptical about that move.
"We could see some disappointment here. The challenge is
more about forward guidance and reassurance for the future,"
said Christophe Barraud, chief economist at Market Securities in
Paris.
"It would be surprising if the ECB launches a big stimulus
right now ahead of uncertainties such as hard Brexit and the
trade war."
After the ECB decision, the U.S. Federal Reserve is expected
to cut rates next Wednesday and the Bank of Japan and Swiss
National Bank next Thursday also may ease.
BONDS CALM, YUAN RISES
Euro zone government bonds were steady in early trade, after
rising from record lows reached a week ago on doubts that the
ECB would resume asset purchases. "Whether the ECB cuts rates by 10 or 20 bps is neither here
or there," said Chris Scicluna, head of economic research at
Daiwa Capital Markets. "The big question is whether they restart
QE, and if they don't, we will see a further sell-off in bonds,
especially longer-dated ones."
The optimism over trade and the looming ECB decision were
felt in currency markets, too.
The euro EUR=EBS fell to a one-week low of $1.0983
overnight on expectations of ECB easing before steadying in
morning trade. It has shed 3.5% since June.
With risk-hungry investors emboldened, the Chinese yuan
CNH= gained 0.4% against the dollar, touching a three-week
high of 7.0855.
Stephen Gallo, European head of FX strategy at BMO Capital
Markets, said he was surprised by the rebound, particularly in
the yuan pushing beyond 7.10 to the dollar.
"The bigger picture is one of a very tense geopolitical
environment that is unlikely to be rectified quickly," he said.
The Japanese yen, a safe haven for nervous investors, fell
to a six-week low against the dollar, and was last down 0.1% at
107.88.
Brent crude futures LCOc1 fell as a meeting of the OPEC+
alliance yielded no discussion about increasing supply cuts.
They focused instead on bringing Nigerian and Iraqi output down
to their agreed quotas.
Brent crude futures LCOc1 fell 69 cents, or 1.1%, to
$60.12 a barrel by 1055 GMT, heading for a third session of
losses.
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